peter-toth commented on code in PR #55519:
URL: https://github.com/apache/spark/pull/55519#discussion_r3166930325
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala:
##########
@@ -2142,15 +2142,18 @@ object SQLConf {
.booleanConf
.createWithDefault(false)
- val V2_BUCKETING_ALLOW_JOIN_KEYS_SUBSET_OF_PARTITION_KEYS =
-
buildConf("spark.sql.sources.v2.bucketing.allowJoinKeysSubsetOfPartitionKeys.enabled")
- .doc("Whether to allow storage-partition join in the case where join
keys are " +
- "a subset of the partition keys of the source tables. At planning
time, " +
- "Spark will group the partitions by only those keys that are in the
join keys. " +
+ val V2_BUCKETING_ALLOW_KEYS_SUBSET_OF_PARTITION_KEYS =
+
buildConf("spark.sql.sources.v2.bucketing.allowKeysSubsetOfPartitionKeys.enabled")
+
.withAlternative("spark.sql.sources.v2.bucketing.allowJoinKeysSubsetOfPartitionKeys.enabled")
+ .doc("Whether to allow storage-partitioned operations (joins and
aggregates) in the case " +
+ "where the operation's keys are a subset of the partition keys of the
source tables. At " +
+ "planning time, Spark will group the partitions by only those keys
that are in the " +
+ "operation's keys. " +
s"This is currently enabled only if
${REQUIRE_ALL_CLUSTER_KEYS_FOR_DISTRIBUTION.key} " +
"is false."
)
.version("4.0.0")
Review Comment:
Makes sense, added in
https://github.com/apache/spark/pull/55519/commits/bcf0be11509865da1ff96ea43bb2b066608a8771.
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