Horton

Re: FOR SHARE vs FOR UPDATE locks

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: "Joshua D. Drake" <jd@commandprompt.com>
Cc: Heikki Linnakangas <heikki@enterprisedb.com>, Alvaro Herrera <alvherre@commandprompt.com>, Simon Riggs <simon@2ndquadrant.com>, pgsql-hackers@postgresql.org
Date: 2006-12-01T17:35:16Z
Lists: pgsql-hackers, pgsql-docs 
"Joshua D. Drake" <jd@commandprompt.com> writes:
> At what point is the exclusive lock released? When I create a new
> savepoint? On COMMIT of the entire transaction?

COMMIT, or rollback to a savepoint before the original shared lock
was taken.

			regards, tom lane