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| author | Sergei Golubchik <serg@mariadb.org> | 2020-05-09 20:43:36 +0200 |
|---|---|---|
| committer | Sergei Golubchik <serg@mariadb.org> | 2020-05-09 20:43:36 +0200 |
| commit | 13038e4705ed55e24362dfad977a1ee454cfebfd (patch) | |
| tree | ac3d37fe69e802dec8008748b86cc901f116eead /sql/rowid_filter.cc | |
| parent | 72c7b4eb4cc86ca2f6bdb9e105b67d39df018a40 (diff) | |
| parent | f5844e7c4bc693783f088a5fc9c399b786ddc8c1 (diff) | |
| download | mariadb-git-13038e4705ed55e24362dfad977a1ee454cfebfd.tar.gz | |
Merge branch '10.4' into 10.5
Diffstat (limited to 'sql/rowid_filter.cc')
| -rw-r--r-- | sql/rowid_filter.cc | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sql/rowid_filter.cc b/sql/rowid_filter.cc index 1d9363693cb..d8d0890e1f9 100644 --- a/sql/rowid_filter.cc +++ b/sql/rowid_filter.cc @@ -469,6 +469,14 @@ TABLE::best_range_rowid_filter_for_partial_join(uint access_key_no, covering_keys.is_set(access_key_no)) return 0; + // Disallow use of range filter if the key contains partially-covered + // columns. + for (uint i= 0; i < key_info[access_key_no].usable_key_parts; i++) + { + if (key_info[access_key_no].key_part[i].field->type() == MYSQL_TYPE_BLOB) + return 0; + } + /* Currently we do not support usage of range filters if the table is accessed by the clustered primary key. It does not make sense |