rdblue commented on a change in pull request #24723: [SPARK-27857][SQL] Move
ALTER TABLE parsing into Catalyst
URL: https://github.com/apache/spark/pull/24723#discussion_r289941517
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/DataSourceResolution.scala
##########
@@ -98,6 +98,42 @@ case class DataSourceResolution(
case DropViewStatement(AsTableIdentifier(tableName), ifExists) =>
DropTableCommand(tableName, ifExists, isView = true, purge = false)
+
+ case AlterTableSetPropertiesStatement(AsTableIdentifier(table),
properties) =>
+ AlterTableSetPropertiesCommand(table, properties, isView = false)
+
+ case AlterViewSetPropertiesStatement(AsTableIdentifier(table), properties)
=>
+ AlterTableSetPropertiesCommand(table, properties, isView = true)
+
+ case AlterTableUnsetPropertiesStatement(AsTableIdentifier(table),
propertyKeys, ifExists) =>
+ AlterTableUnsetPropertiesCommand(table, propertyKeys, ifExists, isView =
false)
+
+ case AlterViewUnsetPropertiesStatement(AsTableIdentifier(table),
propertyKeys, ifExists) =>
+ AlterTableUnsetPropertiesCommand(table, propertyKeys, ifExists, isView =
true)
+
+ case AlterTableSetLocationStatement(AsTableIdentifier(table), newLocation)
=>
+ AlterTableSetLocationCommand(table, None, newLocation)
+
+ case AlterTableAddColumnsStatement(AsTableIdentifier(table), newColumns)
+ if newColumns.forall(_.name.size == 1) =>
+ // only top-level adds are supported using AlterTableAddColumnsCommand
+ val newFields = newColumns.map { newCol =>
+ val builder = new MetadataBuilder
+ newCol.comment.foreach(builder.putString("comment", _))
+
+ val cleanedDataType = HiveStringType.replaceCharType(newCol.dataType)
+ if (newCol.dataType != cleanedDataType) {
+ builder.putString(HIVE_TYPE_STRING, newCol.dataType.catalogString)
+ }
+
+ StructField(
+ newCol.name.head,
+ cleanedDataType,
+ nullable = true,
+ builder.build())
+ }
Review comment:
Done.
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