Re: [Proposal] Global temporary tables

From: tushar <tushar(dot)ahuja(at)enterprisedb(dot)com>
To: 曾文旌 <wenjing(dot)zwj(at)alibaba-inc(dot)com>, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>, Prabhat Sahu <prabhat(dot)sahu(at)enterprisedb(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, Konstantin Knizhnik <k(dot)knizhnik(at)postgrespro(dot)ru>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>, 蔡松露(子嘉) <zijia(at)taobao(dot)com>, "Cai, Le" <le(dot)cai(at)alibaba-inc(dot)com>
Subject: Re: [Proposal] Global temporary tables
Date: 2020-04-24 13:03:03
Message-ID: 18342268-cb9b-a879-2946-93dcfed02729@enterprisedb.com
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On 4/22/20 2:49 PM, 曾文旌 wrote:
>
> I provide the TRUNCATE tablename DROP to clear the data in the GTT and
> delete the storage files.
> This feature requires the current transaction to commit immediately
> after it finishes truncate.
>
Thanks Wenjing , Please refer this scenario

postgres=# create global temp table testing (a int);
CREATE TABLE
postgres=# begin;
BEGIN
postgres=*# truncate testing;      -- working   [1]
TRUNCATE TABLE
postgres=*# truncate testing drop;
ERROR:  Truncate global temporary table cannot run inside a transaction
block    --that is throwing an error claiming something which i did 
successfully [1]
postgres=!#

--
regards,tushar
EnterpriseDB https://www.enterprisedb.com/
The Enterprise PostgreSQL Company

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