Comments (2)
Might have been caused by #20947
from presto.
I added the stats information to the "actual" plan that gets printed for failures. So far I've gotten one failure out of several thousand runs. It looks like sometimes the HBO stats for the filter node are logged as 0 rows and 0 bytes (in the test we check that it's 2 rows and 199 bytes). The output node stats for that same run are noted as 2 rows and 199 bytes. Possibly a real bug or race condition of some kind for HBO.
- Output[PlanNodeId 6][nationkey, name, regionkey, comment] => [nationkey:bigint, name:varchar(25), regionkey:bigint, comment:varchar(152)]
Estimates: {source: HistoryBasedSourceInfo, rows: 2 (199B), cpu: ?, memory: ?, network: ?}
- ScanFilter[PlanNodeId 0,108][table = TableHandle {connectorId='tpch', connectorHandle='nation:sf0.01', layout='Optional[nation:sf0.01]'}, filterPredicate = (substr(name, BIGINT'1', BIGINT'1')) = (VARCHAR'A')] => [nationkey:bigint, name:varchar(25), regionkey:bigint, comment:varchar(152)]
Estimates: {source: CostBasedSourceInfo, rows: 25 (2.67kB), cpu: ?, memory: ?, network: ?}/{source: HistoryBasedSourceInfo, rows: 0 (0B), cpu: ?, memory: ?, network: ?}
regionkey := tpch:regionkey (1:15)
name := tpch:name (1:15)
nationkey := tpch:nationkey (1:15)
comment := tpch:comment (1:15)
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