Add validation to field param name

src/test/kotlin/FieldTest.kt

@@ -530,6 +530,12 @@ class FieldTest {
         assertNull(field.qualifier, "The qualifier should have been null")
     }
 
+    @Test
+    @DisplayName("static constructors fail for invalid parameter name")
+    fun staticCtorsFailOnParamName() {
+        assertThrows<DocumentException> { Field.equal("a", "b", "that ain't it, Jack...") }
+    }
+
     @Test
     @DisplayName("nameToPath creates a simple PostgreSQL SQL name")
     fun nameToPathPostgresSimpleSQL() =