MySQL Explain - nimrody/knowledgebase GitHub Wiki
MySQL Explain
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Extra: Using Where -- a covering index is scanned and the table is skipped
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Possible keys - keys from which MySQL can choose
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Keys - the actual keys used
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Rows - rows scanned
Extra: Using Where -- a covering index is scanned and the table is skipped
Possible keys - keys from which MySQL can choose
Keys - the actual keys used
Rows - rows scanned