A private email I received indicated that our documentation about
ignoring trailing spaces in CHAR() comparisons was slightly inaccurate.
I have update our docs to indicate it is only non-pattern comparisons
that ignore spaces with CHAR(). Applied doc patch attached.
--
Bruce Momjian <[email protected]> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ It's impossible for everything to be true. +
diff --git a/doc/src/sgml/datatype.sgml b/doc/src/sgml/datatype.sgml
index b8f6e23..22d4c4e 100644
*** a/doc/src/sgml/datatype.sgml
--- b/doc/src/sgml/datatype.sgml
*************** SELECT '52093.89'::money::numeric::float
*** 1014,1024 ****
with spaces to the specified width <replaceable>n</>, and are
stored and displayed that way. However, the padding spaces are
treated as semantically insignificant. Trailing spaces are
! disregarded when comparing two values of type <type>character</type>,
and they will be removed when converting a <type>character</type> value
to one of the other string types. Note that trailing spaces
<emphasis>are</> semantically significant in
! <type>character varying</type> and <type>text</type> values.
</para>
<para>
--- 1014,1026 ----
with spaces to the specified width <replaceable>n</>, and are
stored and displayed that way. However, the padding spaces are
treated as semantically insignificant. Trailing spaces are
! disregarded when non-pattern comparing two values of type <type>character</type>,
and they will be removed when converting a <type>character</type> value
to one of the other string types. Note that trailing spaces
<emphasis>are</> semantically significant in
! <type>character varying</type> and <type>text</type> values, and
! when using pattern matching comparisons, e.g. <literal>LIKE</>,
! regular expressions.
</para>
<para>
--
Sent via pgsql-docs mailing list ([email protected])
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-docs
