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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Andrew Dunstan <andrew@dunslane.net>
cc: Amul Sul <sulamul@gmail.com>, Andres Freund <andres@anarazel.de>,
        Alexander Korotkov <aekorotkov@gmail.com>,
        Robert Haas <robertmhaas@gmail.com>,
        "David G. Johnston" <david.g.johnston@gmail.com>,
        Corey Huinker <corey.huinker@gmail.com>,
        Alvaro Herrera <alvherre@alvh.no-ip.org>,
        Joe Conway <mail@joeconway.com>,
        Nikita Glukhov <n.gluhov@postgrespro.ru>,
        PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Subject: Re: Error-safe user functions
In-reply-to: <be2bb2c4-d246-3cad-b969-7eba4c08336a@dunslane.net>
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Comments: In-reply-to Andrew Dunstan <andrew@dunslane.net>
	message dated "Wed, 14 Dec 2022 16:45:45 -0500"
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Date: Wed, 14 Dec 2022 17:37:49 -0500
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Andrew Dunstan <andrew@dunslane.net> writes:
> Thanks, I have been looking at jsonpath, but I'm not quite sure how to
> get the escontext argument to the yyerror calls in jsonath_scan.l. Maybe
> I need to specify a lex-param setting?

You want a parse-param option in jsonpath_gram.y, I think; adding that
will persuade Bison to change the signatures of relevant functions.
Compare the mods I made in contrib/cube in ccff2d20e.

			regards, tom lane