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Parallel BitmapHeapScan Exclusive Time #696

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SkyMarshall939 opened this issue Feb 10, 2025 · 0 comments
Open

Parallel BitmapHeapScan Exclusive Time #696

SkyMarshall939 opened this issue Feb 10, 2025 · 0 comments

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@SkyMarshall939
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Hello,

I am currently experiencing a problem with the calculation of EXCLUSIVE times for BitmapHeapScan/BitmapIndexScan with workers.

With the following plan https://explain.dalibo.com/plan/7a74fb44bggc5b9g ( text )

It seems that PEV2 divides the BitmapIndexScan time as if it were using Workers. This is not normally the case.

We got the same behavior with this plan : https://explain.dalibo.com/plan/g75eg7d22dcbd66b ( json )

( I am relying on the following document : https://www.postgresql.org/docs/current/parallel-plans.html#PARALLEL-SCANS . )

Could you please address this issue ?

Best regards,
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@SkyMarshall939