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Why use " != " - Mailing list pgsql-hackers

From	ipig
Subject	Why use " != "
Date	May 16, 2006 02:17:35
Msg-id	004601c6788e$d7254170$8c01a8c0@homepig Whole thread Raw
Responses	Re: Why use " != "
List	pgsql-hackers

Hi,

in postgresql-8.1.3/src/backend/storage/lmgr/proc.c

there are 2 function InitProcess and InitDummyProcess, both use

" if (MyProc != NULL)
elog(ERROR, "you already exist"); " (line 215 and 315)

why use " != " ?

Best regards.

From: "Joshua D. Drake"
Date: 16 May 2006, 00:43:43
Subject: Re: Compression and on-disk sorting

From: Christopher Kings-Lynne
Date: 16 May 2006, 02:49:36
Subject: Re: audit table containing Select statements submitted