xuanyuanking commented on a change in pull request #29712:
URL: https://github.com/apache/spark/pull/29712#discussion_r486900613
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
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@@ -2732,6 +2732,17 @@ object SQLConf {
.booleanConf
.createWithDefault(false)
+ val LEGACY_EXTRA_OPTIONS_BEHAVIOR =
+ buildConf("spark.sql.legacy.extraOptionsBehavior.enabled")
+ .internal()
+ .doc("When true, the extra options will be ignored for
DataFrameReader.table(). If set it " +
+ "to false, which is the default, Spark will check if the extra options
have the same " +
+ "key, but the value is different with the table properties. If the
check passes, the " +
+ "extra options will be merged. Otherwise, an exception will be
thrown.")
Review comment:
Thanks, done in 05aa245.
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