update comment

angelamayxie · angelamayxie · commit 393ab2f7f8fa · 2025-11-03T16:16:24.000-08:00
diff --git a/sql/func_deps.go b/sql/func_deps.go
@@ -666,7 +666,7 @@ func NewLeftJoinFDs(left, right *FuncDepSet, filters [][2]ColumnId) *FuncDepSet
 	for _, equiv := range left.equivs.Sets() {
 		ret.AddEquivSet(equiv)
 	}
-	// add equiv filters only if right-side column is not null
+	// add equiv filters only if right-side column is not nullable
 	for _, f := range filters {
 		if right.notNull.Contains(f[0]) || right.notNull.Contains(f[1]) {
 			ret.AddEquiv(f[0], f[1])

Original file line number	Diff line number	Diff line change
`@@ -666,7 +666,7 @@ func NewLeftJoinFDs(left, right FuncDepSet, filters [][2]ColumnId) FuncDepSet`
`666`	`666`	`for _, equiv := range left.equivs.Sets() {`
`667`	`667`	`ret.AddEquivSet(equiv)`
`668`	`668`	`}`
`669`		`- // add equiv filters only if right-side column is not null`
	`669`	`+ // add equiv filters only if right-side column is not nullable`
`670`	`670`	`for _, f := range filters {`
`671`	`671`	`if right.notNull.Contains(f[0]) \|\| right.notNull.Contains(f[1]) {`
`672`	`672`	`ret.AddEquiv(f[0], f[1])`