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All the Perl that's Practical to Extract and Report

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Open Source Databases 3 Comments More | Login | Reply /

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  • Couldn't you... (Score:3, Insightful)

    by jordan (120) on 2002.08.25 7:08 (#12149) Homepage Journal
    Just permanent table for this use? I've done this when I wanted something I was doing repeatedly to go the fastest possible. I found there was some overhead to creating the temporary table, so I just created a permanent table and reused it.
    • That's the work around that I've done for now. Unfortunately it's a fair bit slower than the temporary table system, because it has to have an extra column (pid), which has to be permanently indexed, thus inserts are slower, and selects and updates are slower because they have to use the index. Nuts.
      • It's been a few years since I did that app where I replaced a temporary table with a permanent one and I recall that there were other advantages to making the data (semi-)permanent.

        I recall now that the real speedup was that the data was time-tagged. I had been performing big selects against the database for data, inserting data from a time range in the temporary table and performing reports off of this. I was able to take advantage of the fact that subsequent runs would need data mostly in the same time

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