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Re: Is Union Queries run in Parallel form or not.
Posted by: Peter Brawley
Date: October 18, 2017 10:55PM

> You mean it depend on Machine.

That is not an accurate summary of the cited article.

Your problem is that the query engine can't find indexes for your query. If you wan help for that problem, post Show Create Table results for each referenced table, along with the amount of RAM available and your my.cnf settings.

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Re: Is Union Queries run in Parallel form or not.
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