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authorTom Lane <tgl@sss.pgh.pa.us>2016-06-09 11:58:00 -0400
committerTom Lane <tgl@sss.pgh.pa.us>2016-06-09 11:58:00 -0400
commit719dd9a64af5f2ec07a9cac16fb161a3c5c18010 (patch)
treed143700fdc2c88c211e2a282ddd98b4217d3004a /doc
parent5b3cd1a771a609306c057969094cd31c0fee00d3 (diff)
downloadpostgresql-719dd9a64af5f2ec07a9cac16fb161a3c5c18010.tar.gz
Clarify documentation of ceil/ceiling/floor functions.
Document these as "nearest integer >= argument" and "nearest integer <= argument", which will hopefully be less confusing than the old formulation. New wording is from Matlab via Dean Rasheed. I changed the pg_description entries as well as the SGML docs. In the back branches, this will only affect installations initdb'd in the future, but it should be harmless otherwise. Discussion: <CAEZATCW3yzJo-NMSiQs5jXNFbTsCEftZS-Og8=FvFdiU+kYuSA@mail.gmail.com>
Diffstat (limited to 'doc')
-rw-r--r--doc/src/sgml/func.sgml6
1 files changed, 3 insertions, 3 deletions
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 82e0412574..a15cf2d179 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -659,7 +659,7 @@
<literal><function>ceil(<type>dp</type> or <type>numeric</type>)</function></literal>
</entry>
<entry>(same as input)</entry>
- <entry>smallest integer not less than argument</entry>
+ <entry>nearest integer greater than or equal to argument</entry>
<entry><literal>ceil(-42.8)</literal></entry>
<entry><literal>-42</literal></entry>
</row>
@@ -672,7 +672,7 @@
<literal><function>ceiling(<type>dp</type> or <type>numeric</type>)</function></literal>
</entry>
<entry>(same as input)</entry>
- <entry>smallest integer not less than argument (alias for <function>ceil</function>)</entry>
+ <entry>nearest integer greater than or equal to argument (same as <function>ceil</function>)</entry>
<entry><literal>ceiling(-95.3)</literal></entry>
<entry><literal>-95</literal></entry>
</row>
@@ -725,7 +725,7 @@
<literal><function>floor(<type>dp</type> or <type>numeric</type>)</function></literal>
</entry>
<entry>(same as input)</entry>
- <entry>largest integer not greater than argument</entry>
+ <entry>nearest integer less than or equal to argument</entry>
<entry><literal>floor(-42.8)</literal></entry>
<entry><literal>-43</literal></entry>
</row>