From 7d7214e9f2d6c17483f33153eb6b0aa60e2d3196 Mon Sep 17 00:00:00 2001
From: "Daniel J. Summers" <daniel@bitbadger.solutions>
Date: Wed, 5 Jun 2024 07:52:36 -0400
Subject: [PATCH 1/3] Remove .NET 7 (#4)

- Bump version to 3.1
---
 src/Directory.Build.props | 8 ++++----
 src/test_all.sh           | 2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/Directory.Build.props b/src/Directory.Build.props
index e8389bc..274bd5c 100644
--- a/src/Directory.Build.props
+++ b/src/Directory.Build.props
@@ -1,11 +1,11 @@
 <Project>
   <PropertyGroup>
-    <TargetFrameworks>net6.0;net7.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net6.0;net8.0</TargetFrameworks>
     <DebugType>embedded</DebugType>
     <GenerateDocumentationFile>false</GenerateDocumentationFile>
-    <AssemblyVersion>3.0.0.0</AssemblyVersion>
-    <FileVersion>3.0.0.0</FileVersion>
-    <VersionPrefix>3.0.0</VersionPrefix>
+    <AssemblyVersion>3.1.0.0</AssemblyVersion>
+    <FileVersion>3.1.0.0</FileVersion>
+    <VersionPrefix>3.1.0</VersionPrefix>
     <Authors>danieljsummers</Authors>
     <Company>Bit Badger Solutions</Company>
     <PackageReadmeFile>README.md</PackageReadmeFile>
diff --git a/src/test_all.sh b/src/test_all.sh
index f93110d..65a2592 100755
--- a/src/test_all.sh
+++ b/src/test_all.sh
@@ -8,7 +8,7 @@ cd ./Tests || exit
 
 export BBDOX_PG_PORT=8301
 PG_VERSIONS=('12' '13' '14' '15' 'latest')
-NET_VERSIONS=('6.0' '7.0' '8.0')
+NET_VERSIONS=('6.0' '8.0')
 
 for PG_VERSION in "${PG_VERSIONS[@]}"
 do
-- 
2.45.1


From 1707d3ce63832f134d85634e10827bf7156e31a9 Mon Sep 17 00:00:00 2001
From: "Daniel J. Summers" <daniel@bitbadger.solutions>
Date: Wed, 5 Jun 2024 17:31:33 -0400
Subject: [PATCH 2/3] First cut of BT operator (#3)

---
 src/Common/Library.fs                   |  80 ++----------
 src/Postgres/Library.fs                 |  88 +++++++++++++-
 src/Sqlite/Library.fs                   |  96 ++++++++++++++-
 src/Tests.CSharp/CommonCSharpTests.cs   |  92 ++------------
 src/Tests.CSharp/PostgresCSharpTests.cs | 155 ++++++++++++++++++------
 src/Tests.CSharp/SqliteCSharpTests.cs   |  95 ++++++++++++++-
 src/Tests/CommonTests.fs                | 135 +++++++++------------
 src/Tests/PostgresTests.fs              | 113 ++++++++++++++++-
 src/Tests/SqliteTests.fs                |  94 +++++++++++++-
 9 files changed, 658 insertions(+), 290 deletions(-)

diff --git a/src/Common/Library.fs b/src/Common/Library.fs
index 56b6d1b..77dc4c1 100644
--- a/src/Common/Library.fs
+++ b/src/Common/Library.fs
@@ -15,6 +15,8 @@ type Op =
     | LE
     /// Not Equal to (<>)
     | NE
+    /// Between (BETWEEN)
+    | BT
     /// Exists (IS NOT NULL)
     | EX
     /// Does Not Exist (IS NULL)
@@ -28,6 +30,7 @@ type Op =
         | LT -> "<"
         | LE -> "<="
         | NE -> "<>"
+        | BT -> "BETWEEN"
         | EX -> "IS NOT NULL"
         | NEX -> "IS NULL"
 
@@ -68,11 +71,15 @@ type Field = {
     static member NE name (value: obj) =
         { Name = name; Op = NE; Value = value }
     
+    /// Create a BETWEEN field criterion
+    static member BT name (min: obj) (max: obj) =
+        { Name = name; Op = BT; Value = [ min; max ] }
+    
     /// Create an exists (IS NOT NULL) field criterion
     static member EX name =
         { Name = name; Op = EX; Value = obj () }
     
-    /// Create an not exists (IS NULL) field criterion
+    /// Create a not exists (IS NULL) field criterion
     static member NEX name =
         { Name = name; Op = NEX; Value = obj () }
 
@@ -150,17 +157,6 @@ module Query =
     let selectFromTable tableName =
         $"SELECT data FROM %s{tableName}"
     
-    /// Create a WHERE clause fragment to implement a comparison on a field in a JSON document
-    [<CompiledName "WhereByField">]
-    let whereByField field paramName =
-        let theRest = match field.Op with EX | NEX -> string field.Op | _ -> $"{field.Op} %s{paramName}"
-        $"data ->> '%s{field.Name}' {theRest}"
-    
-    /// Create a WHERE clause fragment to implement an ID-based query
-    [<CompiledName "WhereById">]
-    let whereById paramName =
-        whereByField (Field.EQ (Configuration.idField ()) 0) paramName
-    
     /// Queries to define tables and indexes
     module Definition =
         
@@ -202,62 +198,6 @@ module Query =
     [<CompiledName "Save">]
     let save tableName =
         sprintf
-            "INSERT INTO %s VALUES (@data) ON CONFLICT ((data ->> '%s')) DO UPDATE SET data = EXCLUDED.data"
+            "INSERT INTO %s VALUES (@data) ON CONFLICT ((data->>'%s')) DO UPDATE SET data = EXCLUDED.data"
             tableName (Configuration.idField ()) 
-    
-    /// Query to update a document
-    [<CompiledName "Update">]
-    let update tableName =
-        $"""UPDATE %s{tableName} SET data = @data WHERE {whereById "@id"}"""
-
-    /// Queries for counting documents
-    module Count =
-        
-        /// Query to count all documents in a table
-        [<CompiledName "All">]
-        let all tableName =
-            $"SELECT COUNT(*) AS it FROM %s{tableName}"
-        
-        /// Query to count matching documents using a text comparison on a JSON field
-        [<CompiledName "ByField">]
-        let byField tableName field =
-            $"""SELECT COUNT(*) AS it FROM %s{tableName} WHERE {whereByField field "@field"}"""
-        
-    /// Queries for determining document existence
-    module Exists =
-
-        /// Query to determine if a document exists for the given ID
-        [<CompiledName "ById">]
-        let byId tableName =
-            $"""SELECT EXISTS (SELECT 1 FROM %s{tableName} WHERE {whereById "@id"}) AS it"""
-
-        /// Query to determine if documents exist using a comparison on a JSON field
-        [<CompiledName "ByField">]
-        let byField tableName field =
-            $"""SELECT EXISTS (SELECT 1 FROM %s{tableName} WHERE {whereByField field "@field"}) AS it"""
-        
-    /// Queries for retrieving documents
-    module Find =
-
-        /// Query to retrieve a document by its ID
-        [<CompiledName "ById">]
-        let byId tableName =
-            $"""{selectFromTable tableName} WHERE {whereById "@id"}"""
-        
-        /// Query to retrieve documents using a comparison on a JSON field
-        [<CompiledName "ByField">]
-        let byField tableName field =
-            $"""{selectFromTable tableName} WHERE {whereByField field "@field"}"""
-        
-    /// Queries to delete documents
-    module Delete =
-        
-        /// Query to delete a document by its ID
-        [<CompiledName "ById">]
-        let byId tableName =
-            $"""DELETE FROM %s{tableName} WHERE {whereById "@id"}"""
-
-        /// Query to delete documents using a comparison on a JSON field
-        [<CompiledName "ByField">]
-        let byField tableName field =
-            $"""DELETE FROM %s{tableName} WHERE {whereByField field "@field"}"""
+    
\ No newline at end of file
diff --git a/src/Postgres/Library.fs b/src/Postgres/Library.fs
index 1351af8..cd551d4 100644
--- a/src/Postgres/Library.fs
+++ b/src/Postgres/Library.fs
@@ -63,17 +63,29 @@ module Parameters =
     let jsonParam (name: string) (it: 'TJson) =
         name, Sql.jsonb (Configuration.serializer().Serialize it)
 
-    /// Create a JSON field parameter (name "@field")
+    /// Create a JSON field parameter
     [<CompiledName "FSharpAddField">]
     let addFieldParam name field parameters =
         match field.Op with
         | EX | NEX -> parameters
+        | BT ->
+            let values = field.Value :?> obj list
+            List.concat
+                [ parameters
+                  [ ($"{name}min", Sql.parameter (NpgsqlParameter($"{name}min", List.head values)))
+                    ($"{name}max", Sql.parameter (NpgsqlParameter($"{name}max", List.last values))) ] ]
         | _ -> (name, Sql.parameter (NpgsqlParameter(name, field.Value))) :: parameters
 
-    /// Create a JSON field parameter (name "@field")
+    /// Create a JSON field parameter
     let AddField name field parameters =
         match field.Op with
         | EX | NEX -> parameters
+        | BT ->
+            let values = field.Value :?> obj list
+            ResizeArray
+                [ ($"{name}min", Sql.parameter (NpgsqlParameter($"{name}min", List.head values)))
+                  ($"{name}max", Sql.parameter (NpgsqlParameter($"{name}max", List.last values))) ]
+            |> Seq.append parameters
         | _ -> (name, Sql.parameter (NpgsqlParameter(name, field.Value))) |> Seq.singleton |> Seq.append parameters
 
     /// Append JSON field name parameters for the given field names to the given parameters
@@ -97,6 +109,25 @@ module Parameters =
 [<RequireQualifiedAccess>]
 module Query =
     
