Hi,
we have a reporting tool, that sometimes uses this kind of condition.
...WHERE a.field = a.field
To explain this: a.field can be filtered by the user. the user can choose some values. if he does, this condition will be build:
...WHERE a.field IN (1,2,3)
If the user doesn't choose any values the * = * condition is used.
Since 9.1 we're experiencing problems with this construction. Have there been any changes to the planner regarding this?
Ty
Regards, Jasmin