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MDEV-19452 - fix incorrect push_warning_printf

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String is not guaranteed to be null-terminated, thus push_warning_printf
also needs to specify the length.
This commit is contained in:
Vladislav Vaintroub
2019-05-13 14:31:15 +00:00
parent 0c188d5efc
commit 374dae3ecc
1 changed files with 8 additions and 5 deletions
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13
sql/item_subselect.cc
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@ -711,11 +711,14 @@ bool Item_subselect::exec()
DBUG_ASSERT(fixed);
DBUG_EXECUTE_IF("Item_subselect",
push_warning_printf(thd, Sql_condition::WARN_LEVEL_NOTE,
ER_UNKNOWN_ERROR, "DBUG: Item_subselect::exec %s",
Item::Print(this,
enum_query_type(QT_TO_SYSTEM_CHARSET |
QT_WITHOUT_INTRODUCERS)).ptr()););
Item::Print print(this,
enum_query_type(QT_TO_SYSTEM_CHARSET |
QT_WITHOUT_INTRODUCERS));
push_warning_printf(thd, Sql_condition::WARN_LEVEL_NOTE,
ER_UNKNOWN_ERROR, "DBUG: Item_subselect::exec %.*s",
print.length(),print.ptr());
);
/*
Do not execute subselect in case of a fatal error
or if the query has been killed.