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From: Todd A. Cook <tcook@blackducksoftware.com>
To: Andres Freund <andres@anarazel.de>
Cc: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Tomas Vondra <tomas.vondra@2ndquadrant.com>
Cc: Thomas Munro <thomas.munro@enterprisedb.com>
Cc: PostgreSQL Bugs <pgsql-bugs@postgresql.org>
Subject: Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in an infinite loop
Date: Mon, 29 Jan 2018 13:56:37 -0500
Message-ID: <633f3730-0cba-9aed-2724-3ae4295bb0b2@blackducksoftware.com> (raw)
In-Reply-To: <20180129183118.rdtm34fshwxlajzm@alap3.anarazel.de>
References: <219b37b2-d740-d04a-203a-49ae422028f7@blackducksoftware.com>
	<c15378b3-d4aa-a5c0-5538-dd52904dcbc6@2ndquadrant.com>
	<1773c302-2fb1-749f-8ccc-62b23617c5ac@blackducksoftware.com>
	<25629.1512580464@sss.pgh.pa.us>
	<20171206171923.dg7phzfh7nb4lou3@alap3.anarazel.de>
	<7de4b2d6-b119-7d15-04d8-4c0fcb29cbc3@2ndquadrant.com>
	<20180126234537.dyu6jwnqz7snpq7n@alap3.anarazel.de>
	<14184.1517010515@sss.pgh.pa.us>
	<20180129010213.rt3nu73ilff756f6@alap3.anarazel.de>
	<15ae5ae2-bc74-ebef-f9d6-34b16423cc04@blackducksoftware.com>
	<20180129183118.rdtm34fshwxlajzm@alap3.anarazel.de>

On 01/29/18 13:31, Andres Freund wrote:
> On 2018-01-29 13:20:25 -0500, Todd A. Cook wrote:
>> I applied 0001 and 0002 to REL_10_STABLE at 1b2a3860d3ea81825e9bbad2c7dbf66db87445c1
>> and got the following build error:
>>
>> 	execGrouping.c:26:29: fatal error: utils/hashutils.h: No such file or directory
>> 	 #include "utils/hashutils.h"
> 
> Yea, there's some minor differences from master to the 10 branch,
> needing to backport one commit beforehand. Attached are three patches
> applying to 10.

Thanks.

With those patches applied, I'm able to process a 175 million row data set
without any problems.  I'll try the 900 million row set next.

-- todd




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  Subject: Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in an infinite loop
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