From: Amit Langote <Langote_Amit_f8@lab.ntt.co.jp>
To: Bruno Wolff III <bruno@wolff.to>
To: pgsql-bugs@postgresql.org
Subject: Re: Beta 10 parser error for CREATE STATISTICS IF NOT EXISTS
Date: Wed, 21 Jun 2017 10:15:28 +0900
Message-ID: <73b2a51a-3cf9-a44c-4cd0-bbc611016eb4@lab.ntt.co.jp> (raw)
In-Reply-To: <20170621004237.GB8337@wolff.to>
References: <20170621004237.GB8337@wolff.to>
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On 2017/06/21 9:42, Bruno Wolff III wrote:
> I'm not seeing an obvious error in my attempt to use CREATE STATISTICS IF
> NOT EXISTS. Given this is new, maybe there is a bug in the parser.
>
> Sample output:
> psql (10beta1)
> Type "help" for help.
>
> o365logs=# select version();
>
> version
> --------------------------------------------------------------------------------
>
> ----------------------------
> PostgreSQL 10beta1 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 4.8.5
> 20150623
> (Red Hat 4.8.5-11), 64-bit
> (1 row)
>
> o365logs=# CREATE STATISTICS IF NOT EXISTS logs_corrtest (dependencies) ON
> record_type, operation FROM logs;
> ERROR: syntax error at or near "NOT"
> LINE 1: CREATE STATISTICS IF NOT EXISTS logs_corrtest (dependencies)...
Looks like a documentation bug if the authors of the feature actually
meant to implement the following syntax:
CREATE [ IF NOT EXISTS ] STATISTICS
create if not exists statistics words_stats on a, b from words;
CREATE STATISTICS
create if not exists statistics words_stats on a, b from words;
NOTICE: statistics object "words_stats" already exists, skipping
CREATE STATISTICS
If that's really what's intended, it seems a bit inconsistent with most
other commands and with DROP STATISTICS [ IF NOT EXISTS ] itself.
Thanks,
Amit
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To: pgsql-bugs@postgresql.org
Cc: Langote_Amit_f8@lab.ntt.co.jp, bruno@wolff.to
Subject: Re: Beta 10 parser error for CREATE STATISTICS IF NOT EXISTS
In-Reply-To: <73b2a51a-3cf9-a44c-4cd0-bbc611016eb4@lab.ntt.co.jp>
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