Request for Formal Syntax of WHERE Clause Conditions

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Subject: Request for Formal Syntax of WHERE Clause Conditions
Date: 2025-01-21 16:01:59
Message-ID: 173747531931.1071.13547694511760149052@wrigleys.postgresql.org
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The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/17/sql-select.html
Description:

Dear PostgreSQL Team,

I am building a PostgreSQL parser and need a precise reference for the
formal syntax of condition used in the WHERE clause. While the documentation
covers many aspects in detail, I could not find a formal definition for what
constitutes a valid condition.

This information is critical for accurately parsing queries. Could you
please provide clarity or point me to relevant resources?

Thank you for your assistance!

Best regards,

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