docs: mention that expression indexes need analyze
authorBruce Momjian <[email protected]>
Thu, 12 Nov 2020 20:00:43 +0000 (15:00 -0500)
committerBruce Momjian <[email protected]>
Thu, 12 Nov 2020 20:00:43 +0000 (15:00 -0500)
commit3284fe452112c9f15975ebccc73c168ed6892d4f
tree3b446e62b496dfa94d205a04d10781efb89d5d46
parentfea2b70dd4deccb2c803d94493a164097b0af662
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
doc/src/sgml/ref/create_index.sgml