diff options
| author | Tom Lane | 2013-11-13 18:29:45 +0000 |
|---|---|---|
| committer | Tom Lane | 2013-11-13 18:29:45 +0000 |
| commit | 0d6a006df6a3d57a3872d982a273e0e71f091dbd (patch) | |
| tree | b8005710acb9d1b5cd64f09bff23559d126a1ed4 | |
| parent | 8633aa9c3fa73dc9ba7ee5e78d7d5155e7710e0d (diff) | |
Clarify CREATE FUNCTION documentation about handling of typmods.
The previous text was a bit misleading, as well as unnecessarily vague
about what information would be discarded. Per gripe from Craig Skinner.
| -rw-r--r-- | doc/src/sgml/ref/create_function.sgml | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/doc/src/sgml/ref/create_function.sgml b/doc/src/sgml/ref/create_function.sgml index ebdcd8b01b8..c33bab8484a 100644 --- a/doc/src/sgml/ref/create_function.sgml +++ b/doc/src/sgml/ref/create_function.sgml @@ -484,12 +484,13 @@ CREATE [ OR REPLACE ] FUNCTION <para> The full <acronym>SQL</acronym> type syntax is allowed for - input arguments and return value. However, some details of the - type specification (e.g., the precision field for - type <type>numeric</type>) are the responsibility of the - underlying function implementation and are silently swallowed - (i.e., not recognized or - enforced) by the <command>CREATE FUNCTION</command> command. + declaring a function's arguments and return value. However, + parenthesized type modifiers (e.g., the precision field for + type <type>numeric</type>) are discarded by <command>CREATE FUNCTION</>. + Thus for example + <literal>CREATE FUNCTION foo (varchar(10)) ...</> + is exactly the same as + <literal>CREATE FUNCTION foo (varchar) ...</>. </para> <para> |