Richard Huxton wrote: > Alban Hertroys wrote: >> Naz Gassiep wrote: >>> Hi, >>> I'm trying to do an update on a table that has a unique constraint >>> on the field, I need to update the table by setting field = field+1 > >> I think you're looking for deferrable constraints; see: >> >> http://www.postgresql.org/docs/8.2/static/sql-set-constraints.html > > Which won't work with unique constraints unfortunately. That's because > they're implemented through a unique index.
I appreciate the complexities involved, but that really ought to work on a single statement. I recall seeing something along these lines on the TODO list some time ago? -- Alban Hertroys [EMAIL PROTECTED] magproductions b.v. T: ++31(0)534346874 F: ++31(0)534346876 M: I: www.magproductions.nl A: Postbus 416 7500 AK Enschede // Integrate Your World // ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match