Re: [HACKERS] Pre-existing bug in trigger.c

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От Alvaro Herrera
Тема Re: [HACKERS] Pre-existing bug in trigger.c
Дата
Msg-id 20170919084151.slpsbmero7lzth5u@alvherre.pgsql
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Ответ на Re: [HACKERS] Pre-existing bug in trigger.c  (Tom Lane <tgl@sss.pgh.pa.us>)
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Tom Lane wrote:

> After studying this awhile, I've concluded that neither of those
> ideas leads to a fix simple enough that I'd be comfortable with
> back-patching it.  What seems like the best answer is to not pass
> delete_ok = true to afterTriggerInvokeEvents in AfterTriggerEndQuery.
> Then, afterTriggerInvokeEvents will examine the passed event list
> pointer only during its loop initialization, at which time it's
> surely still valid.

For reference: this fix was committed as 27c6619e9c8f.

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Álvaro Herrera                https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services


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