Add support for Row expression.

postgres/expressions.go

@@ -36,6 +36,9 @@ type TimestampExpression = jet.TimestampExpression
 // TimestampzExpression interface
 type TimestampzExpression = jet.TimestampzExpression
 
+// RowExpression interface
+type RowExpression = jet.RowExpression
+
 // DateRange Expression interface
 type DateRange = jet.Range[DateExpression]
 
@@ -99,6 +102,11 @@ var TimestampExp = jet.TimestampExp
 // Does not add sql cast to generated sql builder output.
 var TimestampzExp = jet.TimestampzExp
 
+// RowExp serves as a wrapper for an arbitrary expression, treating it as a row expression.
+// This enables the Go compiler to interpret any expression as a row expression
+// Note: This does not modify the generated SQL builder output by adding a SQL CAST operation.
+var RowExp = jet.RowExp
+
 // RangeExp is range expression wrapper around arbitrary expression.
 // Allows go compiler to see any expression as range expression.
 // Does not add sql cast to generated sql builder output.

postgres/literal.go

@@ -57,6 +57,16 @@ func Uint64(value uint64) IntegerExpression {
 // Float creates new float literal expression
 var Float = jet.Float
 
+// Float32 is constructor for 32 bit float literals
+func Float32(value float32) FloatExpression {
+	return CAST(jet.Literal(value)).AS_REAL()
+}
+
+// Float64 is constructor for 64 bit float literals
+func Float64(value float64) FloatExpression {
+	return CAST(jet.Literal(value)).AS_DOUBLE()
+}
+
 // Decimal creates new float literal expression
 var Decimal = jet.Decimal