Doc: update section 9.11 for new function table layout.

This also makes an attempt to flesh out the docs for some of the more
severely underdocumented geometric operators and functions.

This effort exposed that the point <^ point (point_below) and
point >^ point (point_above) operators are misnamed; they should be
<<| and |>>, because they act like the other operators named that
way and not like the other operators named <^ and >^.  But I just
documented them that way; fixing it is matter for another patch.

The haphazard datatype coverage of many of the operators is also
now depressingly obvious.

Discussion: https://postgr.es/m/158110996889.1089.4224139874633222837@wrigleys.postgresql.org
This commit is contained in:
Tom Lane 2020-04-22 14:43:26 -04:00
parent 9f2c4edec2
commit 791090bd77

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