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docs: adjust multi-column most-common-value statistics
authorBruce Momjian <bruce@momjian.us>
Mon, 30 Sep 2019 17:44:22 +0000 (13:44 -0400)
committerBruce Momjian <bruce@momjian.us>
Mon, 30 Sep 2019 17:44:22 +0000 (13:44 -0400)
commit737f226842748cf946cad3bd30aadfd0c03ad16f
tree5b2c479ca2023c2f486fb61f61ea18aea3c7efd2tree | snapshot
parent9d42df74a3ad0379fe90e56c92eecac6957876f3commit | diff
docs:  adjust multi-column most-common-value statistics

This commit adds a mention that the order of columns specified during
multi-column most-common-value statistics is insignificant, and tries to
simplify examples.

Discussion: https://postgr.es/m/20190828162238.GA8360@momjian.us

Backpatch-through: 12
doc/src/sgml/perform.sgml diff | blob | history
doc/src/sgml/ref/create_statistics.sgml diff | blob | history
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