Use index on int equal queries #3272
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Here's the benchmark results of this PR compared to core v5.18.0 using a column of 1 million unique integers.
This shows a nice improvement across the board. The largest improvement in practice will be for users who chain many "OR" conditions together or heavily query an int primary key column (indexed automatically). |
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Any idea why the index makes such little difference at 1000 conditions? Is
there some other overhead that dominates in that case?
On Mon, 1 Apr 2019 at 23.02, James Stone ***@***.***> wrote:
Merged #3272 <#3272> into master.
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If you have a 1000 conditions on a column with index, the query engine must visit 1000 nodes that each must lookup a value. |
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