From: Tom Lane <tgl@sss.pgh.pa.us>
To: Jeff Janes <jeff.janes@gmail.com>
cc: Alexander Korotkov <a.korotkov@postgrespro.ru>,
        Nikita Glukhov <n.gluhov@postgrespro.ru>,
        Tomas Vondra <tomas.vondra@2ndquadrant.com>,
        Andres Freund <andres@anarazel.de>,
        Oleg Bartunov <obartunov@postgrespro.ru>,
        Michael Paquier <michael@paquier.xyz>,
        Stas Kelvich <s.kelvich@postgrespro.ru>,
        PostgreSQL-development <pgsql-hackers@postgresql.org>,
        Thomas Munro <thomas.munro@enterprisedb.com>,
        David Steele <david@pgmasters.net>,
        Andrew Dunstan <andrew.dunstan@2ndquadrant.com>,
        Robert Haas <robertmhaas@gmail.com>,
        Pavel Stehule <pavel.stehule@gmail.com>
Subject: Re: jsonpath
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Comments: In-reply-to Jeff Janes <jeff.janes@gmail.com>
	message dated "Sat, 16 Mar 2019 13:51:44 -0400"
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Date: Sat, 16 Mar 2019 13:59:04 -0400
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Jeff Janes <jeff.janes@gmail.com> writes:
> I think these files have to be cleaned up by "make maintainer-clean"

> ./src/backend/utils/adt/jsonpath_gram.c
> ./src/backend/utils/adt/jsonpath_scan.c

Good point.  I also see jsonpath_gram.h left behind after maintainer-clean:

$ git status --ignored
On branch master
Your branch is up-to-date with 'origin/master'.
Ignored files:
  (use "git add -f <file>..." to include in what will be committed)

        src/backend/utils/adt/jsonpath_gram.c
        src/backend/utils/adt/jsonpath_scan.c
        src/include/utils/jsonpath_gram.h

Looks like whoever modified src/backend/Makefile's distprep target
didn't bother to read the comment.

			regards, tom lane