+    /// Create a WHERE clause fragment to implement a comparison on a field in a JSON document
+    [<CompiledName "WhereByField">]
+    let whereByField field paramName =
+        match field.Op with
+        | EX | NEX -> $"data->>'{field.Name}' {field.Op}"
+        | BT ->
+            let names  = $"{paramName}min AND {paramName}max"
+            let values = field.Value :?> obj list
+            match values[0] with
+            | :? int8    | :? uint8  | :? int16  | :? uint16 | :? int | :? uint32 | :? int64 | :? uint64
+            | :? decimal | :? single | :? double -> $"(data->>'{field.Name}')::numeric {field.Op} {names}"
+            | _ -> $"data->>'{field.Name}' {field.Op} {names}"
+        | _ -> $"data->>'{field.Name}' {field.Op} %s{paramName}"
+    
+    /// Create a WHERE clause fragment to implement an ID-based query
+    [<CompiledName "WhereById">]
+    let whereById paramName =
+        whereByField (Field.EQ (Configuration.idField ()) 0) paramName
+    
     /// Table and index definition queries
     module Definition =
         
@@ -112,6 +143,11 @@ module Query =
             let tableName = name.Split '.' |> Array.last
             $"CREATE INDEX IF NOT EXISTS idx_{tableName}_document ON {name} USING GIN (data{extraOps})"
 
+    /// Query to update a document
+    [<CompiledName "Update">]
+    let update tableName =
+        $"""UPDATE %s{tableName} SET data = @data WHERE {whereById "@id"}"""
+
     /// Create a WHERE clause fragment to implement a @> (JSON contains) condition
     [<CompiledName "WhereDataContains">]
     let whereDataContains paramName =
@@ -125,6 +161,16 @@ module Query =
     /// Queries for counting documents
     module Count =
         
+        /// Query to count all documents in a table
+        [<CompiledName "All">]
+        let all tableName =
+            $"SELECT COUNT(*) AS it FROM %s{tableName}"
+        
+        /// Query to count matching documents using a text comparison on a JSON field
+        [<CompiledName "ByField">]
+        let byField tableName field =
+            $"""SELECT COUNT(*) AS it FROM %s{tableName} WHERE {whereByField field "@field"}"""
+        
         /// Query to count matching documents using a JSON containment query (@>)
         [<CompiledName "ByContains">]
         let byContains tableName =
@@ -138,6 +184,16 @@ module Query =
     /// Queries for determining document existence
     module Exists =
 
+        /// Query to determine if a document exists for the given ID
+        [<CompiledName "ById">]
+        let byId tableName =
+            $"""SELECT EXISTS (SELECT 1 FROM %s{tableName} WHERE {whereById "@id"}) AS it"""
+
+        /// Query to determine if documents exist using a comparison on a JSON field
+        [<CompiledName "ByField">]
+        let byField tableName field =
+            $"""SELECT EXISTS (SELECT 1 FROM %s{tableName} WHERE {whereByField field "@field"}) AS it"""
+        
         /// Query to determine if documents exist using a JSON containment query (@>)
         [<CompiledName "ByContains">]
         let byContains tableName =
@@ -151,6 +207,16 @@ module Query =
     /// Queries for retrieving documents
     module Find =
 
+        /// Query to retrieve a document by its ID
+        [<CompiledName "ById">]
+        let byId tableName =
+            $"""{Query.selectFromTable tableName} WHERE {whereById "@id"}"""
+        
+        /// Query to retrieve documents using a comparison on a JSON field
+        [<CompiledName "ByField">]
+        let byField tableName field =
+            $"""{Query.selectFromTable tableName} WHERE {whereByField field "@field"}"""
+        
         /// Query to retrieve documents using a JSON containment query (@>)
         [<CompiledName "ByContains">]
         let byContains tableName =
@@ -171,12 +237,12 @@ module Query =
         /// Query to patch a document by its ID
         [<CompiledName "ById">]
         let byId tableName =
-            Query.whereById "@id" |> update tableName
+            whereById "@id" |> update tableName
         
         /// Query to patch documents match a JSON field comparison (->> =)
         [<CompiledName "ByField">]
         let byField tableName field =
-            Query.whereByField field "@field" |> update tableName
+            whereByField field "@field" |> update tableName
         
         /// Query to patch documents matching a JSON containment query (@>)
         [<CompiledName "ByContains">]
@@ -198,12 +264,12 @@ module Query =
         /// Query to remove fields from a document by the document's ID
         [<CompiledName "ById">]
         let byId tableName =
-            Query.whereById "@id" |> update tableName
+            whereById "@id" |> update tableName
         
         /// Query to remove fields from documents via a comparison on a JSON field within the document
         [<CompiledName "ByField">]
         let byField tableName field =
-            Query.whereByField field "@field" |> update tableName
+            whereByField field "@field" |> update tableName
         
         /// Query to patch documents matching a JSON containment query (@>)
         [<CompiledName "ByContains">]
@@ -218,6 +284,16 @@ module Query =
     /// Queries to delete documents
     module Delete =
         
+        /// Query to delete a document by its ID
+        [<CompiledName "ById">]
+        let byId tableName =
+            $"""DELETE FROM %s{tableName} WHERE {whereById "@id"}"""
+
+        /// Query to delete documents using a comparison on a JSON field
+        [<CompiledName "ByField">]
+        let byField tableName field =
+            $"""DELETE FROM %s{tableName} WHERE {whereByField field "@field"}"""
+        
         /// Query to delete documents using a JSON containment query (@>)
         [<CompiledName "ByContains">]
         let byContains tableName =
diff --git a/src/Sqlite/Library.fs b/src/Sqlite/Library.fs
index 8e7cdb7..27815f8 100644
--- a/src/Sqlite/Library.fs
+++ b/src/Sqlite/Library.fs
@@ -31,6 +31,21 @@ module Configuration =
 [<RequireQualifiedAccess>]
 module Query =
     
+    /// Create a WHERE clause fragment to implement a comparison on a field in a JSON document
+    [<CompiledName "WhereByField">]
+    let whereByField field paramName =
+        let theRest =
+            match field.Op with
+            | EX | NEX -> ""
+            | BT -> $" {paramName}min AND {paramName}max"
+            | _ -> $" %s{paramName}"
+        $"data->>'{field.Name}' {field.Op}{theRest}"
+    
+    /// Create a WHERE clause fragment to implement an ID-based query
+    [<CompiledName "WhereById">]
+    let whereById paramName =
+        whereByField (Field.EQ (Configuration.idField ()) 0) paramName
+    
     /// Data definition
     module Definition =
 
@@ -39,6 +54,50 @@ module Query =
         let ensureTable name =
             Query.Definition.ensureTableFor name "TEXT"
     
+    /// Query to update a document
+    [<CompiledName "Update">]
+    let update tableName =
+        $"""UPDATE %s{tableName} SET data = @data WHERE {whereById "@id"}"""
+
+    /// Queries for counting documents
+    module Count =
+        
+        /// Query to count all documents in a table
+        [<CompiledName "All">]
+        let all tableName =
+            $"SELECT COUNT(*) AS it FROM %s{tableName}"
+        
+        /// Query to count matching documents using a text comparison on a JSON field
+        [<CompiledName "ByField">]
+        let byField tableName field =
+            $"""SELECT COUNT(*) AS it FROM %s{tableName} WHERE {whereByField field "@field"}"""
+        
+    /// Queries for determining document existence
+    module Exists =
+
+        /// Query to determine if a document exists for the given ID
+        [<CompiledName "ById">]
+        let byId tableName =
+            $"""SELECT EXISTS (SELECT 1 FROM %s{tableName} WHERE {whereById "@id"}) AS it"""
+
+        /// Query to determine if documents exist using a comparison on a JSON field
+        [<CompiledName "ByField">]
+        let byField tableName field =
+            $"""SELECT EXISTS (SELECT 1 FROM %s{tableName} WHERE {whereByField field "@field"}) AS it"""
+        
+    /// Queries for retrieving documents
+    module Find =
+
+        /// Query to retrieve a document by its ID
+        [<CompiledName "ById">]
+        let byId tableName =
+            $"""{Query.selectFromTable tableName} WHERE {whereById "@id"}"""
+        
+        /// Query to retrieve documents using a comparison on a JSON field
+        [<CompiledName "ByField">]
+        let byField tableName field =
+            $"""{Query.selectFromTable tableName} WHERE {whereByField field "@field"}"""
+        
     /// Document patching (partial update) queries
     module Patch =
         
@@ -49,12 +108,12 @@ module Query =
         /// Query to patch (partially update) a document by its ID
         [<CompiledName "ById">]
         let byId tableName =
-            Query.whereById "@id" |> update tableName
+            whereById "@id" |> update tableName
             
         /// Query to patch (partially update) a document via a comparison on a JSON field
         [<CompiledName "ByField">]
         let byField tableName field =
-            Query.whereByField field "@field" |> update tableName
+            whereByField field "@field" |> update tableName
     
     /// Queries to remove fields from documents
     module RemoveFields =
@@ -67,7 +126,7 @@ module Query =
         /// Query to remove fields from a document by the document's ID
         [<CompiledName "FSharpById">]
         let byId tableName parameters =
-            Query.whereById "@id" |> update tableName parameters
+            whereById "@id" |> update tableName parameters
         
         /// Query to remove fields from a document by the document's ID
         let ById(tableName, parameters) =
@@ -76,12 +135,25 @@ module Query =
         /// Query to remove fields from documents via a comparison on a JSON field within the document
         [<CompiledName "FSharpByField">]
         let byField tableName field parameters =
-            Query.whereByField field "@field" |> update tableName parameters
+            whereByField field "@field" |> update tableName parameters
         
         /// Query to remove fields from documents via a comparison on a JSON field within the document
         let ByField(tableName, field, parameters) =
             byField tableName field (List.ofSeq parameters)
 
+    /// Queries to delete documents
+    module Delete =
+        
+        /// Query to delete a document by its ID
+        [<CompiledName "ById">]
+        let byId tableName =
+            $"""DELETE FROM %s{tableName} WHERE {whereById "@id"}"""
+
+        /// Query to delete documents using a comparison on a JSON field
+        [<CompiledName "ByField">]
+        let byField tableName field =
+            $"""DELETE FROM %s{tableName} WHERE {whereByField field "@field"}"""
+        
 
