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Document that pg_getaddrinfo_all does not accept null hints

Daniel Gustafsson <dgustafsson@postgresql.org>

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Commit: d22cc7326ce0fe5033f2c6e3f711047d263c1c86
Author: Daniel Gustafsson <dgustafsson@postgresql.org>
Date: 2025-11-13T15:35:07Z
Releases: 19 (unreleased) 
Document that pg_getaddrinfo_all does not accept null hints

While the underlying getaddrinfo call accepts a null pointer for
the hintp parameter, pg_getaddrinfo_all does not.  Document this
difference with a comment to make it clear.

Author: Daniel Gustafsson <daniel@yesql.se>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Reported-by: Sergey Tatarintsev <s.tatarintsev@postgrespro.ru>
Discussion: https://postgr.es/m/1e5efc94-407e-40b8-8b10-4d25f823c6d7@postgrespro.ru

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src/common/ip.c modified +3 −0

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