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Diffstat (limited to 'doc/src/sgml/citext.sgml')
| -rw-r--r-- | doc/src/sgml/citext.sgml | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/doc/src/sgml/citext.sgml b/doc/src/sgml/citext.sgml index 43ebd25958..49b0989815 100644 --- a/doc/src/sgml/citext.sgml +++ b/doc/src/sgml/citext.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/citext.sgml,v 1.2 2008/09/12 18:29:49 tgl Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/citext.sgml,v 1.4 2010/06/29 22:29:13 momjian Exp $ --> <sect1 id="citext"> <title>citext</title> @@ -58,8 +58,8 @@ The <type>citext</> data type allows you to eliminate calls to <function>lower</> in SQL queries, and allows a primary key to be case-insensitive. <type>citext</> is locale-aware, just - like <type>text</>, which means that the comparison of uppercase and - lowercase characters is dependent on the rules of + like <type>text</>, which means that the comparison of upper case and + lower case characters is dependent on the rules of the <literal>LC_CTYPE</> locale setting. Again, this behavior is identical to the use of <function>lower</> in queries. But because it's done transparently by the datatype, you don't have to remember to do @@ -205,6 +205,15 @@ will need two indexes if you want both types of searches to be fast. </para> </listitem> + + <listitem> + <para> + The schema containing the <type>citext</> operators must be + in the current <varname>search_path</> (typically <literal>public</>); + if it is not, a normal case-sensitive <type>text</> comparison + is performed. + </para> + </listitem> </itemizedlist> </sect2> |