Christopher Kings-Lynne <chriskl@familyhealth.com.au> writes:
> Surely in the real world REINDEX is run so rarely compared to all those other
> operations it'd be a win...
It's not a question of frequency. We're not talking about something like a 10%
performance loss. You're talking about whether REINDEX is useful at all.
Consider installations where REINDEX will require shutting down business
critical operations for days...
It was a *major* new feature that many people were waiting for when Oracle
finally implemented live CREATE INDEX and REINDEX. The ability to run create
an index without blocking any operations on a table, even updates, was
absolutely critical for 24x7 operation.
--
greg