type analysers for mysql, postgre

packages/engines/mysql/sql/columns.js

@@ -4,10 +4,10 @@ select
 	COLUMN_NAME as columnName,
 	IS_NULLABLE as isNullable,
 	DATA_TYPE as dataType,
-	CHARACTER_MAXIMUM_LENGTH,
-	NUMERIC_PRECISION,
-	NUMERIC_SCALE,
-	COLUMN_DEFAULT,
+	CHARACTER_MAXIMUM_LENGTH as charMaxLength,
+	NUMERIC_PRECISION as numericPrecision,
+	NUMERIC_SCALE as numericScale,
+	COLUMN_DEFAULT as defaultValue,
 	EXTRA as extra
 from INFORMATION_SCHEMA.COLUMNS
 where TABLE_SCHEMA = '#DATABASE#' and TABLE_NAME =[OBJECT_NAME_CONDITION]