Horton

doc: clarify when expression indexes evaluate their expressions

Bruce Momjian <bruce@momjian.us>

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Commit: 8f22fe2025bf97bc2bd6e0a7b3acf97ab970a4e2
Author: Bruce Momjian <bruce@momjian.us>
Date: 2021-12-22T21:29:16Z
Releases: 10.20 
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

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doc/src/sgml/indices.sgml modified +2 −2

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