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Don't crash if group by attrib is empty string.

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This commit is contained in:
Daniel Nichter
2012-07-11 15:46:58 -06:00
parent 6269b196a3
commit d8b0192495
7 changed files with 84 additions and 12 deletions
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15
t/lib/samples/slowlogs/slow055.txt Normal file
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@@ -0,0 +1,15 @@
# User@Host: meow[meow] @ [1.2.3.8]
# Thread_id: 5 Schema:
# Query_time: 0.000002 Lock_time: 0.000000 Rows_sent: 0 Rows_examined: 0
# No InnoDB statistics available for this query
# administrator command: Quit;
# User@Host: meow[meow] @ [1.2.3.8]
# Thread_id: 6 Schema:
# Query_time: 0.000899 Lock_time: 0.000000 Rows_sent: 0 Rows_examined: 0
# No InnoDB statistics available for this query
SET NAMES utf8;
# User@Host: meow[meow] @ [1.2.3.8]
# Thread_id: 6 Schema:
# Query_time: 0.018799 Lock_time: 0.009453 Rows_sent: 0 Rows_examined: 0
# No InnoDB statistics available for this query
SELECT MIN(id),MAX(id) FROM tbl;