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Re: Index on bigint or decimal(10,0)?
Posted by: Øystein Grøvlen
Date: September 25, 2018 08:25AM

Hi,

I do not have specific numbers to back this up, but my experience is that BIGINT is more efficient than DECIMAL. However, that is wrt arithmetic operations. I would think that for comparisons, which is what is needed for joins, the difference will be less significant.

Øystein Grøvlen,
Senior Principal Software Engineer,
MySQL Group, Oracle,
Trondheim, Norway

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