On Tuesday 21 August 2007 11:40 pm, Tom Lane wrote:
> "Ed L." <[EMAIL PROTECTED]> writes:
> > Are there
> > are any known or obvious gotchas associated with
> > transforming a unique index on a non null column into a
> > primary key via this sql?
> >
> > update pg_index
> > set indisprimary = 't'
> > where indexrelid = <my non-null unique index oid>
>
> The problem with that is there won't be any pg_constraint
> entry, nor any pg_depend entries linking to/from the
> constraint...
Thanks. Sounds messy enough, I'll try another route.
Ed
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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
