fix(pgsql): use "1=1" instead of integer 1 in Test_TX_Delete condition

PostgreSQL does not accept `WHERE 1` (integer as boolean condition).
MySQL auto-casts `1` to true, but PgSQL requires an explicit boolean
expression. Use `"1=1"` which is valid standard SQL across all dialects.

ref gogf#4689

Author: lingcoder

contrib/drivers/pgsql/pgsql_z_unit_transaction_test.go

@@ -1697,7 +1697,8 @@ func Test_TX_Delete(t *testing.T) {
 		tx, err := db.Begin(ctx)
 		t.AssertNil(err)
 
-		_, err = tx.Delete(table, 1)
+		// PgSQL does not accept "WHERE 1" (integer as boolean); use "1=1" instead.
+		_, err = tx.Delete(table, "1=1")
 		t.AssertNil(err)
 
 		err = tx.Commit()
@@ -1716,7 +1717,8 @@ func Test_TX_Delete(t *testing.T) {
 		tx, err := db.Begin(ctx)
 		t.AssertNil(err)
 
-		_, err = tx.Delete(table, 1)
+		// PgSQL does not accept "WHERE 1" (integer as boolean); use "1=1" instead.
+		_, err = tx.Delete(table, "1=1")
 		t.AssertNil(err)
 
 		n, err := tx.Model(table).Count()