We're updating the issue view to help you get more done. 

GROUP_CONCAT not showing any output with group_concat_max_len >= 4Gb

Description

Every query using a GROUP_CONCAT is showing an empty resultset with no NULL values on the column it should concatenate.

A simple "select studentId, group_concat(grades) from studentGrades where sutdentId=1" is giving a wrong output with the above description.

Environment

Debian GNU/Linux 7.1 (wheezy)

Status

Assignee

Unassigned

Reporter

Lennart Weijl

Fix versions

Affects versions

10.0.3
5.5.31
5.1.67
5.2.14
5.3.12

Priority

Minor