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help / color / mirror / Atom feedFrom: Tom Lane <tgl@sss.pgh.pa.us>
To: mohamedhussein10445@gmail.com
Cc: pgsql-docs@lists.postgresql.org
Subject: Re: Request for Formal Syntax of WHERE Clause Conditions
Date: Tue, 21 Jan 2025 12:26:03 -0500
Message-ID: <3358480.1737480363@sss.pgh.pa.us> (raw)
In-Reply-To: <173747531931.1071.13547694511760149052@wrigleys.postgresql.org>
References: <173747531931.1071.13547694511760149052@wrigleys.postgresql.org>
PG Doc comments form <noreply@postgresql.org> writes:
> I am building a PostgreSQL parser and need a precise reference for the
> formal syntax of condition used in the WHERE clause.
We do not have one. You might be able to extract what you need from
our Bison grammar though:
https://git.postgresql.org/gitweb/?p=postgresql.git;a=blob;f=src/backend/parser/gram.y;h=d7f9c00c409...
starting more or less from the a_expr production.
Keep in mind that this is a moving target, as we frequently add
new syntax features.
regards, tom lane
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To: pgsql-docs@postgresql.org
Cc: tgl@sss.pgh.pa.us, mohamedhussein10445@gmail.com, pgsql-docs@lists.postgresql.org
Subject: Re: Request for Formal Syntax of WHERE Clause Conditions
In-Reply-To: <3358480.1737480363@sss.pgh.pa.us>
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