What are the different optimization techniques in MySQL?

Some of the optimization techniques in MySQL are as follows:

  • Range Optimization: In this case we can use a single index to retrieve the subset of data from a table. Now the server has to work on less amount of data.
  • Index Optimization: In this method several range scans can be merged into one result. So index scans from same table can be merged into one dataset.
  • Engine Condition Pushdown Optimization: When we have a direct comparison between a non-indexed column and constant, MySQL optimizer will push the condition to storage engine for evaluation.
  • Index Condition Pushdown Optimization: This is another optimization for selecting rows from a table by using an index.

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