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| author | Varun Gupta <varunraiko1803@gmail.com> | 2017-11-30 11:56:02 +0200 |
|---|---|---|
| committer | Varun Gupta <varunraiko1803@gmail.com> | 2017-11-30 11:56:02 +0200 |
| commit | b8d1398b1d061566ada0714fb2407cdd45ff42b2 (patch) | |
| tree | 44138f54e7bd45680918dff097b196620a694316 /sql/table.cc | |
| parent | 9b53e541f03d74e2777e0d1e7618b6246b81c721 (diff) | |
| download | mariadb-git-b8d1398b1d061566ada0714fb2407cdd45ff42b2.tar.gz | |
MDEV-10397: Server crashes in key_copy with join_cache_level > 2 and join on BIT fields
For BIT field null_bit is not set to 0 even for a field defined as NOT NULL.
So now in the function TABLE::create_key_part_by_field, if the bit field is not nullable
then the null_bit is explicitly set to 0
Diffstat (limited to 'sql/table.cc')
| -rw-r--r-- | sql/table.cc | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sql/table.cc b/sql/table.cc index 9d52d5f87a2..fbcd91f5326 100644 --- a/sql/table.cc +++ b/sql/table.cc @@ -5987,6 +5987,14 @@ void TABLE::create_key_part_by_field(KEY_PART_INFO *key_part_info, might be reused. */ key_part_info->store_length= key_part_info->length; + /* + For BIT fields null_bit is not set to 0 even if the field is defined + as NOT NULL, look at Field_bit::Field_bit + */ + if (!field->real_maybe_null()) + { + key_part_info->null_bit= 0; + } /* The total store length of the key part is the raw length of the field + |