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| -rw-r--r-- | doc/src/sgml/typeconv.sgml | 26 |
1 files changed, 1 insertions, 25 deletions
diff --git a/doc/src/sgml/typeconv.sgml b/doc/src/sgml/typeconv.sgml index 216b339bd7b..bd68c242b3c 100644 --- a/doc/src/sgml/typeconv.sgml +++ b/doc/src/sgml/typeconv.sgml @@ -1,5 +1,5 @@ <!-- -$PostgreSQL: pgsql/doc/src/sgml/typeconv.sgml,v 1.39 2003/11/29 19:51:38 pgsql Exp $ +$PostgreSQL: pgsql/doc/src/sgml/typeconv.sgml,v 1.40 2003/12/01 21:53:15 momjian Exp $ --> <chapter Id="typeconv"> @@ -437,30 +437,6 @@ SELECT @ '-4.5e500' AS "abs"; ERROR: "-4.5e500" is out of range for type double precision </screen> </para> - -<para> -On the other hand, the postfix operator <literal>!</> (factorial) -is defined only for integer data types, not for <type>float8</type>. So, if we -try a similar case with <literal>!</>, we get: -<screen> -SELECT '20' ! AS "factorial"; - -ERROR: operator is not unique: "unknown" ! -HINT: Could not choose a best candidate operator. You may need to add explicit -type casts. -</screen> -This happens because the system can't decide which of the several -possible <literal>!</> operators should be preferred. We can help -it out with an explicit cast: -<screen> -SELECT CAST('20' AS int8) ! AS "factorial"; - - factorial ---------------------- - 2432902008176640000 -(1 row) -</screen> -</para> </example> </sect1> |