 /// Parameter handling helpers
 [<AutoOpen>]
@@ -100,12 +172,26 @@ module Parameters =
     /// Create a JSON field parameter (name "@field")
     [<CompiledName "FSharpAddField">]
     let addFieldParam name field parameters =
-        match field.Op with EX | NEX -> parameters | _ -> SqliteParameter(name, field.Value) :: parameters
+        match field.Op with
+        | EX | NEX -> parameters
+        | BT ->
+            let values = field.Value :?> obj list
+            SqliteParameter($"{name}min", values[0]) :: SqliteParameter($"{name}max", values[1]) :: parameters
+        | _ -> SqliteParameter(name, field.Value) :: parameters
     
     /// Create a JSON field parameter (name "@field")
     let AddField(name, field, parameters) =
         match field.Op with
         | EX | NEX -> parameters
+        | BT ->
+            let values = field.Value :?> obj list
+            // let min = SqliteParameter($"{name}min", SqliteType.Integer)
+            // min.Value <- values[0]
+            // let max = SqliteParameter($"{name}max", SqliteType.Integer)
+            // max.Value <- values[1]
+            [ SqliteParameter($"{name}min", values[0]); SqliteParameter($"{name}max", values[1]) ]
+            // [min; max]
+            |> Seq.append parameters
         | _ -> SqliteParameter(name, field.Value) |> Seq.singleton |> Seq.append parameters
 
     /// Append JSON field name parameters for the given field names to the given parameters
diff --git a/src/Tests.CSharp/CommonCSharpTests.cs b/src/Tests.CSharp/CommonCSharpTests.cs
index 1426c3c..fd8162a 100644
--- a/src/Tests.CSharp/CommonCSharpTests.cs
+++ b/src/Tests.CSharp/CommonCSharpTests.cs
@@ -1,5 +1,6 @@
 using Expecto.CSharp;
 using Expecto;
+using Microsoft.FSharp.Collections;
 
 namespace BitBadger.Documents.Tests.CSharp;
 
