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Bug#30897 GROUP_CONCAT returns extra comma on empty fields

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The fix is a copy of Martin Friebe's suggestion.
added testing for no_appended which will be false if anything,
including the empty string is in result


mysql-test/r/func_gconcat.result:
  test result
mysql-test/t/func_gconcat.test:
  test case
sql/item_sum.cc:
  added testing for no_appended which will be False if anything,
  including the empty string is in result
This commit is contained in:
unknown
2007-10-29 14:53:10 +04:00
parent 95e66de205
commit d5b1d6205b
3 changed files with 19 additions and 1 deletions
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9
mysql-test/t/func_gconcat.test
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@ -590,4 +590,13 @@ select group_concat(distinct a, c order by a desc, c desc) from t1;
drop table t1;
#
# Bug#30897 GROUP_CONCAT returns extra comma on empty fields
#
create table t1 (f1 char(20));
insert into t1 values (''),('');
select group_concat(distinct f1) from t1;
select group_concat(f1) from t1;
drop table t1;
--echo End of 5.0 tests