diff options
| author | Tom Lane <tgl@sss.pgh.pa.us> | 2013-11-06 13:32:30 -0500 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2013-11-06 13:32:30 -0500 |
| commit | 352ab596fa5a8a4ceec6d308ebae34176cc09c13 (patch) | |
| tree | 1d0eb4b2a89ed3d3922f15ac6e7ec77deab24718 /doc | |
| parent | 3dd13108ac5f16723d87288c8633f8d347823304 (diff) | |
Prevent creating window functions with default arguments.
Insertion of default arguments doesn't work for window functions, which is
likely to cause a crash at runtime if the implementation code doesn't check
the number of actual arguments carefully. It doesn't seem worth working
harder than this for pre-9.2 branches.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/src/sgml/syntax.sgml | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/doc/src/sgml/syntax.sgml b/doc/src/sgml/syntax.sgml index 0b1e5c4e2f0..7a94870b649 100644 --- a/doc/src/sgml/syntax.sgml +++ b/doc/src/sgml/syntax.sgml @@ -2373,6 +2373,13 @@ SELECT concat_lower_or_upper('Hello', 'World', uppercase := true); having numerous parameters that have default values, named or mixed notation can save a great deal of writing and reduce chances for error. </para> + + <note> + <para> + Named and mixed call notations can currently be used only with regular + functions, not with aggregate functions or window functions. + </para> + </note> </sect2> </sect1> |