| From: | Peter Geoghegan <pg(at)heroku(dot)com> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de> |
| Cc: | Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Dean Rasheed <dean(dot)a(dot)rasheed(at)gmail(dot)com>, Stanislav Grozev <tacho(at)daemonz(dot)org>, PostgreSQL mailing lists <pgsql-bugs(at)postgresql(dot)org> |
| Subject: | Re: Incorrect UPDATE trigger invocation in the UPDATE clause of an UPSERT statement. |
| Date: | 2015-12-09 05:37:13 |
| Message-ID: | CAM3SWZStE7KxO8XCQ+biw5D9EGU41vh7T=djrhBi_jnD0DCQpw@mail.gmail.com |
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| Lists: | pgsql-bugs |
On Tue, Dec 8, 2015 at 3:32 PM, Peter Geoghegan <pg(at)heroku(dot)com> wrote:
> We're on the same page. I just happen to think we might as well put
> the check beside the existing special case check for weird before
> triggers -- within ExecUpdate()'s HeapTupleSelfUpdated case. That
> avoids an extra HeapTupleSatisfiesUpdate() call for every UPSERT
> update. We mostly only call that routine from heapam.c as things are.
> But I'm hardly going to insist on that.
Attached is a worked out patch, with the small differences I went
into. Take from it what you want.
--
Peter Geoghegan
| Attachment | Content-Type | Size |
|---|---|---|
| 0001-Fix-AFTER-UPDATE-trigger-behavior.patch | text/x-patch | 9.2 KB |
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