If that particular column is not indexed, I suggest index it, as you need it.

If this is a write-mostly, query-infrequently table, indexing could significantly degrade performance. For log/audit files that record large numbers of miscellaneous value, indexing the values is rarely an effective strategy.

In reply to Re: Re: Re: Re: Heap sorting in perl by dws
in thread Heap sorting in perl by blakem

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