doc: improve description of subscripting of arrays
authorBruce Momjian <bruce@momjian.us>
Mon, 31 Aug 2020 17:49:17 +0000 (13:49 -0400)
committerBruce Momjian <bruce@momjian.us>
Mon, 31 Aug 2020 17:49:17 +0000 (13:49 -0400)
commit2f8ea9116b17036400b71ec95923990e9fa833cf
treeff6020eecc825050979d5262c5d5e8b180272c73
parentac736e43aa70dfb3da99e8d12349b801229aa2bc
doc:  improve description of subscripting of arrays

It wasn't clear the non-integers are cast to integers for subscripting,
rather than throwing an error.

Reported-by: sean@materialize.io
Discussion: https://postgr.es/m/159538675800.624.7728794628229799531@wrigleys.postgresql.org

Backpatch-through: 9.5
doc/src/sgml/syntax.sgml