[spark] branch branch-3.0 updated: [SPARK-31365][SQL][FOLLOWUP] Refine config document for nested predicate pushdown

[ya...@apache.org]

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yamamuro pushed a commit to branch branch-3.0
in repository https://gitbox.apache.org/repos/asf/spark.git


The following commit(s) were added to refs/heads/branch-3.0 by this push:
     new dc7324e  [SPARK-31365][SQL][FOLLOWUP] Refine config document for nested predicate pushdown
dc7324e is described below

commit dc7324e5e39783995b90e64d4737127c10a210cf
Author: Liang-Chi Hsieh <vi...@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 <vi...@gmail.com>
    Signed-off-by: Takeshi Yamamuro <ya...@apache.org>
    (cherry picked from commit 9bf738724a3895551464d8ba0d455bc90868983f)
    Signed-off-by: Takeshi Yamamuro <ya...@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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