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new dc7324e [SPARK-31365][SQL][FOLLOWUP] Refine config document for
nested predicate pushdown
dc7324e is described below
commit dc7324e5e39783995b90e64d4737127c10a210cf
Author: Liang-Chi Hsieh <vii...@gmail.com>
AuthorDate: Thu May 7 09:57:08 2020 +0900
[SPARK-31365][SQL][FOLLOWUP] Refine config document for nested predicate
pushdown
### What changes were proposed in this pull request?
This is a followup to address the
https://github.com/apache/spark/pull/28366#discussion_r420611872 by refining
the SQL config document.
### Why are the changes needed?
Make developers less confusing.
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
Only doc change.
Closes #28468 from viirya/SPARK-31365-followup.
Authored-by: Liang-Chi Hsieh <vii...@gmail.com>
Signed-off-by: Takeshi Yamamuro <yamam...@apache.org>
(cherry picked from commit 9bf738724a3895551464d8ba0d455bc90868983f)
Signed-off-by: Takeshi Yamamuro <yamam...@apache.org>
---
.../src/main/scala/org/apache/spark/sql/internal/SQLConf.scala | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git
a/sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
b/sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
index 8d673c5..6c18280 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
@@ -2070,7 +2070,8 @@ object SQLConf {
.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 " +
+ "columns and/or names containing `dots` to data sources. This
configuration is only " +
+ "effective with file-based data source in DSv1. Currently, Parquet
implements " +
"both optimizations while ORC only supports predicates for names
containing `dots`. The " +
"other data sources don't support this feature yet. So the default
value is 'parquet,orc'.")
.version("3.0.0")
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