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adjust the stats for L2 join to get more dop #20437

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merged 3 commits into from
Nov 28, 2024
Merged

adjust the stats for L2 join to get more dop #20437

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025382d
fix
badboynt1 Nov 28, 2024
3c6c000
Merge branch 'main' into l2join
badboynt1 Nov 28, 2024
bf259bf
Merge branch 'main' into l2join
mergify[bot] Nov 28, 2024
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16 changes: 15 additions & 1 deletion pkg/sql/plan/stats.go
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Original file line number Diff line number Diff line change
Expand Up @@ -880,50 +880,64 @@ func ReCalcNodeStats(nodeID int32, builder *QueryBuilder, recursive bool, leafNo
node.Stats.Cost = leftStats.Cost + rightStats.Cost
node.Stats.HashmapStats.HashmapSize = rightStats.Outcnt
node.Stats.Selectivity = selectivity_out
node.Stats.BlockNum = leftStats.BlockNum

case plan.Node_LEFT:
node.Stats.Outcnt = leftStats.Outcnt
node.Stats.Cost = leftStats.Cost + rightStats.Cost
node.Stats.HashmapStats.HashmapSize = rightStats.Outcnt
node.Stats.Selectivity = selectivity_out
node.Stats.BlockNum = leftStats.BlockNum

case plan.Node_RIGHT:
node.Stats.Outcnt = rightStats.Outcnt
node.Stats.Cost = leftStats.Cost + rightStats.Cost
node.Stats.HashmapStats.HashmapSize = rightStats.Outcnt
node.Stats.Selectivity = selectivity
node.Stats.BlockNum = leftStats.BlockNum

case plan.Node_DEDUP:
node.Stats.Outcnt = rightStats.Outcnt
node.Stats.Cost = leftStats.Cost + rightStats.Cost
node.Stats.HashmapStats.HashmapSize = rightStats.Outcnt
node.Stats.Selectivity = selectivity
node.Stats.BlockNum = leftStats.BlockNum

case plan.Node_OUTER:
node.Stats.Outcnt = leftStats.Outcnt + rightStats.Outcnt
node.Stats.Cost = leftStats.Cost + rightStats.Cost
node.Stats.HashmapStats.HashmapSize = rightStats.Outcnt
node.Stats.Selectivity = selectivity_out
node.Stats.BlockNum = leftStats.BlockNum

case plan.Node_SEMI, plan.Node_INDEX:
node.Stats.Outcnt = leftStats.Outcnt * selectivity
node.Stats.Cost = leftStats.Cost + rightStats.Cost
node.Stats.HashmapStats.HashmapSize = rightStats.Outcnt
node.Stats.Selectivity = selectivity_out
node.Stats.BlockNum = leftStats.BlockNum

case plan.Node_ANTI:
node.Stats.Outcnt = leftStats.Outcnt * (1 - rightStats.Selectivity) * 0.5
node.Stats.Cost = leftStats.Cost + rightStats.Cost
node.Stats.HashmapStats.HashmapSize = rightStats.Outcnt
node.Stats.Selectivity = selectivity_out
node.Stats.BlockNum = leftStats.BlockNum

case plan.Node_SINGLE, plan.Node_MARK:
node.Stats.Outcnt = leftStats.Outcnt
node.Stats.Cost = leftStats.Cost + rightStats.Cost
node.Stats.HashmapStats.HashmapSize = rightStats.Outcnt
node.Stats.Selectivity = selectivity_out
node.Stats.BlockNum = leftStats.BlockNum

case plan.Node_L2: //L2 join is very time-consuming, increase the cost to get more dop
node.Stats.Outcnt = leftStats.Outcnt
node.Stats.Cost = (leftStats.Cost + rightStats.Cost) * 8
node.Stats.HashmapStats.HashmapSize = rightStats.Outcnt
node.Stats.Selectivity = selectivity_out
node.Stats.BlockNum = leftStats.BlockNum * 8
}
node.Stats.BlockNum = leftStats.BlockNum

case plan.Node_AGG:
if needResetHashMapStats {
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