| From: | Heikki Linnakangas <heikki(dot)linnakangas(at)iki(dot)fi> |
|---|---|
| To: | pgsql-committers(at)postgresql(dot)org |
| Subject: | pgsql: Make non-MVCC snapshots exempt from predicate locking. Scans wit |
| Date: | 2011-06-15 09:15:58 |
| Message-ID: | E1QWmCc-0001Ov-Tn@gemulon.postgresql.org |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-committers |
Make non-MVCC snapshots exempt from predicate locking. Scans with non-MVCC
snapshots, like in REINDEX, are basically non-transactional operations. The
DDL operation itself might participate in SSI, but there's separate
functions for that.
Kevin Grittner and Dan Ports, with some changes by me.
Branch
------
REL9_1_STABLE
Details
-------
http://git.postgresql.org/pg/commitdiff/ff4e078773b48260a36587b54537ca54d929898f
Modified Files
--------------
src/backend/access/heap/heapam.c | 23 +++--
src/backend/access/index/indexam.c | 15 ++--
src/backend/access/nbtree/nbtsearch.c | 33 +++----
src/backend/executor/nodeSeqscan.c | 3 +-
src/backend/storage/lmgr/predicate.c | 168 +++++++++++++++++++++------------
src/include/storage/predicate.h | 9 +-
6 files changed, 151 insertions(+), 100 deletions(-)
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Heikki Linnakangas | 2011-06-15 10:41:48 | pgsql: The rolled-back flag on serializable xacts was pointless and red |
| Previous Message | Heikki Linnakangas | 2011-06-15 09:12:39 | pgsql: Make non-MVCC snapshots exempt from predicate locking. Scans wit |