dongjoon-hyun commented on code in PR #39512:
URL: https://github.com/apache/spark/pull/39512#discussion_r1068470209
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sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala:
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@@ -513,6 +513,14 @@ object SQLConf {
.booleanConf
.createWithDefault(false)
+ val MAX_SINGLE_PARTITION_BYTES =
buildConf("spark.sql.maxSinglePartitionBytes")
+ .internal()
+ .doc("The maximum number of bytes allowed for a single partition.
Otherwise, The planner " +
+ "will introduce shuffle to improve parallelism.")
+ .version("3.4.0")
+ .bytesConf(ByteUnit.BYTE)
+ .createWithDefaultString("128MB")
Review Comment:
For the safety, can we use more higher value, @wangyum ?
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