Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/16638#discussion_r97446466
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/SparkSqlParser.scala ---
@@ -1140,14 +1140,18 @@ class SparkSqlAstBuilder(conf: SQLConf) extends
AstBuilder {
*
* For example:
* {{{
- * CREATE TABLE [IF NOT EXISTS] [db_name.]table_name
- * LIKE [other_db_name.]existing_table_name
+ * CREATE [EXTERNAL] TABLE [IF NOT EXISTS] [db_name.]table_name
+ * LIKE [other_db_name.]existing_table_name [locationSpec]
* }}}
*/
override def visitCreateTableLike(ctx: CreateTableLikeContext):
LogicalPlan = withOrigin(ctx) {
val targetTable = visitTableIdentifier(ctx.target)
val sourceTable = visitTableIdentifier(ctx.source)
- CreateTableLikeCommand(targetTable, sourceTable, ctx.EXISTS != null)
+ val location = Option(ctx.locationSpec).map(visitLocationSpec)
+ if (ctx.EXTERNAL != null && location.isEmpty) {
--- End diff --
Add a comment here:
```
// If we are creating an EXTERNAL table, then the LOCATION field is
required
```
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