rdblue commented on code in PR #5083:
URL: https://github.com/apache/iceberg/pull/5083#discussion_r901955352
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spark/v3.2/spark-extensions/src/main/scala/org/apache/spark/sql/catalyst/analysis/RewriteDeleteFromTable.scala:
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@@ -49,25 +51,42 @@ import
org.apache.spark.sql.execution.datasources.v2.DataSourceV2Relation
object RewriteDeleteFromTable extends RewriteRowLevelCommand {
override def apply(plan: LogicalPlan): LogicalPlan = plan resolveOperators {
- case d @ DeleteFromIcebergTable(aliasedTable, Some(cond), None) if
d.resolved =>
+ case d @ DeleteFromIcebergTable(aliasedTable, Some(_), None) if d.resolved
=>
EliminateSubqueryAliases(aliasedTable) match {
case r @ DataSourceV2Relation(tbl: SupportsRowLevelOperations, _, _,
_, _) =>
- val operation = buildRowLevelOperation(tbl, DELETE)
- val table = RowLevelOperationTable(tbl, operation)
- val rewritePlan = operation match {
- case _: SupportsDelta =>
- buildWriteDeltaPlan(r, table, cond)
- case _ =>
- buildReplaceDataPlan(r, table, cond)
+ rewriteDeleteFromTable(d, r, tbl)
+ case v: View =>
+ val relations = v.children.collect { case r: DataSourceV2Relation if
r.table.isInstanceOf[SparkTable] =>
Review Comment:
I think the logic here needs to be much more strict. I think this should
validate that `v.child` is the `DataSourceV2Relation`. Almost any other nodes
in the logical plan would make this invalid. For example, if you had registered
`table.select(...)` instead of just `table`, then it is unclear what deleting
from that view should do. We only want to support this if the plan is only a
relation.
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