diff options
| -rw-r--r-- | mysql-test/t/partition_innodb.test | 13 | ||||
| -rw-r--r-- | sql/ha_partition.cc | 8 |
2 files changed, 19 insertions, 2 deletions
diff --git a/mysql-test/t/partition_innodb.test b/mysql-test/t/partition_innodb.test index 2ce7e89f9f2..21769a8b944 100644 --- a/mysql-test/t/partition_innodb.test +++ b/mysql-test/t/partition_innodb.test @@ -577,6 +577,19 @@ connection default; SELECT * FROM t1; COMMIT; DROP TABLE t1; + +# +# Bug #55146 Assertion `m_part_spec.start_part == m_part_spec.end_part' in index_read_idx_map +# + +CREATE TABLE t1 (i1 int NOT NULL primary key, f1 int) ENGINE = InnoDB + PARTITION BY HASH(i1) PARTITIONS 2; + +INSERT INTO t1 VALUES (1,1), (2,2); + +SELECT * FROM t1 WHERE i1 = ( SELECT i1 FROM t1 WHERE f1=0 LIMIT 1 ); +DROP TABLE t1; + --enable_parsing --echo # diff --git a/sql/ha_partition.cc b/sql/ha_partition.cc index 501eb083a6e..7805bc97d7a 100644 --- a/sql/ha_partition.cc +++ b/sql/ha_partition.cc @@ -4382,8 +4382,12 @@ int ha_partition::index_read_idx_map(uchar *buf, uint index, get_partition_set(table, buf, index, &m_start_key, &m_part_spec); - /* How can it be more than one partition with the current use? */ - DBUG_ASSERT(m_part_spec.start_part == m_part_spec.end_part); + /* + We have either found exactly 1 partition + (in which case start_part == end_part) + or no matching partitions (start_part > end_part) + */ + DBUG_ASSERT(m_part_spec.start_part >= m_part_spec.end_part); for (part= m_part_spec.start_part; part <= m_part_spec.end_part; part++) { |