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Check if AND/OR expression can be NULL

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Better fix for ALTER TABLE on BDB tables
(Both of the above fixes are already in 4.0)


Docs/manual.texi:
  Changelog
sql/item_cmpfunc.cc:
  Check if AND/OR expression can be NULL
sql/sql_table.cc:
  Better fix for ALTER TABLE on BDB tables
This commit is contained in:
unknown 2002-09-03 15:53:07 +03:00
commit 35115d9a50
3 changed files with 19 additions and 3 deletions
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sql/item_cmpfunc.cc
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@ -1097,6 +1097,8 @@ Item_cond::fix_fields(THD *thd,TABLE_LIST *tables)
used_tables_cache|=item->used_tables();
with_sum_func= with_sum_func || item->with_sum_func;
const_item_cache&=item->const_item();
if (item->maybe_null)
maybe_null=1;
}
if (thd)
thd->cond_count+=list.elements;