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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2006-06-21 18:30:19 +0000 |
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| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2006-06-21 18:30:19 +0000 |
| commit | 62ae14545b35798fcb51bfd0aa9b5038ad6a07ff (patch) | |
| tree | 15bdbb7ec8c8edad6ca2973797b7196cd3a1d628 /src/tutorial/complex.c | |
| parent | e582d2ee1a149502f49c7a337707b4a0f940a51d (diff) | |
| download | postgresql-62ae14545b35798fcb51bfd0aa9b5038ad6a07ff.tar.gz postgresql-62ae14545b35798fcb51bfd0aa9b5038ad6a07ff.zip | |
Disallow aggregate functions in UPDATE commands (unless within a sub-SELECT).
This is disallowed by the SQL spec because it doesn't have any very sensible
interpretation. Historically Postgres has allowed it but behaved strangely.
As of PG 8.1 a server crash is possible if the MIN/MAX index optimization gets
applied; rather than try to "fix" that, it seems best to just enforce the
spec restriction. Per report from Josh Drake and Alvaro Herrera.
Diffstat (limited to 'src/tutorial/complex.c')
0 files changed, 0 insertions, 0 deletions