explain the concept of fragment elimination in informix ?
Answer / Jogendra
Fragment Elimination is a technique used by Informix to optimize queries with multiple joins and complex conditions. It works by first evaluating each table individually, then combining the results based on join conditions. If one table has fewer matching rows than another, the smaller table's results are eliminated (or 'eliminated as a fragment'), reducing the amount of data that needs to be joined. This speeds up query execution and decreases the load on the system.
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