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    from 794804e  [SPARK-28537][SQL] DebugExec cannot debug broadcast or 
columnar related queries
     add 6fb79af  [SPARK-28344][SQL] detect ambiguous self-join and fail the 
query

No new revisions were added by this update.

Summary of changes:
 docs/sql-migration-guide-upgrade.md                |  12 +-
 .../spark/sql/catalyst/analysis/Analyzer.scala     |   5 +-
 .../org/apache/spark/sql/internal/SQLConf.scala    |   7 +
 .../main/scala/org/apache/spark/sql/Column.scala   |  19 +-
 .../main/scala/org/apache/spark/sql/Dataset.scala  |  42 ++++-
 .../analysis/DetectAmbiguousSelfJoin.scala         | 162 ++++++++++++++++
 .../sql/internal/BaseSessionStateBuilder.scala     |   4 +-
 .../apache/spark/sql/DataFrameAggregateSuite.scala |  15 ++
 .../org/apache/spark/sql/DataFrameJoinSuite.scala  |  51 -----
 .../apache/spark/sql/DataFrameSelfJoinSuite.scala  | 205 +++++++++++++++++++++
 .../spark/sql/hive/HiveSessionStateBuilder.scala   |   4 +-
 .../spark/sql/hive/HiveDataFrameJoinSuite.scala    |  38 ----
 12 files changed, 459 insertions(+), 105 deletions(-)
 create mode 100644 
sql/core/src/main/scala/org/apache/spark/sql/execution/analysis/DetectAmbiguousSelfJoin.scala
 create mode 100644 
sql/core/src/test/scala/org/apache/spark/sql/DataFrameSelfJoinSuite.scala
 delete mode 100644 
sql/hive/src/test/scala/org/apache/spark/sql/hive/HiveDataFrameJoinSuite.scala


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