Details
Major Description
spark2.0.1 unsupports the command " create external table if not exist new_tbl like old_tbl location '/warehouse/new_tbl' "
we tried to modify the sqlbase.g4 file,change
" | CREATE TABLE (IF NOT EXISTS)? target=tableIdentifier
LIKE source=tableIdentifier #createTableLike"
to
" | CREATE EXTERNAL? TABLE (IF NOT EXISTS)? target=tableIdentifier
LIKE source=tableIdentifier locationSpec? #createTableLike"
modify method 'visitCreateTableLike' in scala file 'SparkSqlParser.scala' and update case class CreateTableLikeCommand in 'tables.scala' file
finally we compiled spark and replaced the jars as follow: 'spark-catalyst-2.0.1.jar','spark-sql_2.11-2.0.1.jar', and run the command 'create external table if not exist new_tbl like old_tbl location '/warehouse/new_tbl' successfully .
