Re: [HACKERS] path toward faster partition pruning

From: Rajkumar Raghuwanshi <rajkumar(dot)raghuwanshi(at)enterprisedb(dot)com>
To: Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp>
Cc: David Rowley <david(dot)rowley(at)2ndquadrant(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Kyotaro HORIGUCHI <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp>, Jesper Pedersen <jesper(dot)pedersen(at)redhat(dot)com>, Amit Langote <amitlangote09(at)gmail(dot)com>, Dilip Kumar <dilipbalaut(at)gmail(dot)com>, Beena Emerson <memissemerson(at)gmail(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [HACKERS] path toward faster partition pruning
Date: 2018-02-20 07:56:11
Message-ID: CAKcux6=NWijcz6G6n7BoCJt-JnZi1XO4Sqy7E6tykY=0XTs3Ow@mail.gmail.com
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On Tue, Feb 20, 2018 at 12:34 PM, Amit Langote <
Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp> wrote:

> Attached updated version.
>

Hi Amit,

I have applied v29 patch-set on head and got "ERROR: operator 1209 is not
a member of opfamily 1994" with below test case. Please take a look.

CREATE TABLE part (c1 INT4, c2 TEXT, c3 INT4) PARTITION BY LIST (c2);
CREATE TABLE part_p1 PARTITION OF part FOR VALUES IN('ABC');
CREATE TABLE part_p2 PARTITION OF part FOR VALUES IN('DEF');
CREATE TABLE part_p3 PARTITION OF part FOR VALUES IN('GHI');
CREATE TABLE part_p4 PARTITION OF part FOR VALUES IN('JKL');

INSERT INTO part VALUES (100,'ABC',10);
INSERT INTO part VALUES (110,'DEF',20);
INSERT INTO part VALUES (120,'GHI',10);
INSERT INTO part VALUES (130,'JKL',100);

explain (costs off) SELECT * FROM part WHERE c2 LIKE '%ABC%';
*ERROR: operator 1209 is not a member of opfamily 1994*

Thanks & Regards,
Rajkumar Raghuwanshi
QMG, EnterpriseDB Corporation

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