publicstaticfinalStringMETADATA_QUERY="SELECT `TABLE_NAME`,`COLUMN_NAME`,`COLUMN_DEFAULT`,`DATA_TYPE`,`EXTRA`,`IS_NULLABLE` FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = ?";
privatestaticfinalStringMETADATA_QUERY="SELECT c.`TABLE_NAME`,c.`COLUMN_NAME`,c.`COLUMN_DEFAULT`,c.`DATA_TYPE`,c.`EXTRA`,c.`IS_NULLABLE`,s.INDEX_NAME FROM INFORMATION_SCHEMA.COLUMNS c left join INFORMATION_SCHEMA.STATISTICS s on c.TABLE_SCHEMA = s.TABLE_SCHEMA and c.TABLE_NAME = s.TABLE_NAME and c.COLUMN_NAME = s.COLUMN_NAME WHERE c.TABLE_SCHEMA = ?";