pgsql: doc: add examples of creative use of unique expression indexes

Bruce Momjian <[email protected]> Fri, 27 Dec 2019 19:49:17 +0000
Newsgroups gmane.comp.db.postgresql.devel.cvs
Message-ID <[email protected]>
doc:  add examples of creative use of unique expression indexes

Unique expression indexes can constrain data in creative ways, so show
two examples.

Reported-by: Tuomas Leikola

Discussion: https://postgr.es/m/[email protected]

Backpatch-through: 9.4

Branch
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REL9_5_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/937cf1b09146ef91195780f747900cf69e8d0fd8

Modified Files
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doc/src/sgml/indices.sgml | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)