@@ -96,6 +97,10 @@ public static class CommonCSharpTests
             {
                 Expect.equal(Op.NE.ToString(), "<>", "The not equal to operator was not correct");
             }),
+            TestCase("BT succeeds", () =>
+            {
+                Expect.equal(Op.BT.ToString(), "BETWEEN", "The \"between\" operator was not correct");
+            }),
             TestCase("EX succeeds", () =>
             {
                 Expect.equal(Op.EX.ToString(), "IS NOT NULL", "The \"exists\" operator was not correct");
@@ -149,6 +154,13 @@ public static class CommonCSharpTests
                 Expect.equal(field.Op, Op.NE, "Operator incorrect");
                 Expect.equal(field.Value, "here", "Value incorrect");
             }),
+            TestCase("BT succeeds", () =>
+            {
+                var field = Field.BT("Age", 18, 49);
+                Expect.equal(field.Name, "Age", "Field name incorrect");
+                Expect.equal(field.Op, Op.BT, "Operator incorrect");
+                Expect.equal(((FSharpList<object>)field.Value).ToArray(), new object[] { 18, 49 }, "Value incorrect");
+            }),
             TestCase("EX succeeds", () =>
             {
                 var field = Field.EX("Groovy");
@@ -169,23 +181,6 @@ public static class CommonCSharpTests
                 Expect.equal(Query.SelectFromTable("test.table"), "SELECT data FROM test.table",
                     "SELECT statement not correct");
             }),
-            TestCase("WhereById succeeds", () =>
-            {
-                Expect.equal(Query.WhereById("@id"), "data ->> 'Id' = @id", "WHERE clause not correct");
-            }),
-            TestList("WhereByField", new[]
-            {
-                TestCase("succeeds when a logical operator is passed", () =>
-                {
-                    Expect.equal(Query.WhereByField(Field.GT("theField", 0), "@test"), "data ->> 'theField' > @test",
-                        "WHERE clause not correct");
-                }),
-                TestCase("succeeds when an existence operator is passed", () =>
-                {
-                    Expect.equal(Query.WhereByField(Field.NEX("thatField"), ""), "data ->> 'thatField' IS NULL",
-                        "WHERE clause not correct");
-                })
-            }),
             TestList("Definition", new[]
             {
                 TestCase("EnsureTableFor succeeds", () =>
@@ -226,69 +221,8 @@ public static class CommonCSharpTests
             TestCase("Save succeeds", () =>
             {
                 Expect.equal(Query.Save("tbl"),
-                    $"INSERT INTO tbl VALUES (@data) ON CONFLICT ((data ->> 'Id')) DO UPDATE SET data = EXCLUDED.data",
+                    "INSERT INTO tbl VALUES (@data) ON CONFLICT ((data->>'Id')) DO UPDATE SET data = EXCLUDED.data",
                     "INSERT ON CONFLICT UPDATE statement not correct");
-            }),
-            TestCase("Update succeeds", () =>
-            {
-                Expect.equal(Query.Update("tbl"), "UPDATE tbl SET data = @data WHERE data ->> 'Id' = @id",
-                    "UPDATE full statement not correct");
-            }),
-            TestList("Count", new[]
-            {
-                TestCase("All succeeds", () =>
-                {
-                    Expect.equal(Query.Count.All("tbl"), "SELECT COUNT(*) AS it FROM tbl", "Count query not correct");
-                }),
-                TestCase("ByField succeeds", () =>
-                {
-                    Expect.equal(Query.Count.ByField("tbl", Field.EQ("thatField", 0)),
-                        "SELECT COUNT(*) AS it FROM tbl WHERE data ->> 'thatField' = @field",
-                        "JSON field text comparison count query not correct");
-                })
-            }),
-            TestList("Exists", new[]
-            {
-                TestCase("ById succeeds", () =>
-                {
-                    Expect.equal(Query.Exists.ById("tbl"),
-                        "SELECT EXISTS (SELECT 1 FROM tbl WHERE data ->> 'Id' = @id) AS it",
-                        "ID existence query not correct");
-                }),
-                TestCase("ByField succeeds", () =>
-                {
-                    Expect.equal(Query.Exists.ByField("tbl", Field.LT("Test", 0)),
-                        "SELECT EXISTS (SELECT 1 FROM tbl WHERE data ->> 'Test' < @field) AS it",
-                        "JSON field text comparison exists query not correct");
-                })
-            }),
-            TestList("Find", new[]
-            {
-                TestCase("ById succeeds", () =>
-                {
-                    Expect.equal(Query.Find.ById("tbl"), "SELECT data FROM tbl WHERE data ->> 'Id' = @id",
-                        "SELECT by ID query not correct");
-                }),
-                TestCase("ByField succeeds", () =>
-                {
-                    Expect.equal(Query.Find.ByField("tbl", Field.GE("Golf", 0)),
-                        "SELECT data FROM tbl WHERE data ->> 'Golf' >= @field",
-                        "SELECT by JSON comparison query not correct");
-                })
-            }),
-            TestList("Delete", new[]
-            {
-                TestCase("ById succeeds", () =>
-                {
-                    Expect.equal(Query.Delete.ById("tbl"), "DELETE FROM tbl WHERE data ->> 'Id' = @id",
-                        "DELETE by ID query not correct");
-                }),
-                TestCase("ByField succeeds", () =>
-                {
-                    Expect.equal(Query.Delete.ByField("tbl", Field.NEX("gone")),
-                        "DELETE FROM tbl WHERE data ->> 'gone' IS NULL",
-                        "DELETE by JSON comparison query not correct");
-                })
             })
         })
     });
diff --git a/src/Tests.CSharp/PostgresCSharpTests.cs b/src/Tests.CSharp/PostgresCSharpTests.cs
index 1d6c158..8f892a8 100644
--- a/src/Tests.CSharp/PostgresCSharpTests.cs
+++ b/src/Tests.CSharp/PostgresCSharpTests.cs
@@ -47,42 +47,48 @@ public static class PostgresCSharpTests
                 {
                     var it = Parameters.AddField("@it", Field.EX("It"), Enumerable.Empty<Tuple<string, SqlValue>>());
                     Expect.isEmpty(it, "There should not have been any parameters added");
+                }),
+                TestCase("succeeds when two parameters are added", () =>
+                {
+                    var it = Parameters.AddField("@field", Field.BT("that", "eh", "zed"),
+                        Enumerable.Empty<Tuple<string, SqlValue>>()).ToList();
+                    Expect.hasLength(it, 2, "There should have been 2 parameters added");
+                    Expect.equal(it[0].Item1, "@fieldmin", "Minimum field name not correct");
+                    Expect.isTrue(it[0].Item2.IsParameter, "Minimum field parameter value incorrect");
+                    Expect.equal(it[1].Item1, "@fieldmax", "Maximum field name not correct");
+                    Expect.isTrue(it[1].Item2.IsParameter, "Maximum field parameter value incorrect");
                 })
-            }),
-            TestList("RemoveFields", new[]
-            {
-                TestCase("ById succeeds", () =>
-                {
-                    Expect.equal(Postgres.Query.RemoveFields.ById("tbl"),
-                        "UPDATE tbl SET data = data - @name WHERE data ->> 'Id' = @id",
-                        "Remove field by ID query not correct");
-                }),
-                TestCase("ByField succeeds", () =>
-                {
-                    Expect.equal(Postgres.Query.RemoveFields.ByField("tbl", Field.LT("Fly", 0)),
-                        "UPDATE tbl SET data = data - @name WHERE data ->> 'Fly' < @field",
-                        "Remove field by field query not correct");
-                }),
-                TestCase("ByContains succeeds", () =>
-                {
-                    Expect.equal(Postgres.Query.RemoveFields.ByContains("tbl"),
-                        "UPDATE tbl SET data = data - @name WHERE data @> @criteria",
-                        "Remove field by contains query not correct");
-                }),
-                TestCase("ByJsonPath succeeds", () =>
-                {
-                    Expect.equal(Postgres.Query.RemoveFields.ByJsonPath("tbl"),
-                        "UPDATE tbl SET data = data - @name WHERE data @? @path::jsonpath",
-                        "Remove field by JSON path query not correct");
-                })
-            }),
-            TestCase("None succeeds", () =>
-            {
-                Expect.isEmpty(Parameters.None, "The no-params sequence should be empty");
             })
         }),
         TestList("Query", new[]
         {
+            TestList("WhereByField", new[]
+            {
+                TestCase("succeeds when a logical operator is passed", () =>
+                {
+                    Expect.equal(Postgres.Query.WhereByField(Field.GT("theField", 0), "@test"),
+                        "data->>'theField' > @test", "WHERE clause not correct");
+                }),
+                TestCase("succeeds when an existence operator is passed", () =>
+                {
+                    Expect.equal(Postgres.Query.WhereByField(Field.NEX("thatField"), ""), "data->>'thatField' IS NULL",
+                        "WHERE clause not correct");
+                }),
+                TestCase("succeeds when a between operator is passed with numeric values", () =>
+                {
+                    Expect.equal(Postgres.Query.WhereByField(Field.BT("aField", 50, 99), "@range"),
+                        "(data->>'aField')::numeric BETWEEN @rangemin AND @rangemax", "WHERE clause not correct");
+                }),
+                TestCase("succeeds when a between operator is passed with non-numeric values", () =>
+                {
+                    Expect.equal(Postgres.Query.WhereByField(Field.BT("field0", "a", "b"), "@alpha"),
+                        "data->>'field0' BETWEEN @alphamin AND @alphamax", "WHERE clause not correct");
+                })
+            }),
+            TestCase("WhereById succeeds", () =>
+            {
+                Expect.equal(Postgres.Query.WhereById("@id"), "data->>'Id' = @id", "WHERE clause not correct");
+            }),
             TestList("Definition", new[]
             {
                 TestCase("EnsureTable succeeds", () =>
@@ -107,6 +113,11 @@ public static class PostgresCSharpTests
                         "CREATE INDEX statement not constructed correctly");
                 })
             }),
+            TestCase("Update succeeds", () =>
+            {
+                Expect.equal(Postgres.Query.Update("tbl"), "UPDATE tbl SET data = @data WHERE data->>'Id' = @id",
+                    "UPDATE full statement not correct");
+            }),
             TestCase("WhereDataContains succeeds", () =>
             {
                 Expect.equal(Postgres.Query.WhereDataContains("@test"), "data @> @test",
@@ -119,6 +130,17 @@ public static class PostgresCSharpTests
             }),
             TestList("Count", new[]
             {
+                TestCase("All succeeds", () =>
+                {
+                    Expect.equal(Postgres.Query.Count.All(PostgresDb.TableName),
+                        $"SELECT COUNT(*) AS it FROM {PostgresDb.TableName}", "Count query not correct");
+                }),
+                TestCase("ByField succeeds", () =>
+                {
+                    Expect.equal(Postgres.Query.Count.ByField(PostgresDb.TableName, Field.EQ("thatField", 0)),
+                        $"SELECT COUNT(*) AS it FROM {PostgresDb.TableName} WHERE data->>'thatField' = @field",
+                        "JSON field text comparison count query not correct");
+                }),
                 TestCase("ByContains succeeds", () =>
                 {
                     Expect.equal(Postgres.Query.Count.ByContains(PostgresDb.TableName),
@@ -134,6 +156,18 @@ public static class PostgresCSharpTests
             }),
             TestList("Exists", new[]
             {
+                TestCase("ById succeeds", () =>
+                {
+                    Expect.equal(Postgres.Query.Exists.ById(PostgresDb.TableName),
+                        $"SELECT EXISTS (SELECT 1 FROM {PostgresDb.TableName} WHERE data->>'Id' = @id) AS it",
+                        "ID existence query not correct");
+                }),
+                TestCase("ByField succeeds", () =>
+                {
+                    Expect.equal(Postgres.Query.Exists.ByField(PostgresDb.TableName, Field.LT("Test", 0)),
+                        $"SELECT EXISTS (SELECT 1 FROM {PostgresDb.TableName} WHERE data->>'Test' < @field) AS it",
+                        "JSON field text comparison exists query not correct");
+                }),
                 TestCase("ByContains succeeds", () =>
                 {
                     Expect.equal(Postgres.Query.Exists.ByContains(PostgresDb.TableName),
@@ -149,6 +183,18 @@ public static class PostgresCSharpTests
             }),
             TestList("Find", new[]
             {
+                TestCase("ById succeeds", () =>
+                {
+                    Expect.equal(Postgres.Query.Find.ById(PostgresDb.TableName),
+                        $"SELECT data FROM {PostgresDb.TableName} WHERE data->>'Id' = @id",
+                        "SELECT by ID query not correct");
+                }),
+                TestCase("ByField succeeds", () =>
+                {
+                    Expect.equal(Postgres.Query.Find.ByField(PostgresDb.TableName, Field.GE("Golf", 0)),
+                        $"SELECT data FROM {PostgresDb.TableName} WHERE data->>'Golf' >= @field",
+                        "SELECT by JSON comparison query not correct");
+                }),
                 TestCase("byContains succeeds", () =>
                 {
                     Expect.equal(Postgres.Query.Find.ByContains(PostgresDb.TableName),
@@ -167,13 +213,13 @@ public static class PostgresCSharpTests
                 TestCase("ById succeeds", () =>
                 {
                     Expect.equal(Postgres.Query.Patch.ById(PostgresDb.TableName),
-                        $"UPDATE {PostgresDb.TableName} SET data = data || @data WHERE data ->> 'Id' = @id",
+                        $"UPDATE {PostgresDb.TableName} SET data = data || @data WHERE data->>'Id' = @id",
                         "UPDATE partial by ID statement not correct");
                 }),
                 TestCase("ByField succeeds", () =>
                 {
                     Expect.equal(Postgres.Query.Patch.ByField(PostgresDb.TableName, Field.LT("Snail", 0)),
-                        $"UPDATE {PostgresDb.TableName} SET data = data || @data WHERE data ->> 'Snail' < @field",
+                        $"UPDATE {PostgresDb.TableName} SET data = data || @data WHERE data->>'Snail' < @field",
                         "UPDATE partial by ID statement not correct");
                 }),
                 TestCase("ByContains succeeds", () =>
@@ -189,8 +235,47 @@ public static class PostgresCSharpTests
                         "UPDATE partial by JSON Path statement not correct");
                 })
             }),
+            TestList("RemoveFields", new[]
+            {
+                TestCase("ById succeeds", () =>
+                {
+                    Expect.equal(Postgres.Query.RemoveFields.ById(PostgresDb.TableName),
+                        $"UPDATE {PostgresDb.TableName} SET data = data - @name WHERE data->>'Id' = @id",
+                        "Remove field by ID query not correct");
+                }),
+                TestCase("ByField succeeds", () =>
+                {
+                    Expect.equal(Postgres.Query.RemoveFields.ByField(PostgresDb.TableName, Field.LT("Fly", 0)),
+                        $"UPDATE {PostgresDb.TableName} SET data = data - @name WHERE data->>'Fly' < @field",
+                        "Remove field by field query not correct");
+                }),
+                TestCase("ByContains succeeds", () =>
+                {
+                    Expect.equal(Postgres.Query.RemoveFields.ByContains(PostgresDb.TableName),
+                        $"UPDATE {PostgresDb.TableName} SET data = data - @name WHERE data @> @criteria",
+                        "Remove field by contains query not correct");
+                }),
+                TestCase("ByJsonPath succeeds", () =>
+                {
+                    Expect.equal(Postgres.Query.RemoveFields.ByJsonPath(PostgresDb.TableName),
+                        $"UPDATE {PostgresDb.TableName} SET data = data - @name WHERE data @? @path::jsonpath",
+                        "Remove field by JSON path query not correct");
+                })
+            }),
             TestList("Delete", new[]
             {
+                TestCase("ById succeeds", () =>
+                {
+                    Expect.equal(Postgres.Query.Delete.ById(PostgresDb.TableName),
+                        $"DELETE FROM {PostgresDb.TableName} WHERE data->>'Id' = @id",
+                        "DELETE by ID query not correct");
+                }),
+                TestCase("ByField succeeds", () =>
+                {
+                    Expect.equal(Postgres.Query.Delete.ByField(PostgresDb.TableName, Field.NEX("gone")),
+                        $"DELETE FROM {PostgresDb.TableName} WHERE data->>'gone' IS NULL",
+                        "DELETE by JSON comparison query not correct");
+                }),
                 TestCase("byContains succeeds", () =>
                 {
                     Expect.equal(Postgres.Query.Delete.ByContains(PostgresDb.TableName),
@@ -469,8 +554,8 @@ public static class PostgresCSharpTests
                 await using var db = PostgresDb.BuildDb();
                 await LoadDocs();
 
