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Posted to commits@cloudberry.apache.org by "avamingli (via GitHub)" <gi...@apache.org> on 2025/05/23 06:28:43 UTC
Re: [PR] Cherry pick NodeSummary in EXPLAIN ANALYZE [cloudberry]
avamingli commented on PR #1114:
URL: https://github.com/apache/cloudberry/pull/1114#issuecomment-2903403873
Hi, thanks for test parallel plan. Could you add the parallel cases into test too?
> Gather Motion 6:1 (slice1; segments: 6) (cost=0.00..548.21 rows=28700 width=8) (actual time=1.000..53.000 rows=499500 loops=1)
> Node Summary: vmax vsum vcnt imax
> ntuples: 499500 499500 1 -1
> nloops: 1 1 1 -1
> execmemused: 0 0 0 0
> workmemused: 0 0 0 0
> workmemwanted: 0 0 0 0
> totalWorkfileCreated: 0 0 0 0
> totalPartTableScanned: 0 0 0 0
> segindex0: -1
> ninst: 1
> StatInsts:
> (segN) pstype starttime counter firsttuple startup total ntuples ntuples2 nloops nfiltered1 nfiltered2 execmemused workmemused workmemwanted workfileCreate
> d firststart numPartScanned bnotes enotes, nworkers_launched
> (seg-1) 138 0 0 0.00 0.00 0.05 499500 0 1 0 0 0 0 0 0 1798033 0 0 0 0
> -> Parallel Seq Scan
I guess the plan is 2-parallel workers on a 3-segment cluster, is it?
Then the **nworkers_launched** at the last field of `(seg-1) 138 0 0 0.00 0.00 0.05 499500 0 1 0 0 0 0 0 0 1798033 0 0 0 0` should be 2 but not 0?
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