- Committer: Stewart Smith
- Date: 2010-12-06 04:00:34 UTC
- mto: (2021.1.2 build)
- Revision ID: stewart@flamingspork.com-20101206040034-jbglqifp20b354bj
Merge Revision revid:vasil.dimov@oracle.com-20100930124844-yglojy7c3vaji6dx from MySQL InnoDB
Original revid:vasil.dimov@oracle.com-20100930124844-yglojy7c3vaji6dx
Original Authors: Vasil Dimov <vasil.dimov@oracle.com>
Original commit message:
Fix Bug#56340 innodb updates index stats too frequently after non-index updates
This is a simple optimization issue. All stats are related to only indexed
columns, index size or number of rows in the whole table. UPDATEs that touch
only non-indexed columns cannot affect stats and we can avoid calling the
function row_update_statistics_if_needed() which may result in unnecessary I/O.
Approved by: Marko (rb://466)
Original revid:vasil.dimov@oracle.com-20100930124844-yglojy7c3vaji6dx
Original Authors: Vasil Dimov <vasil.dimov@oracle.com>
Original commit message:
Fix Bug#56340 innodb updates index stats too frequently after non-index updates
This is a simple optimization issue. All stats are related to only indexed
columns, index size or number of rows in the whole table. UPDATEs that touch
only non-indexed columns cannot affect stats and we can avoid calling the
function row_update_statistics_if_needed() which may result in unnecessary I/O.
Approved by: Marko (rb://466)
| Filename | Latest Rev | Last Changed | Committer | Comment | Size | ||
|---|---|---|---|---|---|---|---|
 ..
|
|||||||
client.c |
1799.2.4 | 14 years ago | Monty Taylor | Made BSD files reference root BSD file. | 13.2 KB |
|
|
|
pipe_query.c |
1929.1.24 | 14 years ago | Monty Taylor | fix large stack usage in example/pipe_query.c exa | 3.8 KB |
|
|
|
proxy.c |
1929.1.32 | 14 years ago | Monty Taylor | fix excessive stack usage in examples/proxy.c: exa | 9.8 KB |
|
|
|
server.c |
1929.1.29 | 14 years ago | Monty Taylor | fix examples/server.c stack usage: examples/server | 7.6 KB |
|
|
|
simple.c |
1929.1.27 | 14 years ago | Monty Taylor | fix large stack usage of examples/simple.c example | 2.7 KB |
|
|
|
simple_multi.c |
1929.1.31 | 14 years ago | Monty Taylor | fix alloc in simple_multi.c from stack usage fix | 2.5 KB |
|
|
|
sqlite_server.c |
1929.1.36 | 14 years ago | Monty Taylor | one last sqlite_server stack fix | 12.8 KB |
|
|