-                var theCount = await Count.ByField(PostgresDb.TableName, Field.EQ("Value", "purple"));
-                Expect.equal(theCount, 2, "There should have been 2 matching documents");
+                var theCount = await Count.ByField(PostgresDb.TableName, Field.BT("NumValue", 10, 20));
+                Expect.equal(theCount, 3, "There should have been 3 matching documents");
             }),
             TestCase("ByContains succeeds", async () =>
             {
diff --git a/src/Tests.CSharp/SqliteCSharpTests.cs b/src/Tests.CSharp/SqliteCSharpTests.cs
index be035e8..5d17876 100644
--- a/src/Tests.CSharp/SqliteCSharpTests.cs
+++ b/src/Tests.CSharp/SqliteCSharpTests.cs
@@ -21,23 +21,93 @@ public static class SqliteCSharpTests
     {
         TestList("Query", new[]
         {
+            TestList("WhereByField", new[]
+            {
+                TestCase("succeeds when a logical operator is passed", () =>
+                {
+                    Expect.equal(Sqlite.Query.WhereByField(Field.GT("theField", 0), "@test"),
+                        "data->>'theField' > @test", "WHERE clause not correct");
+                }),
+                TestCase("succeeds when an existence operator is passed", () =>
+                {
+                    Expect.equal(Sqlite.Query.WhereByField(Field.NEX("thatField"), ""), "data->>'thatField' IS NULL",
+                        "WHERE clause not correct");
+                }),
+                TestCase("succeeds when the between operator is passed", () =>
+                {
+                    Expect.equal(Sqlite.Query.WhereByField(Field.BT("aField", 50, 99), "@range"),
+                        "data->>'aField' BETWEEN @rangemin AND @rangemax", "WHERE clause not correct");
+                })
+            }),
+            TestCase("WhereById succeeds", () =>
+            {
+                Expect.equal(Sqlite.Query.WhereById("@id"), "data->>'Id' = @id", "WHERE clause not correct");
+            }),
             TestCase("Definition.EnsureTable succeeds", () =>
             {
                 Expect.equal(Sqlite.Query.Definition.EnsureTable("tbl"),
                     "CREATE TABLE IF NOT EXISTS tbl (data TEXT NOT NULL)", "CREATE TABLE statement not correct");
             }),
+            TestCase("Update succeeds", () =>
+            {
+                Expect.equal(Sqlite.Query.Update("tbl"), "UPDATE tbl SET data = @data WHERE data->>'Id' = @id",
+                    "UPDATE full statement not correct");
+            }),
+            TestList("Count", new[]
+            {
+                TestCase("All succeeds", () =>
+                {
+                    Expect.equal(Sqlite.Query.Count.All("tbl"), "SELECT COUNT(*) AS it FROM tbl",
+                        "Count query not correct");
+                }),
+                TestCase("ByField succeeds", () =>
+                {
+                    Expect.equal(Sqlite.Query.Count.ByField("tbl", Field.EQ("thatField", 0)),
+                        "SELECT COUNT(*) AS it FROM tbl WHERE data->>'thatField' = @field",
+                        "JSON field text comparison count query not correct");
+                })
+            }),
+            TestList("Exists", new[]
+            {
+                TestCase("ById succeeds", () =>
+                {
+                    Expect.equal(Sqlite.Query.Exists.ById("tbl"),
+                        "SELECT EXISTS (SELECT 1 FROM tbl WHERE data->>'Id' = @id) AS it",
+                        "ID existence query not correct");
+                }),
+                TestCase("ByField succeeds", () =>
+                {
+                    Expect.equal(Sqlite.Query.Exists.ByField("tbl", Field.LT("Test", 0)),
+                        "SELECT EXISTS (SELECT 1 FROM tbl WHERE data->>'Test' < @field) AS it",
+                        "JSON field text comparison exists query not correct");
+                })
+            }),
+            TestList("Find", new[]
+            {
+                TestCase("ById succeeds", () =>
+                {
+                    Expect.equal(Sqlite.Query.Find.ById("tbl"), "SELECT data FROM tbl WHERE data->>'Id' = @id",
+                        "SELECT by ID query not correct");
+                }),
+                TestCase("ByField succeeds", () =>
+                {
+                    Expect.equal(Sqlite.Query.Find.ByField("tbl", Field.GE("Golf", 0)),
+                        "SELECT data FROM tbl WHERE data->>'Golf' >= @field",
+                        "SELECT by JSON comparison query not correct");
+                })
+            }),
             TestList("Patch", new[]
             {
                 TestCase("ById succeeds", () =>
                 {
                     Expect.equal(Sqlite.Query.Patch.ById("tbl"),
-                        "UPDATE tbl SET data = json_patch(data, json(@data)) WHERE data ->> 'Id' = @id",
+                        "UPDATE tbl SET data = json_patch(data, json(@data)) WHERE data->>'Id' = @id",
                         "UPDATE partial by ID statement not correct");
                 }),
                 TestCase("ByField succeeds", () =>
                 {
                     Expect.equal(Sqlite.Query.Patch.ByField("tbl", Field.NE("Part", 0)),
-                        "UPDATE tbl SET data = json_patch(data, json(@data)) WHERE data ->> 'Part' <> @field",
+                        "UPDATE tbl SET data = json_patch(data, json(@data)) WHERE data->>'Part' <> @field",
                         "UPDATE partial by JSON comparison query not correct");
                 })
             }),
@@ -46,16 +116,29 @@ public static class SqliteCSharpTests
                 TestCase("ById succeeds", () =>
                 {
                     Expect.equal(Sqlite.Query.RemoveFields.ById("tbl", new[] { new SqliteParameter("@name", "one") }),
-                        "UPDATE tbl SET data = json_remove(data, @name) WHERE data ->> 'Id' = @id",
+                        "UPDATE tbl SET data = json_remove(data, @name) WHERE data->>'Id' = @id",
                         "Remove field by ID query not correct");
                 }),
                 TestCase("ByField succeeds", () =>
                 {
                     Expect.equal(Sqlite.Query.RemoveFields.ByField("tbl", Field.LT("Fly", 0),
                             new[] { new SqliteParameter("@name0", "one"), new SqliteParameter("@name1", "two") }),
-                        "UPDATE tbl SET data = json_remove(data, @name0, @name1) WHERE data ->> 'Fly' < @field",
+                        "UPDATE tbl SET data = json_remove(data, @name0, @name1) WHERE data->>'Fly' < @field",
                         "Remove field by field query not correct");
                 })
+            }),
+            TestList("Delete", new[]
+            {
+                TestCase("ById succeeds", () =>
+                {
+                    Expect.equal(Sqlite.Query.Delete.ById("tbl"), "DELETE FROM tbl WHERE data->>'Id' = @id",
+                        "DELETE by ID query not correct");
+                }),
+                TestCase("ByField succeeds", () =>
+                {
+                    Expect.equal(Sqlite.Query.Delete.ByField("tbl", Field.NEX("gone")),
+                        "DELETE FROM tbl WHERE data->>'gone' IS NULL", "DELETE by JSON comparison query not correct");
+                })
             })
         }),
         TestList("Parameters", new[]
@@ -321,8 +404,8 @@ public static class SqliteCSharpTests
                 await using var db = await SqliteDb.BuildDb();
                 await LoadDocs();
 
