Sergey Glukhov 6330815a0c Bug#58396 group_concat and explain extended are still crashy ...

Explain fails at fix_fields stage and some items are left unfixed,
particulary Item_group_concat. Item_group_concat::orig_args field
is uninitialized in this case and Item_group_concat::print call 
leads to crash.
The fix:
move the initialization of Item_group_concat::orig_args
into constructor.


mysql-test/r/func_gconcat.result:
  test case
mysql-test/t/func_gconcat.test:
  test case
sql/item_sum.cc:
  move the initialization of Item_group_concat::orig_args
  into constructor.

2010-12-13 13:39:26 +03:00

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