aokolnychyi commented on code in PR #55518:
URL: https://github.com/apache/spark/pull/55518#discussion_r3787082425
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/RewriteUpdateTable.scala:
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@@ -155,29 +254,125 @@ object RewriteUpdateTable extends RewriteRowLevelCommand
{
val operation = operationTable.operation.asInstanceOf[SupportsDelta]
- // resolve all needed attrs (e.g. row ID and any required metadata attrs)
+ // resolve all needed attrs (e.g. row ID, any required metadata attrs and
optionally connector
+ // declared attrs)
val rowAttrs = relation.output
+ val supportsColumnUpdate = operation.isInstanceOf[SupportsColumnUpdates]
+ val connectorDataAttrs = if (supportsColumnUpdate) {
+ resolveConnectorDataAttrs(relation, operation)
+ } else Nil
+ val scanOnlyDataAttrs = if (supportsColumnUpdate) {
+ resolveScanOnlyDataAttrs(relation, operation)
+ } else Nil
+
+ if (supportsColumnUpdate) {
+ validateUpdatedColumnsSubset(operation, assignments, connectorDataAttrs)
+ validateNoOverlap(operation, connectorDataAttrs, scanOnlyDataAttrs)
+ validatePartitionAttrsDeclared(operation, relation, connectorDataAttrs,
scanOnlyDataAttrs)
+ }
+
+
val rowIdAttrs = resolveRowIdAttrs(relation, operation)
val metadataAttrs = resolveRequiredMetadataAttrs(relation, operation)
- // construct a read relation and include all required metadata columns
- val readRelation = buildRelationWithAttrs(relation, operationTable,
metadataAttrs, rowIdAttrs)
+ if (supportsColumnUpdate && operation.representUpdateAsDeleteAndInsert) {
+ validateNoRowIdReassignment(operation, assignments, rowIdAttrs)
Review Comment:
I am not sure I understand this validation. Specifically,
validateRowIdDeclared seems wrong. What if my row id is a metadata column?
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