-                var theCount = await Count.ByField(SqliteDb.TableName, Field.EQ("Value", "purple"));
-                Expect.equal(theCount, 2L, "There should have been 2 matching documents");
+                var theCount = await Count.ByField(SqliteDb.TableName, Field.BT("NumValue", 10, 20));
+                Expect.equal(theCount, 3L, "There should have been 3 matching documents");
             })
         }),
         TestList("Exists", new[]
diff --git a/src/Tests/CommonTests.fs b/src/Tests/CommonTests.fs
index dd0ac97..c5265ea 100644
--- a/src/Tests/CommonTests.fs
+++ b/src/Tests/CommonTests.fs
@@ -28,6 +28,9 @@ let all =
             test "NE succeeds" {
                 Expect.equal (string NE) "<>" "The not equal to operator was not correct"
             }
+            test "BT succeeds" {
+                Expect.equal (string BT) "BETWEEN" """The "between" operator was not correct"""
+            }
             test "EX succeeds" {
                 Expect.equal (string EX) "IS NOT NULL" """The "exists" operator was not correct"""
             }
@@ -35,27 +38,64 @@ let all =
                 Expect.equal (string NEX) "IS NULL" """The "not exists" operator was not correct"""
             }
         ]
+        testList "Field" [
+            test "EQ succeeds" {
+                let field = Field.EQ "Test" 14
+                Expect.equal field.Name "Test" "Field name incorrect"
+                Expect.equal field.Op EQ "Operator incorrect"
+                Expect.equal field.Value 14 "Value incorrect"
+            }
+            test "GT succeeds" {
+                let field = Field.GT "Great" "night"
+                Expect.equal field.Name "Great" "Field name incorrect"
+                Expect.equal field.Op GT "Operator incorrect"
+                Expect.equal field.Value "night" "Value incorrect"
+            }
+            test "GE succeeds" {
+                let field = Field.GE "Nice" 88L
+                Expect.equal field.Name "Nice" "Field name incorrect"
+                Expect.equal field.Op GE "Operator incorrect"
+                Expect.equal field.Value 88L "Value incorrect"
+            }
+            test "LT succeeds" {
+                let field = Field.LT "Lesser" "seven"
+                Expect.equal field.Name "Lesser" "Field name incorrect"
+                Expect.equal field.Op LT "Operator incorrect"
+                Expect.equal field.Value "seven" "Value incorrect"
+            }
+            test "LE succeeds" {
+                let field = Field.LE "Nobody" "KNOWS";
+                Expect.equal field.Name "Nobody" "Field name incorrect"
+                Expect.equal field.Op LE "Operator incorrect"
+                Expect.equal field.Value "KNOWS" "Value incorrect"
+            }
+            test "NE succeeds" {
+                let field = Field.NE "Park" "here"
+                Expect.equal field.Name "Park" "Field name incorrect"
+                Expect.equal field.Op NE "Operator incorrect"
+                Expect.equal field.Value "here" "Value incorrect"
+            }
+            test "BT succeeds" {
+                let field = Field.BT "Age" 18 49
+                Expect.equal field.Name "Age" "Field name incorrect"
+                Expect.equal field.Op BT "Operator incorrect"
+                Expect.sequenceEqual (field.Value :?> obj list) [ 18; 49 ] "Value incorrect"
+            }
+            test "EX succeeds" {
+                let field = Field.EX "Groovy"
+                Expect.equal field.Name "Groovy" "Field name incorrect"
+                Expect.equal field.Op EX "Operator incorrect"
+            }
+            test "NEX succeeds" {
+                let field = Field.NEX "Rad"
+                Expect.equal field.Name "Rad" "Field name incorrect"
+                Expect.equal field.Op NEX "Operator incorrect"
+            }
+        ]
         testList "Query" [
             test "selectFromTable succeeds" {
                 Expect.equal (Query.selectFromTable tbl) $"SELECT data FROM {tbl}" "SELECT statement not correct"
             }
-            test "whereById succeeds" {
-                Expect.equal (Query.whereById "@id") "data ->> 'Id' = @id" "WHERE clause not correct"
-            }
-            testList "whereByField" [
-                test "succeeds when a logical operator is passed" {
-                    Expect.equal
-                        (Query.whereByField (Field.GT "theField" 0) "@test")
-                        "data ->> 'theField' > @test"
-                        "WHERE clause not correct"
-                }
-                test "succeeds when an existence operator is passed" {
-                    Expect.equal
-                        (Query.whereByField (Field.NEX "thatField") "")
-                        "data ->> 'thatField' IS NULL"
-                        "WHERE clause not correct"
-                }
-            ]
             testList "Definition" [
                 test "ensureTableFor succeeds" {
                     Expect.equal
@@ -92,68 +132,9 @@ let all =
             test "save succeeds" {
                 Expect.equal
                     (Query.save tbl)
-                    $"INSERT INTO {tbl} VALUES (@data) ON CONFLICT ((data ->> 'Id')) DO UPDATE SET data = EXCLUDED.data"
+                    $"INSERT INTO {tbl} VALUES (@data) ON CONFLICT ((data->>'Id')) DO UPDATE SET data = EXCLUDED.data"
                     "INSERT ON CONFLICT UPDATE statement not correct"
             }
-            test "update succeeds" {
-                Expect.equal
-                    (Query.update tbl)
-                    $"UPDATE {tbl} SET data = @data WHERE data ->> 'Id' = @id"
-                    "UPDATE full statement not correct"
-            }
-            testList "Count" [
-                test "all succeeds" {
-                    Expect.equal (Query.Count.all tbl) $"SELECT COUNT(*) AS it FROM {tbl}" "Count query not correct"
-                }
-                test "byField succeeds" {
-                    Expect.equal
-                        (Query.Count.byField tbl (Field.EQ "thatField" 0))
-                        $"SELECT COUNT(*) AS it FROM {tbl} WHERE data ->> 'thatField' = @field"
-                        "JSON field text comparison count query not correct"
-                }
-            ]
-            testList "Exists" [
-                test "byId succeeds" {
-                    Expect.equal
-                        (Query.Exists.byId tbl)
-                        $"SELECT EXISTS (SELECT 1 FROM {tbl} WHERE data ->> 'Id' = @id) AS it"
-                        "ID existence query not correct"
-                }
-                test "byField succeeds" {
-                    Expect.equal
-                        (Query.Exists.byField tbl (Field.LT "Test" 0))
-                        $"SELECT EXISTS (SELECT 1 FROM {tbl} WHERE data ->> 'Test' < @field) AS it"
-                        "JSON field text comparison exists query not correct"
-                }
-            ]
-            testList "Find" [
-                test "byId succeeds" {
-                    Expect.equal
-                        (Query.Find.byId tbl)
-                        $"SELECT data FROM {tbl} WHERE data ->> 'Id' = @id"
-                        "SELECT by ID query not correct"
-                }
-                test "byField succeeds" {
-                    Expect.equal
-                        (Query.Find.byField tbl (Field.GE "Golf" 0))
-                        $"SELECT data FROM {tbl} WHERE data ->> 'Golf' >= @field"
-                        "SELECT by JSON comparison query not correct"
-                }
-            ]
-            testList "Delete" [
-                test "byId succeeds" {
-                    Expect.equal
-                        (Query.Delete.byId tbl)
-                        $"DELETE FROM {tbl} WHERE data ->> 'Id' = @id"
-                        "DELETE by ID query not correct"
-                }
-                test "byField succeeds" {
-                    Expect.equal
-                        (Query.Delete.byField tbl (Field.NEX "gone"))
-                        $"DELETE FROM {tbl} WHERE data ->> 'gone' IS NULL"
-                        "DELETE by JSON comparison query not correct"
-                }
-            ]
         ]
     ]
 
diff --git a/src/Tests/PostgresTests.fs b/src/Tests/PostgresTests.fs
index 29384ec..76405a1 100644
--- a/src/Tests/PostgresTests.fs
+++ b/src/Tests/PostgresTests.fs
@@ -34,12 +34,59 @@ let unitTests =
                     let paramList = addFieldParam "@field" (Field.EX "tacos") []
                     Expect.isEmpty paramList "There should not have been any parameters added"
                 }
+                test "succeeds when two parameters are added" {
+                    let paramList = addFieldParam "@field" (Field.BT "that" "eh" "zed") []
+                    Expect.hasLength paramList 2 "There should have been 2 parameters added"
+                    let min = paramList[0]
+                    Expect.equal (fst min) "@fieldmin" "Minimum field name not correct"
+                    match snd min with
+                    | SqlValue.Parameter value ->
+                        Expect.equal value.ParameterName "@fieldmin" "Minimum parameter name not correct"
+                        Expect.equal value.Value "eh" "Minimum parameter value not correct"
+                    | _ -> Expect.isTrue false "Minimum parameter was not a Parameter type"
+                    let max = paramList[1]
+                    Expect.equal (fst max) "@fieldmax" "Maximum field name not correct"
+                    match snd max with
+                    | SqlValue.Parameter value ->
+                        Expect.equal value.ParameterName "@fieldmax" "Maximum parameter name not correct"
+                        Expect.equal value.Value "zed" "Maximum parameter value not correct"
+                    | _ -> Expect.isTrue false "Maximum parameter was not a Parameter type"
+                }
             ]
             test "noParams succeeds" {
                 Expect.isEmpty noParams "The no-params sequence should be empty"
             }
         ]
         testList "Query" [
+            testList "whereByField" [
+                test "succeeds when a logical operator is passed" {
+                    Expect.equal
+                        (Query.whereByField (Field.GT "theField" 0) "@test")
+                        "data->>'theField' > @test"
+                        "WHERE clause not correct"
+                }
+                test "succeeds when an existence operator is passed" {
+                    Expect.equal
+                        (Query.whereByField (Field.NEX "thatField") "")
+                        "data->>'thatField' IS NULL"
+                        "WHERE clause not correct"
+                }
+                test "succeeds when a between operator is passed with numeric values" {
+                    Expect.equal
+                        (Query.whereByField (Field.BT "aField" 50 99) "@range")
+                        "(data->>'aField')::numeric BETWEEN @rangemin AND @rangemax"
+                        "WHERE clause not correct"
+                }
+                test "succeeds when a between operator is passed with non-numeric values" {
+                    Expect.equal
+                        (Query.whereByField (Field.BT "field0" "a" "b") "@alpha")
+                        "data->>'field0' BETWEEN @alphamin AND @alphamax"
+                        "WHERE clause not correct"
+                }
+            ]
+            test "whereById succeeds" {
+                Expect.equal (Query.whereById "@id") "data->>'Id' = @id" "WHERE clause not correct"
+            }
             testList "Definition" [
                 test "ensureTable succeeds" {
                     Expect.equal
@@ -61,6 +108,12 @@ let unitTests =
                         "CREATE INDEX statement not constructed correctly"
                 }
             ]
+            test "update succeeds" {
+                Expect.equal
+                    (Query.update PostgresDb.TableName)
+                    $"UPDATE {PostgresDb.TableName} SET data = @data WHERE data->>'Id' = @id"
+                    "UPDATE full statement not correct"
+            }
             test "whereDataContains succeeds" {
                 Expect.equal (Query.whereDataContains "@test") "data @> @test" "WHERE clause not correct"
             }
@@ -68,6 +121,18 @@ let unitTests =
                 Expect.equal (Query.whereJsonPathMatches "@path") "data @? @path::jsonpath" "WHERE clause not correct"
             }
             testList "Count" [
+                test "all succeeds" {
+                    Expect.equal
+                        (Query.Count.all PostgresDb.TableName)
+                        $"SELECT COUNT(*) AS it FROM {PostgresDb.TableName}"
+                        "Count query not correct"
+                }
+                test "byField succeeds" {
+                    Expect.equal
+                        (Query.Count.byField PostgresDb.TableName (Field.EQ "thatField" 0))
+                        $"SELECT COUNT(*) AS it FROM {PostgresDb.TableName} WHERE data->>'thatField' = @field"
+                        "JSON field text comparison count query not correct"
+                }
                 test "byContains succeeds" {
                     Expect.equal
                         (Query.Count.byContains PostgresDb.TableName)
@@ -82,6 +147,18 @@ let unitTests =
                 }
             ]
             testList "Exists" [
+                test "byId succeeds" {
+                    Expect.equal
+                        (Query.Exists.byId PostgresDb.TableName)
+                        $"SELECT EXISTS (SELECT 1 FROM {PostgresDb.TableName} WHERE data->>'Id' = @id) AS it"
+                        "ID existence query not correct"
+                }
+                test "byField succeeds" {
+                    Expect.equal
+                        (Query.Exists.byField PostgresDb.TableName (Field.LT "Test" 0))
+                        $"SELECT EXISTS (SELECT 1 FROM {PostgresDb.TableName} WHERE data->>'Test' < @field) AS it"
+                        "JSON field text comparison exists query not correct"
+                }
                 test "byContains succeeds" {
                     Expect.equal
                         (Query.Exists.byContains PostgresDb.TableName)
@@ -96,6 +173,18 @@ let unitTests =
                 }
             ]
             testList "Find" [
+                test "byId succeeds" {
+                    Expect.equal
+                        (Query.Find.byId PostgresDb.TableName)
+                        $"SELECT data FROM {PostgresDb.TableName} WHERE data->>'Id' = @id"
+                        "SELECT by ID query not correct"
+                }
+                test "byField succeeds" {
+                    Expect.equal
+                        (Query.Find.byField PostgresDb.TableName (Field.GE "Golf" 0))
+                        $"SELECT data FROM {PostgresDb.TableName} WHERE data->>'Golf' >= @field"
+                        "SELECT by JSON comparison query not correct"
+                }
                 test "byContains succeeds" {
                     Expect.equal
                         (Query.Find.byContains PostgresDb.TableName)
@@ -113,13 +202,13 @@ let unitTests =
                 test "byId succeeds" {
                     Expect.equal
                         (Query.Patch.byId PostgresDb.TableName)
-                        $"UPDATE {PostgresDb.TableName} SET data = data || @data WHERE data ->> 'Id' = @id"
+                        $"UPDATE {PostgresDb.TableName} SET data = data || @data WHERE data->>'Id' = @id"
                         "UPDATE partial by ID statement not correct"
                 }
                 test "byField succeeds" {
                     Expect.equal
                         (Query.Patch.byField PostgresDb.TableName (Field.LT "Snail" 0))
-                        $"UPDATE {PostgresDb.TableName} SET data = data || @data WHERE data ->> 'Snail' < @field"
+                        $"UPDATE {PostgresDb.TableName} SET data = data || @data WHERE data->>'Snail' < @field"
                         "UPDATE partial by ID statement not correct"
                 }
                 test "byContains succeeds" {
@@ -139,13 +228,13 @@ let unitTests =
                 test "byId succeeds" {
                     Expect.equal
                         (Query.RemoveFields.byId "tbl")
-                        "UPDATE tbl SET data = data - @name WHERE data ->> 'Id' = @id"
+                        "UPDATE tbl SET data = data - @name WHERE data->>'Id' = @id"
                         "Remove field by ID query not correct"
                 }
                 test "byField succeeds" {
                     Expect.equal
                         (Query.RemoveFields.byField "tbl" (Field.LT "Fly" 0))
-                        "UPDATE tbl SET data = data - @name WHERE data ->> 'Fly' < @field"
+                        "UPDATE tbl SET data = data - @name WHERE data->>'Fly' < @field"
                         "Remove field by field query not correct"
                 }
                 test "byContains succeeds" {
@@ -162,6 +251,18 @@ let unitTests =
                 }
             ]
             testList "Delete" [
+                test "byId succeeds" {
+                    Expect.equal
+                        (Query.Delete.byId PostgresDb.TableName)
+                        $"DELETE FROM {PostgresDb.TableName} WHERE data->>'Id' = @id"
+                        "DELETE by ID query not correct"
+                }
+                test "byField succeeds" {
+                    Expect.equal
+                        (Query.Delete.byField PostgresDb.TableName (Field.NEX "gone"))
+                        $"DELETE FROM {PostgresDb.TableName} WHERE data->>'gone' IS NULL"
+                        "DELETE by JSON comparison query not correct"
+                }
                 test "byContains succeeds" {
                     Expect.equal (Query.Delete.byContains PostgresDb.TableName)
                         $"DELETE FROM {PostgresDb.TableName} WHERE data @> @criteria"
@@ -391,8 +492,8 @@ let integrationTests =
                 use db = PostgresDb.BuildDb()
                 do! loadDocs ()
                 
