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authorTom Lane <tgl@sss.pgh.pa.us>2015-12-28 12:09:00 -0500
committerTom Lane <tgl@sss.pgh.pa.us>2015-12-28 12:09:32 -0500
commit7adbde26ab638e0ce1154338d9b6e7801261d0d8 (patch)
treea96eea4c509d6acd02eccec6f215a46eb67997f9
parent4fb9e6109a40a084eef102f4b6a827a01d69dbb8 (diff)
Document the exponentiation operator as associating left to right.
Common mathematical convention is that exponentiation associates right to left. We aren't going to change the parser for this, but we could note it in the operator's description. (It's already noted in the operator precedence/associativity table, but users might not look there.) Per bug #13829 from Henrik Pauli.
-rw-r--r--doc/src/sgml/func.sgml2
1 files changed, 1 insertions, 1 deletions
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 36b6f050a41..416ef1abd5d 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -505,7 +505,7 @@
<row>
<entry> <literal>^</literal> </entry>
- <entry>exponentiation</entry>
+ <entry>exponentiation (associates left to right)</entry>
<entry><literal>2.0 ^ 3.0</literal></entry>
<entry><literal>8</literal></entry>
</row>