Re: any way for a transaction to "see" inserts done earlier in the transaction? - Mailing list pgsql-general

From Susan Cassidy
Subject Re: any way for a transaction to "see" inserts done earlier in the transaction?
Date
Msg-id CAE3Q8o=4K2Tyk1ZmWTq_XhoqMjwcya6RmdpPvQEcKRo4jvxVKg@mail.gmail.com
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In response to Re: any way for a transaction to "see" inserts done earlier in the transaction?  (Susan Cassidy <susan.cassidy@decisionsciencescorp.com>)
Responses Re: any way for a transaction to "see" inserts done earlier in the transaction?  (Adrian Klaver <adrian.klaver@aklaver.com>)
Re: any way for a transaction to "see" inserts done earlier in the transaction?  (David G Johnston <david.g.johnston@gmail.com>)
Re: any way for a transaction to "see" inserts done earlier in the transaction?  (Adrian Klaver <adrian.klaver@aklaver.com>)
List pgsql-general
I marked it volatile, and still the next time I call the function after the first insert, using the previous new id as as input parameter, it still can't "find" the newly inserted id for the next go-round.  Nor can any regular SELECTs in the main program find it.

Susan


On Wed, Apr 16, 2014 at 5:18 PM, Susan Cassidy <susan.cassidy@decisionsciencescorp.com> wrote:
It isn't marked as one of those as all, so whatever the default is.

That could be it.  I'll look up the default.

Thanks,
Susan


On Wed, Apr 16, 2014 at 5:17 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
Susan Cassidy <susan.cassidy@decisionsciencescorp.com> writes:
> It is a fairly large and complex Perl program, so no, not really.
> I do an insert via a function, which returns the new id, then later I try
> to SELECT on that id, and it doesn't find it.

> Could it be because the insert is done inside a function?

Is the SELECT also inside a database function, and if so is that function
marked stable or immutable?  That might explain it --- non-volatile
functions are intentionally designed not to notice updates that happen
after they start.

                        regards, tom lane


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