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authorTom Lane2022-06-03 17:54:53 +0000
committerTom Lane2022-06-03 17:54:53 +0000
commit4ecacc3c8cb4b27374bdb1ca83696c0c09ee7f79 (patch)
tree6ad502d6fba9e741a413b1ebadd4af8bc653c607
parent94c7db4f1dc33f6e393c53cde48775449a593176 (diff)
Doc: improve example for intarray's uniq() function.
The previous entry invited confusion between what uniq() does by itself and what it does when combined with sort(). The latter usage is pretty useful so we should show it, but add an additional example to clarify the results of uniq() alone. Per suggestion from Martin Kalcher. Back-patch to v13, where we switched to formatting that supports multiple examples. Discussion: https://postgr.es/m/[email protected]
-rw-r--r--doc/src/sgml/intarray.sgml5
1 files changed, 5 insertions, 0 deletions
diff --git a/doc/src/sgml/intarray.sgml b/doc/src/sgml/intarray.sgml
index f930c08eeb..18c6f8c3ba 100644
--- a/doc/src/sgml/intarray.sgml
+++ b/doc/src/sgml/intarray.sgml
@@ -131,6 +131,11 @@
</para>
<para>
Removes adjacent duplicates.
+ Often used with <function>sort</function> to remove all duplicates.
+ </para>
+ <para>
+ <literal>uniq('{1,2,2,3,1,1}'::integer[])</literal>
+ <returnvalue>{1,2,3,1}</returnvalue>
</para>
<para>
<literal>uniq(sort('{1,2,3,2,1}'::integer[]))</literal>