Re: Add --include-table-data-where option to pg_dump, to export only a subset of table data

From: Carter Thaxton <carter(dot)thaxton(at)gmail(dot)com>
To: Michael Paquier <michael(at)paquier(dot)xyz>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Surafel Temesgen <surafel3000(at)gmail(dot)com>, Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com>, Euler Taveira <euler(at)timbira(dot)com(dot)br>, Stephen Frost <sfrost(at)snowman(dot)net>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Add --include-table-data-where option to pg_dump, to export only a subset of table data
Date: 2018-07-03 08:46:33
Message-ID: CAGiT_HNKeWDK9YFUMS1vct5XSchM+kK=Fa+bJ8c8WTpeFpJFDg@mail.gmail.com
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>
>
> > pg_dump --where "bar:created_at >= 2018-05-01'"
>
> I am wondering how this works at parsing if the table name, or one of
> the columns includes a colon character :)
>

The proposed patch will handle quoted identifiers. E.g. the following will
work just fine:

pg_dump --where 'table:"column:with:colons" = 5'

Note the use of single quotes in the shell, and then double quotes in the
WHERE clause. There are also many other options for quoting in the shell,
of course.

> Please don't top-post on the PostgreSQL lists. See <
http://idallen.com/topposting.html>

Sorry. Thanks for the reminder.

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