Greg Stark <[EMAIL PROTECTED]> writes:
> Here's a small patch to add the full suite of btree operators for tids
> and the corresponding btree opclass.

Having just felt a need for MAX(tid) and MIN(tid) to look into a
performance issue, I went ahead and committed this.  I'm aware that
your later patch for online indexes subsumes this, but that didn't
seem ready to apply ...

                        regards, tom lane

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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

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