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(parent: 0627f36) | patch
Doc: update libpq's documentation for PQfn().
authorTom Lane <[email protected]>
Fri, 30 Apr 2021 19:10:06 +0000 (15:10 -0400)
committerTom Lane <[email protected]>
Fri, 30 Apr 2021 19:10:06 +0000 (15:10 -0400)
commit49172d88f9d03d063e680e45fc51dffea218add1
treed4c24c62110d8b547b590208c88d8be992184d22tree
parent0627f3630ce780e39aee0dc5881076a6148fcc18commit | diff
Doc: update libpq's documentation for PQfn().

Mention specifically that you can't call aggregates, window functions,
or procedures this way (the inability to call SRFs was already
mentioned).

Also, the claim that PQfn doesn't support NULL arguments or results
has been a lie since we invented protocol 3.0.  Not sure why this
text was never updated for that, but do it now.

Discussion: https://postgr.es/m/2039442.1615317309@sss.pgh.pa.us
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