dongjoon-hyun commented on a change in pull request #30047:
URL: https://github.com/apache/spark/pull/30047#discussion_r505162258
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
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@@ -1458,6 +1458,15 @@ object SQLConf {
.booleanConf
.createWithDefault(true)
+ val JSON_EXPRESSION_OPTIMIZATION =
+ buildConf("spark.sql.optimizer.jsonExpressionOptimization")
+ .doc("Whether to optimize Json expressions in SQL optimizer. It includes
pruning " +
+ "unnecessary columns from from_json, simplifing from_json + to_json,
to_json + " +
+ "named_struct(from_json.col1, from_json.col2, ....).")
+ .version("3.1.0")
+ .booleanConf
+ .createWithDefault(true)
Review comment:
Thank you for adding this, @viirya .
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