Github user felixcheung commented on a diff in the pull request:
https://github.com/apache/spark/pull/20484#discussion_r165573955
--- Diff: docs/sql-programming-guide.md ---
@@ -1776,6 +1776,66 @@ working with timestamps in `pandas_udf`s to get the
best performance, see
## Upgrading From Spark SQL 2.2 to 2.3
+ - Since Spark 2.3, Spark supports a vectorized ORC reader with a new ORC
file format for ORC files and Hive ORC tables. To do that, the following
configurations are newly added or change their default values.
--- End diff --
re: `the following configurations are newly added or change their default
values.`
these are all new, right?
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