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List:       pgsql-bugs
Subject:    Re: [BUGS] BUG #5531: REGEXP_ REPLACE causes connection drop
From:       Tom Lane <tgl () sss ! pgh ! pa ! us>
Date:       2010-06-30 16:25:32
Message-ID: 11912.1277915132 () sss ! pgh ! pa ! us
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"Ola Sergatchov" <ola_sergatchov@hotmail.com> writes:
> The following bug has been logged online:

> Bug reference:      5531
> Logged by:          Ola Sergatchov
> Email address:      ola_sergatchov@hotmail.com
> PostgreSQL version: 8.1.18
> Operating system:   RedHat Linux 4.1.2-46
> Description:        REGEXP_ REPLACE causes connection drop
> Details: 

> Passing large string to REGEXP_REPLACE function causes the DB connection to
> drop. We executed this function with very large strings (20,000 - 250,000
> characters) both from RedHat and PgAdmin and in both cases the function
> fails to return and eventually the connection drops.

I don't see any such misbehavior here: it either completes or reports
"out of memory".  Could we see a specific problematic example?  Also
what sort of hardware are you on?  (32-bit vs 64-bit seems relevant
in particular.)

			regards, tom lane

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