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MDEV-9606 Server crashes in fix_fields, main.null fails with ps-protocol #2

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This commit is contained in:
Sergei Golubchik 2016-02-22 18:49:35 +01:00
parent e6d51aac77
commit 216b5cc9b6
1 changed files with 2 additions and 1 deletions
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3
sql/item_cmpfunc.cc
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@ -2708,7 +2708,8 @@ Item_func_nullif::fix_length_and_dec()
m_cache->setup(current_thd, args[0]);
m_cache->store(args[0]);
m_cache->set_used_tables(args[0]->used_tables());
args[0]= args[2]= m_cache;
thd->change_item_tree(&args[0], m_cache);
thd->change_item_tree(&args[2], m_cache);
}
set_handler_by_field_type(args[2]->field_type());
collation.set(args[2]->collation);