HyukjinKwon commented on code in PR #38429:
URL: https://github.com/apache/spark/pull/38429#discussion_r1008973576
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sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala:
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@@ -3097,6 +3097,16 @@ object SQLConf {
.booleanConf
.createWithDefault(true)
+ val ALWAYS_INLINE_ONE_ROW_RELATION_SUBQUERY =
+
buildConf("spark.sql.optimizer.optimizeOneRowRelationSubquery.alwaysInline")
+ .internal()
+ .doc(s"When true, the optimizer will always inline single row subqueries
even if it " +
+ s"causes extra duplication. It only takes effect when " +
Review Comment:
```suggestion
"causes extra duplication. It only takes effect when " +
```
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