Column definition does not support 'DEFAULT NOW()' to set the defaul value? describe: my DDL sql: ```create table if not exists testdb.detail( `created_time`DATETIME NOT NULL DEFAULT NOW() ,`name` VARCHAR(30) NOT NULL ..... ``` I get this Exception: Error Failed to execute sql: org.apache.doris.common.AnalysisException: errCode = 2, detailMessage = Syntax error in line 2: `created` DATETIME NOT NULL DEFAULT NOW() ^ Encountered: IDENTIFIER Expected
