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Re: [PORTS] Port Bug Report: missing commas in IN( ) ignored; bracketing entries ignored

From: Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
To: djerius(at)cfa(dot)harvard(dot)edu
Cc: pgsql-ports(at)postgreSQL(dot)org
Subject: Re: [PORTS] Port Bug Report: missing commas in IN( ) ignored; bracketing entries ignored
Date: 1999-04-26 16:05:50
Message-ID: 199904261605.MAA22842@candle.pha.pa.us (view raw or flat)
Thread:
Lists: pgsql-ports
> Problem Description:
> --------------------
> In psql, if a list of entries in an IN ( ) statement is
> split across several lines, missing commas are not flagged as errors,
> but the entries immediately before and after the missing comma
> are ignored
> 
> --------------------------------------------------------------------------
> 
> Test Case:
> ----------
> The following sql shows the problem.  Note the missing comma between
> the 'c' and 'd' lines in the IN( ) clause.  The query
> should return no rows.
> 
> drop table test;
> 
> create table test ( s text );
> 
> insert into test values ( 'a' );
> insert into test values ( 'b' );
> insert into test values ( 'c' );
> insert into test values ( 'd' );
> insert into test values ( 'e' );
> 
> 
> 
> select 
>     s
> from
>     test
> where
>     s not in ( 
> 	'a',
> 	'b',
> 	'c'
> 	'd',
> 	'e'
>     )
> order by s
> ;

That is the strangest parser problem I have seen in quite some time.

Does anyone want to guess on a cause?

-- 
  Bruce Momjian                        |  http://www.op.net/~candle
  maillist(at)candle(dot)pha(dot)pa(dot)us            |  (610) 853-3000
  +  If your life is a hard drive,     |  830 Blythe Avenue
  +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026

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