dbtsai commented on a change in pull request #28366:
URL: https://github.com/apache/spark/pull/28366#discussion_r418766235
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
##########
@@ -2063,16 +2063,17 @@ object SQLConf {
.booleanConf
.createWithDefault(true)
- val NESTED_PREDICATE_PUSHDOWN_ENABLED =
- buildConf("spark.sql.optimizer.nestedPredicatePushdown.enabled")
- .internal()
- .doc("When true, Spark tries to push down predicates for nested columns
and or names " +
- "containing `dots` to data sources. Currently, Parquet implements both
optimizations " +
- "while ORC only supports predicates for names containing `dots`. The
other data sources" +
- "don't support this feature yet.")
+ val NESTED_PREDICATE_PUSHDOWN_V1_SOURCE_LIST =
+ buildConf("spark.sql.optimizer.nestedPredicatePushdown.v1sourceList")
+ .internal()
+ .doc("A comma-separated list of data source short names or fully
qualified data source " +
+ "implementation class names for which Spark tries to push down
predicates for nested " +
+ "columns and or names containing `dots` to data sources. Currently,
Parquet implements " +
+ "both optimizations while ORC only supports predicates for names
containing `dots`. The " +
+ "other data sources don't support this feature yet.")
.version("3.0.0")
- .booleanConf
- .createWithDefault(true)
+ .stringConf
Review comment:
In v1, we don't have any use-case for supporting it in custom data
source. I'm good with it.
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