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Re: Does DBI handle table alias?by runrig (Abbot) |
on Oct 07, 2004 at 19:47 UTC ( [id://397417]=note: print w/replies, xml ) | Need Help?? |
Just an idea. Are there any duplicate rows in the table? If not, how about, e.g.: I am not sure an index would even help in this case, but I'd at least try one on column_2. Update: As indicated by tall_man below, the effectiveness of the index will depend on the distribution of the data in column_2.
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