Fold work from SQLite into common

- Checkpoint before common moved to top level

src/common/src/test/kotlin/QueryTest.kt

@@ -67,14 +67,30 @@ class QueryTest {
     @Test
     @DisplayName("insert generates correctly")
     fun insert() {
-        assertEquals("INSERT INTO $tbl VALUES (:data)", Query.insert(tbl), "INSERT statement not constructed correctly")
+        try {
+            Configuration.connectionString = "postgresql"
+            assertEquals(
+                "INSERT INTO $tbl VALUES (:data)",
+                Query.insert(tbl),
+                "INSERT statement not constructed correctly"
+            )
+        } finally {
+            Configuration.connectionString = null
+        }
     }
 
     @Test
     @DisplayName("save generates correctly")
     fun save() {
-        assertEquals("INSERT INTO $tbl VALUES (:data) ON CONFLICT ((data->>'id')) DO UPDATE SET data = EXCLUDED.data",
-            Query.save(tbl), "INSERT ON CONFLICT UPDATE statement not constructed correctly")
+        try {
+            Configuration.connectionString = "postgresql"
+            assertEquals(
+                "INSERT INTO $tbl VALUES (:data) ON CONFLICT ((data->>'id')) DO UPDATE SET data = EXCLUDED.data",
+                Query.save(tbl), "INSERT ON CONFLICT UPDATE statement not constructed correctly"
+            )
+        } finally {
+            Configuration.connectionString = null
+        }
     }
 
     @Test