Re: [GENERAL] DELETE Weirdness

2010-01-14 Thread Jeff Davis
On Fri, 2010-01-15 at 13:55 +1300, Ravi Chemudugunta wrote: > I cannot quite understand this; Are the contents of the IN query > worked out ONCE per outer query and therefore become invalid when > DELETE comes along and changes items that were part of the set ? (for > e.g.) The command itself gets

[GENERAL] DELETE Weirdness

2010-01-14 Thread Ravi Chemudugunta
There are two ways of deleting things, DELETE FROM WHERE PK IN ( ...SET... ); DELETE FROM USING WHERE AND ; I am deleting from a table where the rows are inter-related (it is a tree); using the first version with IN, it does not delete all rows; there is a trigger that rearranges the rows wh