-                let! theCount = Count.byField PostgresDb.TableName (Field.EQ "Value" "purple")
-                Expect.equal theCount 2 "There should have been 2 matching documents"
+                let! theCount = Count.byField PostgresDb.TableName (Field.BT "NumValue" 10 20)
+                Expect.equal theCount 3 "There should have been 3 matching documents"
             }
             testTask "byContains succeeds" {
                 use db = PostgresDb.BuildDb()
diff --git a/src/Tests/SqliteTests.fs b/src/Tests/SqliteTests.fs
index 9063d2e..c32ba1b 100644
--- a/src/Tests/SqliteTests.fs
+++ b/src/Tests/SqliteTests.fs
@@ -12,23 +12,91 @@ open Types
 let unitTests =
     testList "Unit" [
         testList "Query" [
+            testList "whereByField" [
+                test "succeeds when a logical operator is passed" {
+                    Expect.equal
+                        (Query.whereByField (Field.GT "theField" 0) "@test")
+                        "data->>'theField' > @test"
+                        "WHERE clause not correct"
+                }
+                test "succeeds when an existence operator is passed" {
+                    Expect.equal
+                        (Query.whereByField (Field.NEX "thatField") "")
+                        "data->>'thatField' IS NULL"
+                        "WHERE clause not correct"
+                }
+                test "succeeds when the between operator is passed" {
+                    Expect.equal
+                        (Query.whereByField (Field.BT "aField" 50 99) "@range")
+                        "data->>'aField' BETWEEN @rangemin AND @rangemax"
+                        "WHERE clause not correct"
+                }
+            ]
+            test "whereById succeeds" {
+                Expect.equal (Query.whereById "@id") "data->>'Id' = @id" "WHERE clause not correct"
+            }
             test "Definition.ensureTable succeeds" {
                 Expect.equal
                     (Query.Definition.ensureTable "tbl")
                     "CREATE TABLE IF NOT EXISTS tbl (data TEXT NOT NULL)"
                     "CREATE TABLE statement not correct"
             }
+            test "update succeeds" {
+                Expect.equal
+                    (Query.update "tbl")
+                    "UPDATE tbl SET data = @data WHERE data->>'Id' = @id"
+                    "UPDATE full statement not correct"
+            }
+            testList "Count" [
+                test "all succeeds" {
+                    Expect.equal (Query.Count.all "tbl") $"SELECT COUNT(*) AS it FROM tbl" "Count query not correct"
+                }
+                test "byField succeeds" {
+                    Expect.equal
+                        (Query.Count.byField "tbl" (Field.EQ "thatField" 0))
+                        "SELECT COUNT(*) AS it FROM tbl WHERE data->>'thatField' = @field"
+                        "JSON field text comparison count query not correct"
+                }
+            ]
+            testList "Exists" [
+                test "byId succeeds" {
+                    Expect.equal
+                        (Query.Exists.byId "tbl")
+                        "SELECT EXISTS (SELECT 1 FROM tbl WHERE data->>'Id' = @id) AS it"
+                        "ID existence query not correct"
+                }
+                test "byField succeeds" {
+                    Expect.equal
+                        (Query.Exists.byField "tbl" (Field.LT "Test" 0))
+                        "SELECT EXISTS (SELECT 1 FROM tbl WHERE data->>'Test' < @field) AS it"
+                        "JSON field text comparison exists query not correct"
+                }
+            ]
+            testList "Find" [
+                test "byId succeeds" {
+                    Expect.equal
+                        (Query.Find.byId "tbl")
+                        "SELECT data FROM tbl WHERE data->>'Id' = @id"
+                        "SELECT by ID query not correct"
+                }
+                test "byField succeeds" {
+                    Expect.equal
+                        (Query.Find.byField "tbl" (Field.GE "Golf" 0))
+                        "SELECT data FROM tbl WHERE data->>'Golf' >= @field"
+                        "SELECT by JSON comparison query not correct"
+                }
+            ]
             testList "Patch" [
                 test "byId succeeds" {
                     Expect.equal
                         (Query.Patch.byId "tbl")
-                        "UPDATE tbl SET data = json_patch(data, json(@data)) WHERE data ->> 'Id' = @id"
+                        "UPDATE tbl SET data = json_patch(data, json(@data)) WHERE data->>'Id' = @id"
                         "UPDATE partial by ID statement not correct"
                 }
                 test "byField succeeds" {
                     Expect.equal
                         (Query.Patch.byField "tbl" (Field.NE "Part" 0))
-                        "UPDATE tbl SET data = json_patch(data, json(@data)) WHERE data ->> 'Part' <> @field"
+                        "UPDATE tbl SET data = json_patch(data, json(@data)) WHERE data->>'Part' <> @field"
                         "UPDATE partial by JSON comparison query not correct"
                 }
             ]
@@ -36,7 +104,7 @@ let unitTests =
                 test "byId succeeds" {
                     Expect.equal
                         (Query.RemoveFields.byId "tbl" [ SqliteParameter("@name", "one") ])
-                        "UPDATE tbl SET data = json_remove(data, @name) WHERE data ->> 'Id' = @id"
+                        "UPDATE tbl SET data = json_remove(data, @name) WHERE data->>'Id' = @id"
                         "Remove field by ID query not correct"
                 }
                 test "byField succeeds" {
@@ -45,10 +113,24 @@ let unitTests =
                              "tbl"
                              (Field.GT "Fly" 0)
                              [ SqliteParameter("@name0", "one"); SqliteParameter("@name1", "two") ])
-                        "UPDATE tbl SET data = json_remove(data, @name0, @name1) WHERE data ->> 'Fly' > @field"
+                        "UPDATE tbl SET data = json_remove(data, @name0, @name1) WHERE data->>'Fly' > @field"
                         "Remove field by field query not correct"
                 }
             ]
+            testList "Delete" [
+                test "byId succeeds" {
+                    Expect.equal
+                        (Query.Delete.byId "tbl")
+                        "DELETE FROM tbl WHERE data->>'Id' = @id"
+                        "DELETE by ID query not correct"
+                }
+                test "byField succeeds" {
+                    Expect.equal
+                        (Query.Delete.byField "tbl" (Field.NEX "gone"))
+                        "DELETE FROM tbl WHERE data->>'gone' IS NULL"
+                        "DELETE by JSON comparison query not correct"
+                }
+            ]
         ]
         testList "Parameters" [
             test "idParam succeeds" {
@@ -303,8 +385,8 @@ let integrationTests =
                 use! db = SqliteDb.BuildDb()
                 do! loadDocs ()
         
-                let! theCount = Count.byField SqliteDb.TableName (Field.EQ "Value" "purple")
-                Expect.equal theCount 2L "There should have been 2 matching documents"
+                let! theCount = Count.byField SqliteDb.TableName (Field.BT "NumValue" 10 20)
+                Expect.equal theCount 3L "There should have been 3 matching documents"
             }
         ]
         testList "Exists" [
-- 
2.45.1


