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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2007-10-11 18:05:27 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2007-10-11 18:05:27 +0000 |
| commit | 82d8ab6fc4c1a0330c91022728e1e766db207069 (patch) | |
| tree | 0bd9635d34da6c964d37fd4a725ead26a9a7340d /src/backend/utils/adt/ascii.c | |
| parent | 68b08b251239e9ec883156b0cba53316c88adb5f (diff) | |
| download | postgresql-82d8ab6fc4c1a0330c91022728e1e766db207069.tar.gz postgresql-82d8ab6fc4c1a0330c91022728e1e766db207069.zip | |
Fix the plan-invalidation mechanism to treat regclass constants that refer to
a relation as a reason to invalidate a plan when the relation changes. This
handles scenarios such as dropping/recreating a sequence that is referenced by
nextval('seq') in a cached plan. Rather than teach plancache.c all about
digging through plan trees to find regclass Consts, we charge the planner's
setrefs.c with making a list of the relation OIDs on which each plan depends.
That way the list can be built cheaply during a plan tree traversal that has
to happen anyway. Per bug #3662 and subsequent discussion.
Diffstat (limited to 'src/backend/utils/adt/ascii.c')
0 files changed, 0 insertions, 0 deletions