docs: mention that expression indexes need analyze Expression indexes can't benefit from pre-computed statistics on columns. Reported-by: Nikolay Samokhvalov Discussion: https://postgr.es/m/CANNMO++5rw9RDA=p40iMVbMNPaW6O=S0AFzTU=KpYHRpCd1voA@mail.gmail.com Author: Nikolay Samokhvalov, modified Backpatch-through: 9.5 Branch ------ REL9_6_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/05a719ceb0aada6d1a1a9b432227841bbaf280ae Modified Files -------------- doc/src/sgml/ref/create_index.sgml | 10 ++++++++++ 1 file changed, 10 insertions(+)
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