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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2013-11-06 13:32:26 -0500 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2013-11-06 13:32:26 -0500 |
| commit | aad87e3f25ad751a3d021c139fd3adbbe1d19fce (patch) | |
| tree | 91731d8feeed6fcb3dcca3257d93763b09c1af31 /doc/src/sgml/syntax.sgml | |
| parent | db157fb141df983f6d66209182ef4ac7997588d4 (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/src/sgml/syntax.sgml')
| -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 9e87186bb53..863de8852b0 100644 --- a/doc/src/sgml/syntax.sgml +++ b/doc/src/sgml/syntax.sgml @@ -2464,6 +2464,13 @@ 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> |