Обсуждение: pgsql: Doc: update documentation for creating custom scan paths.

Doc: update documentation for creating custom scan paths.

Commit f49842d1e added a new callback for custom scan paths, but missed
updating the documentation.

Back-patch to all supported branches.

Discussion: https://postgr.es/m/CAPmGK15ODkN%2B%3DhkBCufj1HBW0x5OTb65Xuy7ryXchMdiCMpx_g%40mail.gmail.com

Branch
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REL_14_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/1ecd74396902983329955a248bed499dca4c4706

Modified Files
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doc/src/sgml/custom-scan.sgml | 19 ++++++++++++++++++-
1 file changed, 18 insertions(+), 1 deletion(-)