Hi,
Is there a way to query the column constraints between the tables of system
catalog.
For example pg_attribute.atttypid---->pg_type.oid. This is described in the
docs of course , but does the system use something like pg_constaint
or the system catalog constraints are enforced only in the code?
Regards,
Gevik.
---------------------------(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
