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doc: clarify when expression indexes evaluate their expressions
authorBruce Momjian <bruce@momjian.us>
Wed, 22 Dec 2021 21:29:16 +0000 (16:29 -0500)
committerBruce Momjian <bruce@momjian.us>
Wed, 22 Dec 2021 21:29:16 +0000 (16:29 -0500)
commitf163cc8f4d6952da79eda461b67626d1fdfafed0
tree756394174e4f407c84aa47e1af455a0ee5642481tree | snapshot
parent1a0ef5e2cc63797feec1bbbf2ca89906fed76bfbcommit | diff
doc:  clarify when expression indexes evaluate their expressions

Only non-HOT updates evaluate the index expression.

Reported-by: Chris Lowder
Discussion: https://postgr.es/m/163967385701.26064.15365003480975321072@wrigleys.postgresql.org

Backpatch-through: 10
doc/src/sgml/indices.sgml diff | blob | blame | history
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