Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/12362#discussion_r59621133
--- Diff:
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4 ---
@@ -55,6 +55,7 @@ statement
rowFormat? createFileFormat? locationSpec?
(TBLPROPERTIES tablePropertyList)?
(AS? query)?
#createTable
+ | createTableHeader LIKE source=tableIdentifier
#createTableLike
--- End diff --
actually, what does it mean to provide table properties or row format in a
`CREATE TABLE LIKE` statement? Trying to merge the provided properties with the
existing ones seems complicated and full of corner cases. It might be simpler
to just handle `CREATE TABLE x LIKE y` instead of accepting more things that we
don't know how to handle.
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