[spark] branch master updated (a3e7777 -> a7451f4)

[we...@apache.org]

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    from a3e7777  [SPARK-30752][SQL] Fix `to_utc_timestamp` on daylight saving day
     add a7451f4  [SPARK-30614][SQL] The native ALTER COLUMN syntax should change one property at a time

No new revisions were added by this update.

Summary of changes:
 .../apache/spark/sql/catalyst/parser/SqlBase.g4    | 14 ++--
 .../spark/sql/catalyst/parser/AstBuilder.scala     | 78 ++++++++++++----------
 .../spark/sql/catalyst/parser/DDLParserSuite.scala | 23 ++++---
 .../catalyst/analysis/ResolveSessionCatalog.scala  | 24 ++++---
 .../resources/sql-tests/inputs/change-column.sql   | 21 +++---
 .../sql-tests/results/change-column.sql.out        | 46 ++++++++++---
 .../spark/sql/connector/AlterTableTests.scala      | 13 ----
 .../spark/sql/execution/command/DDLSuite.scala     |  5 +-
 .../execution/command/PlanResolutionSuite.scala    | 47 +++++++++----
 9 files changed, 165 insertions(+), 106 deletions(-)


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