diff options
| author | unknown <jan@hundin.mysql.fi> | 2005-07-22 14:10:03 +0300 |
|---|---|---|
| committer | unknown <jan@hundin.mysql.fi> | 2005-07-22 14:10:03 +0300 |
| commit | 6fd13aaa3ccc470f03c51686f781651c9709154e (patch) | |
| tree | 883851cd5501311efd796192fc3f483fd158d9d6 /innobase/row | |
| parent | adf5fdcd7413c110b2b27f118f41eb249c781e4e (diff) | |
| download | mariadb-git-6fd13aaa3ccc470f03c51686f781651c9709154e.tar.gz | |
Implement MySQL framework to support consistent read views in
cursors for InnoDB. The idea of the patch is that if MySQL requests
a consistent read view, we open one when open a cursor, set is as the
active view to a transaction when fetch from the cursor, and close
together with cursor close. This patch is associated to bugs #11813,
#11832, and #11833. Contains after review fixes.
Diffstat (limited to 'innobase/row')
| -rw-r--r-- | innobase/row/row0sel.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/innobase/row/row0sel.c b/innobase/row/row0sel.c index 15439bed7e7..602f5855171 100644 --- a/innobase/row/row0sel.c +++ b/innobase/row/row0sel.c @@ -4083,6 +4083,11 @@ normal_return: } func_exit: + /* Restore a global read view back to transaction. This forces + MySQL always to set cursor view before fetch if it is used. */ + + trx->read_view = trx->global_read_view; + trx->op_info = ""; if (UNIV_LIKELY_NULL(heap)) { mem_heap_free(heap); @@ -4136,7 +4141,8 @@ row_search_check_if_query_cache_permitted( && !trx->read_view) { trx->read_view = read_view_open_now(trx, - trx->read_view_heap); + trx->global_read_view_heap); + trx->global_read_view = trx->read_view; } } |