PREHOOK: query: drop table aa
PREHOOK: type: DROPTABLE
POSTHOOK: query: drop table aa
POSTHOOK: type: DROPTABLE
PREHOOK: query: create table aa ( test STRING )
  ROW FORMAT SERDE 'org.apache.hadoop.hive.contrib.serde2.RegexSerDe'
  WITH SERDEPROPERTIES ("input.regex" = "[^\\](.*)", "output.format.string" = "$1s")
PREHOOK: type: CREATETABLE
FAILED: Error in metadata: java.util.regex.PatternSyntaxException: Unclosed character class near index 7
[^\](.*)
       ^
FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.DDLTask