Column information in error message is missing.

[SunRunAway]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. What did you do?
   If possible, provide a recipe for reproducing the error.

SELECT  `col_float_signed` AS field1  FROM `table50_int_autoinc` GROUP BY GET_FORMAT( DATETIME, 'ISO' );

2. What did you expect to see?

ERROR 1055 (42000): Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'randgen_test.table50_int_autoinc.col_float_signed' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by

3. What did you see instead?

The column information is missing.

ERROR 1055 (42000): Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column '' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by

4. What version of TiDB are you using (tidb-server -V or run select tidb_version(); on TiDB)?

fdbc149

[gaoxingliang]

I'm working on this issue. and I will add some UT cases for this