fuwhu commented on a change in pull request #26356: [SPARK-29707][SQL] Add
configuration 'spark.sql.maxDataSourceScanMetadataStringLength'
URL: https://github.com/apache/spark/pull/26356#discussion_r342856661
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
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@@ -1961,6 +1961,14 @@ object SQLConf {
.intConf
.createWithDefault(25)
+ val MAX_DATA_SOURCE_SCAN_METADATA_STRING_LENGTH =
+ buildConf("spark.sql.maxDataSourceScanMetadataStringLength")
+ .doc("Maximum string length for one metadata of `DataSourceScanExec`.
This is used in " +
Review comment:
Yes, currently it is only used in DataSourceScanExec. I checked all the
implementations of TreeNode.simpleString method, now, no other instance has
metadata contained in simpleString.
I just refined the configuration name and description to make it be able to
cover bigger scope if needed.
@HyukjinKwon @wangyum WDYT?
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