xianyinxin commented on a change in pull request #25626: [SPARK-28892][SQL] Add
UPDATE support for DataSource V2
URL: https://github.com/apache/spark/pull/25626#discussion_r320711408
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala
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@@ -352,6 +352,36 @@ class AstBuilder(conf: SQLConf) extends
SqlBaseBaseVisitor[AnyRef] with Logging
DeleteFromStatement(tableId, tableAlias,
expression(ctx.whereClause().booleanExpression()))
}
+ override def visitUpdateTable(ctx: UpdateTableContext): LogicalPlan =
withOrigin(ctx) {
+ val tableId = visitMultipartIdentifier(ctx.multipartIdentifier)
+ val tableAlias = if (ctx.tableAlias() != null) {
+ val ident = ctx.tableAlias().strictIdentifier()
+ // We do not allow columns aliases after table alias.
+ if (ctx.tableAlias().identifierList() != null) {
+ throw new ParseException("Columns aliases is not allowed in UPDATE.",
+ ctx.tableAlias().identifierList())
+ }
+ if (ident != null) { Some(ident.getText) } else { None }
Review comment:
Done.
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