Add support for additional array types.

postgres/expressions.go

@@ -2,33 +2,24 @@ package postgres
 
 import "github.com/go-jet/jet/v2/internal/jet"
 
-// Expression is common interface for all expressions.
+// Expression is a common interface for all expressions.
 // Can be Bool, Int, Float, String, Date, Time, Timez, Timestamp or Timestampz expressions.
 type Expression = jet.Expression
 
 // BoolExpression interface
 type BoolExpression = jet.BoolExpression
 
-// BoolArrayExpression interface
-type BoolArrayExpression = jet.ArrayExpression[BoolExpression]
-
 // StringExpression interface
 type StringExpression = jet.StringExpression
 
 type ByteaExpression = jet.BlobExpression
 
-// StringArrayExpression interface
-type StringArrayExpression = jet.ArrayExpression[StringExpression]
-
 // NumericExpression interface
 type NumericExpression = jet.NumericExpression
 
 // IntegerExpression interface
 type IntegerExpression = jet.IntegerExpression
 
-// IntegerArrayExpression interface
-type IntegerArrayExpression = jet.ArrayExpression[IntegerExpression]
-
 // FloatExpression is interface
 type FloatExpression = jet.FloatExpression
 
@@ -185,3 +176,13 @@ var NewEnumValue = jet.NewEnumValue
 
 // BinaryOperator can be used to use custom or unsupported operators that take two operands.
 var BinaryOperator = jet.BinaryOperator
+
+// Array is a common template interface for all array expressions.
+type Array[T Expression] jet.Array[T]
+
+// ArrayExp serves as a wrapper for an arbitrary expression, treating it as an array expression of type T.
+// This enables the Go compiler to interpret any expression as an array expression of type T.
+// Note: This does not modify the generated SQL builder output by adding an SQL CAST operation.
+func ArrayExp[T Expression](exp Expression) Array[T] {
+	return jet.ArrayExp[T](exp)
+}