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Ray Paseur
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MySQL JOIN Clause

Scenario:  I have two MySQL tables.  Both of them have an index on the column called "foo."  

1. I run a SELECT query and use a JOIN clause naming "foo" in the two tables.  I get a results set giving the intersection of the tables on "foo."

2. I remove the index from one or both of the tables and rerun the query in #1.

Will I get the same results set from the second (unindexed) SELECT?  Or does the presence of an index affect the results of JOIN?
MySQL ServerSQL

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Ray Paseur

8/22/2022 - Mon
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John Easton

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Guy Hengel [angelIII / a3]

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Ray Paseur

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