| From: | tgl(at)svr1(dot)postgresql(dot)org (Tom Lane) |
|---|---|
| To: | pgsql-committers(at)postgresql(dot)org |
| Subject: | pgsql: Avoid redundant relation lock grabs during planning, and make |
| Date: | 2005-05-23 03:01:14 |
| Message-ID: | 20050523030114.CCA0652880@svr1.postgresql.org |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-committers |
Log Message:
-----------
Avoid redundant relation lock grabs during planning, and make sure
that we acquire a lock on relations added to the query due to inheritance.
Formerly, no such lock was held throughout planning, which meant that
a schema change could occur to invalidate the plan before it's even
been completed.
Modified Files:
--------------
pgsql/src/backend/optimizer/prep:
preptlist.c (r1.75 -> r1.76)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/optimizer/prep/preptlist.c.diff?r1=1.75&r2=1.76)
pgsql/src/backend/optimizer/util:
plancat.c (r1.107 -> r1.108)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/optimizer/util/plancat.c.diff?r1=1.107&r2=1.108)
relnode.c (r1.65 -> r1.66)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/optimizer/util/relnode.c.diff?r1=1.65&r2=1.66)
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Bruce Momjian | 2005-05-23 17:13:15 | pgsql: Remove unnecessary parentheses in datetime/timestamp code. |
| Previous Message | Neil Conway | 2005-05-23 02:02:53 | pgsql: Fix typo in PL/Perl Safe.pm initialization that prevented the |