From d7c8cae0c785c1849e2ba4a62e59d2fc537ef774 Mon Sep 17 00:00:00 2001
From: "Daniel J. Summers" <daniel@bitbadger.solutions>
Date: Wed, 5 Jun 2024 21:43:03 -0400
Subject: [PATCH 3/3] Add tests for alpha BT values

- Update deps
- Update release notes for v3.1
---
 src/Common/BitBadger.Documents.Common.fsproj           |  3 ++-
 src/Directory.Build.props                              |  1 +
 src/Postgres/BitBadger.Documents.Postgres.fsproj       |  1 +
 src/Sqlite/BitBadger.Documents.Sqlite.fsproj           |  3 ++-
 .../BitBadger.Documents.Tests.CSharp.csproj            |  2 +-
 src/Tests.CSharp/PostgresCSharpTests.cs                | 10 +++++++++-
 src/Tests.CSharp/SqliteCSharpTests.cs                  | 10 +++++++++-
 src/Tests/BitBadger.Documents.Tests.fsproj             |  3 ++-
 src/Tests/PostgresTests.fs                             |  9 ++++++++-
 src/Tests/SqliteTests.fs                               |  9 ++++++++-
 10 files changed, 43 insertions(+), 8 deletions(-)

diff --git a/src/Common/BitBadger.Documents.Common.fsproj b/src/Common/BitBadger.Documents.Common.fsproj
index bded7fe..6e91b44 100644
--- a/src/Common/BitBadger.Documents.Common.fsproj
+++ b/src/Common/BitBadger.Documents.Common.fsproj
@@ -13,7 +13,8 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="FSharp.SystemTextJson" Version="1.2.42" />
+    <PackageReference Include="FSharp.SystemTextJson" Version="1.3.13" />
+    <PackageReference Update="FSharp.Core" Version="8.0.300" />
   </ItemGroup>
 
 </Project>
diff --git a/src/Directory.Build.props b/src/Directory.Build.props
index 274bd5c..ea70aa3 100644
--- a/src/Directory.Build.props
+++ b/src/Directory.Build.props
@@ -6,6 +6,7 @@
     <AssemblyVersion>3.1.0.0</AssemblyVersion>
     <FileVersion>3.1.0.0</FileVersion>
     <VersionPrefix>3.1.0</VersionPrefix>
+    <PackageReleaseNotes>Add BT (between) operator; drop .NET 7 support</PackageReleaseNotes>
     <Authors>danieljsummers</Authors>
     <Company>Bit Badger Solutions</Company>
     <PackageReadmeFile>README.md</PackageReadmeFile>
diff --git a/src/Postgres/BitBadger.Documents.Postgres.fsproj b/src/Postgres/BitBadger.Documents.Postgres.fsproj
index a8eb158..316d2ae 100644
--- a/src/Postgres/BitBadger.Documents.Postgres.fsproj
+++ b/src/Postgres/BitBadger.Documents.Postgres.fsproj
@@ -15,6 +15,7 @@
 
   <ItemGroup>
     <PackageReference Include="Npgsql.FSharp" Version="5.7.0" />
+    <PackageReference Update="FSharp.Core" Version="8.0.300" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/src/Sqlite/BitBadger.Documents.Sqlite.fsproj b/src/Sqlite/BitBadger.Documents.Sqlite.fsproj
index b6009bb..14a006d 100644
--- a/src/Sqlite/BitBadger.Documents.Sqlite.fsproj
+++ b/src/Sqlite/BitBadger.Documents.Sqlite.fsproj
@@ -14,7 +14,8 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Data.Sqlite" Version="8.0.1" />
+    <PackageReference Include="Microsoft.Data.Sqlite" Version="8.0.6" />
+    <PackageReference Update="FSharp.Core" Version="8.0.300" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/src/Tests.CSharp/BitBadger.Documents.Tests.CSharp.csproj b/src/Tests.CSharp/BitBadger.Documents.Tests.CSharp.csproj
index 489d298..951b6d7 100644
--- a/src/Tests.CSharp/BitBadger.Documents.Tests.CSharp.csproj
+++ b/src/Tests.CSharp/BitBadger.Documents.Tests.CSharp.csproj
@@ -12,7 +12,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Expecto" Version="10.1.0" />
+    <PackageReference Include="Expecto" Version="10.2.1" />
     <PackageReference Include="ThrowawayDb.Postgres" Version="1.4.0" />
   </ItemGroup>
 
diff --git a/src/Tests.CSharp/PostgresCSharpTests.cs b/src/Tests.CSharp/PostgresCSharpTests.cs
index 8f892a8..9ddd720 100644
--- a/src/Tests.CSharp/PostgresCSharpTests.cs
+++ b/src/Tests.CSharp/PostgresCSharpTests.cs
@@ -549,7 +549,7 @@ public static class PostgresCSharpTests
                 var theCount = await Count.All(PostgresDb.TableName);
                 Expect.equal(theCount, 5, "There should have been 5 matching documents");
             }),
-            TestCase("ByField succeeds", async () =>
+            TestCase("ByField succeeds for numeric range", async () =>
             {
                 await using var db = PostgresDb.BuildDb();
                 await LoadDocs();
@@ -557,6 +557,14 @@ public static class PostgresCSharpTests
                 var theCount = await Count.ByField(PostgresDb.TableName, Field.BT("NumValue", 10, 20));
                 Expect.equal(theCount, 3, "There should have been 3 matching documents");
             }),
+            TestCase("ByField succeeds for non-numeric range", async () =>
+            {
+                await using var db = PostgresDb.BuildDb();
+                await LoadDocs();
+
+                var theCount = await Count.ByField(PostgresDb.TableName, Field.BT("Value", "aardvark", "apple"));
+                Expect.equal(theCount, 1, "There should have been 1 matching document");
+            }),
             TestCase("ByContains succeeds", async () =>
             {
                 await using var db = PostgresDb.BuildDb();
diff --git a/src/Tests.CSharp/SqliteCSharpTests.cs b/src/Tests.CSharp/SqliteCSharpTests.cs
index 5d17876..6f38664 100644
--- a/src/Tests.CSharp/SqliteCSharpTests.cs
+++ b/src/Tests.CSharp/SqliteCSharpTests.cs
@@ -399,13 +399,21 @@ public static class SqliteCSharpTests
                 var theCount = await Count.All(SqliteDb.TableName);
                 Expect.equal(theCount, 5L, "There should have been 5 matching documents");
             }),
-            TestCase("ByField succeeds", async () =>
+            TestCase("ByField succeeds for numeric range", async () =>
             {
                 await using var db = await SqliteDb.BuildDb();
                 await LoadDocs();
 
                 var theCount = await Count.ByField(SqliteDb.TableName, Field.BT("NumValue", 10, 20));
                 Expect.equal(theCount, 3L, "There should have been 3 matching documents");
+            }),
+            TestCase("ByField succeeds for non-numeric range", async () =>
+            {
+                await using var db = await SqliteDb.BuildDb();
+                await LoadDocs();
+
+                var theCount = await Count.ByField(SqliteDb.TableName, Field.BT("Value", "aardvark", "apple"));
+                Expect.equal(theCount, 1L, "There should have been 1 matching document");
             })
         }),
         TestList("Exists", new[]
diff --git a/src/Tests/BitBadger.Documents.Tests.fsproj b/src/Tests/BitBadger.Documents.Tests.fsproj
index 9e753ad..90c8b65 100644
--- a/src/Tests/BitBadger.Documents.Tests.fsproj
+++ b/src/Tests/BitBadger.Documents.Tests.fsproj
@@ -15,7 +15,8 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Expecto" Version="10.1.0" />
+    <PackageReference Include="Expecto" Version="10.2.1" />
+    <PackageReference Update="FSharp.Core" Version="8.0.300" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/src/Tests/PostgresTests.fs b/src/Tests/PostgresTests.fs
index 76405a1..6849b8b 100644
--- a/src/Tests/PostgresTests.fs
+++ b/src/Tests/PostgresTests.fs
@@ -488,13 +488,20 @@ let integrationTests =
                 let! theCount = Count.all PostgresDb.TableName
                 Expect.equal theCount 5 "There should have been 5 matching documents"
             }
-            testTask "byField succeeds" {
+            testTask "byField succeeds for numeric range" {
                 use db = PostgresDb.BuildDb()
                 do! loadDocs ()
                 
                 let! theCount = Count.byField PostgresDb.TableName (Field.BT "NumValue" 10 20)
                 Expect.equal theCount 3 "There should have been 3 matching documents"
             }
+            testTask "byField succeeds for non-numeric range" {
+                use db = PostgresDb.BuildDb()
+                do! loadDocs ()
+                
+                let! theCount = Count.byField PostgresDb.TableName (Field.BT "Value" "aardvark" "apple")
+                Expect.equal theCount 1 "There should have been 1 matching document"
+            }
             testTask "byContains succeeds" {
                 use db = PostgresDb.BuildDb()
                 do! loadDocs ()
diff --git a/src/Tests/SqliteTests.fs b/src/Tests/SqliteTests.fs
index c32ba1b..6d97893 100644
--- a/src/Tests/SqliteTests.fs
+++ b/src/Tests/SqliteTests.fs
@@ -381,13 +381,20 @@ let integrationTests =
                 let! theCount = Count.all SqliteDb.TableName
                 Expect.equal theCount 5L "There should have been 5 matching documents"
             }
-            testTask "byField succeeds" {
+            testTask "byField succeeds for a numeric range" {
                 use! db = SqliteDb.BuildDb()
                 do! loadDocs ()
         
                 let! theCount = Count.byField SqliteDb.TableName (Field.BT "NumValue" 10 20)
                 Expect.equal theCount 3L "There should have been 3 matching documents"
             }
+            testTask "byField succeeds for a non-numeric range" {
+                use! db = SqliteDb.BuildDb()
+                do! loadDocs ()
+        
+                let! theCount = Count.byField SqliteDb.TableName (Field.BT "Value" "aardvark" "apple")
+                Expect.equal theCount 1L "There should have been 1 matching document"
+            }
         ]
         testList "Exists" [
             testList "byId" [
-- 
2.45.1