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MDEV-12656 Crash in CREATE..SELECT..UNION with a ENUM column and NULL

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This commit is contained in:
Alexander Barkov
2017-05-02 11:39:20 +04:00
parent 50b70e765b
commit 85b73e2254
6 changed files with 133 additions and 10 deletions
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12
sql/sql_type.cc
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@ -470,12 +470,24 @@ const Type_handler *Type_handler_row::type_handler_for_comparison() const
/***************************************************************************/
const Type_handler *Type_handler_enum::type_handler_for_item_field() const
{
return &type_handler_string;
}
const Type_handler *Type_handler_enum::cast_to_int_type_handler() const
{
return &type_handler_longlong;
}
const Type_handler *Type_handler_set::type_handler_for_item_field() const
{
return &type_handler_string;
}
const Type_handler *Type_handler_set::cast_to_int_type_handler() const
{
return &type_handler_longlong;