diff options
Diffstat (limited to 'sql/ha_innodb.cc')
| -rw-r--r-- | sql/ha_innodb.cc | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sql/ha_innodb.cc b/sql/ha_innodb.cc index cbefa9d3949..217f59d4b7e 100644 --- a/sql/ha_innodb.cc +++ b/sql/ha_innodb.cc @@ -6066,6 +6066,15 @@ ha_innobase::external_lock( trx->isolation_level = innobase_map_isolation_level( (enum_tx_isolation) thd->variables.tx_isolation); + + if (trx->isolation_level <= TRX_ISO_READ_COMMITTED + && trx->global_read_view) { + + /* At low transaction isolation levels we let + each consistent read set its own snapshot */ + + read_view_close_for_mysql(trx); + } } if (trx->isolation_level == TRX_ISO_SERIALIZABLE |