Thread: pgsql: Doc: clarify behavior of "anyrange" pseudo-type.

Doc: clarify behavior of "anyrange" pseudo-type.

I noticed that we completely failed to document the restriction
that an "anyrange" result type has to be inferred from an "anyrange"
input.  The docs also were less clear than they could be about the
relationship between "anyrange" and "anyarray".

It's been like this all along, so back-patch.

Branch
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REL9_5_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/f99363e23102c1dceb83d066e3b16c4688079634

Modified Files
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doc/src/sgml/extend.sgml | 21 +++++++++++++++++----
1 file changed, 17 insertions(+), 4 deletions(-)