return best stat

James Cor · James Cor · commit 060625a4c80f · 2025-11-25T14:56:52.000-08:00
diff --git a/sql/analyzer/costed_index_scan.go b/sql/analyzer/costed_index_scan.go
@@ -315,7 +315,7 @@ func getCostedIndexScan(ctx *sql.Context, statsProv sql.StatsProvider, rt sql.Ta
 	}
 
 	var bestStat sql.Statistic
-	if c.bestStat.FuncDeps().HasMax1Row() {
+	if bestStat.FuncDeps().HasMax1Row() {
 		bestStat = c.bestStat.WithRowCount(1).WithDistinctCount(1)
 	} else {
 		bestStat, err = c.bestStat.WithHistogram(c.bestHist)
@@ -332,7 +332,7 @@ func getCostedIndexScan(ctx *sql.Context, statsProv sql.StatsProvider, rt sql.Ta
 		qFlags.Set(sql.QFlagMax1Row)
 	}
 
-	return ret, c.bestStat, retFilters, nil
+	return ret, bestStat, retFilters, nil
 }
 
 func addIndexScans(ctx *sql.Context, m *memo.Memo) error {

Original file line number	Diff line number	Diff line change
`@@ -315,7 +315,7 @@ func getCostedIndexScan(ctx *sql.Context, statsProv sql.StatsProvider, rt sql.Ta`
`315`	`315`	`}`
`316`	`316`
`317`	`317`	`var bestStat sql.Statistic`
`318`		`- if c.bestStat.FuncDeps().HasMax1Row() {`
	`318`	`+ if bestStat.FuncDeps().HasMax1Row() {`
`319`	`319`	`bestStat = c.bestStat.WithRowCount(1).WithDistinctCount(1)`
`320`	`320`	`} else {`
`321`	`321`	`bestStat, err = c.bestStat.WithHistogram(c.bestHist)`
`@@ -332,7 +332,7 @@ func getCostedIndexScan(ctx *sql.Context, statsProv sql.StatsProvider, rt sql.Ta`
`332`	`332`	`qFlags.Set(sql.QFlagMax1Row)`
`333`	`333`	`}`
`334`	`334`
`335`		`- return ret, c.bestStat, retFilters, nil`
	`335`	`+ return ret, bestStat, retFilters, nil`
`336`	`336`	`}`
`337`	`337`
`338`	`338`	`func addIndexScans(ctx sql.Context, m memo.Memo) error {`