Add statements debug sql support.

sqlbuilder/delete_statement_test.go

@@ -1,6 +1,7 @@
 package sqlbuilder
 
 import (
+	"fmt"
 	"gotest.tools/assert"
 	"testing"
 )
@@ -14,5 +15,10 @@ func TestDeleteWithWhere(t *testing.T) {
 	sql, _, err := table1.DELETE().WHERE(table1Col1.EqL(1)).Sql()
 	assert.NilError(t, err)
 
-	assert.Equal(t, sql, "DELETE FROM db.table1 WHERE table1.col1 = $1;")
+	fmt.Println(sql)
+	expectedSql := `
+DELETE FROM db.table1
+WHERE table1.col1 = $1;
+`
+	assert.Equal(t, sql, expectedSql)
 }