Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/20133#discussion_r159364557 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/SparkSqlParser.scala --- @@ -383,23 +383,34 @@ class SparkSqlAstBuilder(conf: SQLConf) extends AstBuilder(conf) { * {{{ * CREATE [TEMPORARY] TABLE [IF NOT EXISTS] [db_name.]table_name * USING table_provider - * [OPTIONS table_property_list] - * [PARTITIONED BY (col_name, col_name, ...)] - * [CLUSTERED BY (col_name, col_name, ...) - * [SORTED BY (col_name [ASC|DESC], ...)] - * INTO num_buckets BUCKETS - * ] - * [LOCATION path] - * [COMMENT table_comment] - * [TBLPROPERTIES (property_name=property_value, ...)] + * create_table_clauses * [[AS] select_statement]; + * + * create_table_clauses (order insensitive): + * [OPTIONS table_property_list] + * [PARTITIONED BY (col_name, col_name, ...)] + * [CLUSTERED BY (col_name, col_name, ...) + * [SORTED BY (col_name [ASC|DESC], ...)] + * INTO num_buckets BUCKETS + * ] + * [LOCATION path] + * [COMMENT table_comment] + * [TBLPROPERTIES (property_name=property_value, ...)] * }}} */ override def visitCreateTable(ctx: CreateTableContext): LogicalPlan = withOrigin(ctx) { val (table, temp, ifNotExists, external) = visitCreateTableHeader(ctx.createTableHeader) if (external) { operationNotAllowed("CREATE EXTERNAL TABLE ... USING", ctx) } + + checkDuplicateClauses(ctx.TBLPROPERTIES, "TBLPROPERTIES", ctx) + checkDuplicateClauses(ctx.OPTIONS, "OPTIONS", ctx) + checkDuplicateClauses(ctx.PARTITIONED, "PARTITIONED BY", ctx) + checkDuplicateClauses(ctx.COMMENT, "COMMENT", ctx) + checkDuplicateClauses(ctx.bucketSpec(), "CLUSTERED BY", ctx) + checkDuplicateClauses(ctx.locationSpec, "LOCATION", ctx) --- End diff -- nit `ctx.LOCATION`?
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