yabola commented on code in PR #7184:
URL: https://github.com/apache/kyuubi/pull/7184#discussion_r2329327936
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extensions/spark/kyuubi-spark-lineage/src/main/scala/org/apache/kyuubi/plugin/lineage/helper/SparkSQLLineageParseHelper.scala:
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@@ -53,18 +54,27 @@ trait LineageParser {
type AttributeMap[A] = ListMap[Attribute, A]
def parse(plan: LogicalPlan): Lineage = {
- val columnsLineage =
- extractColumnsLineage(plan, ListMap[Attribute,
AttributeSet]()).toList.collect {
- case (k, attrs) =>
- k.name -> attrs.map(attr => (attr.qualifier :+
attr.name).mkString(".")).toSet
+ val inputTablesByPlan = mutable.HashSet[String]()
+ val columnsLineage = extractColumnsLineage(
+ plan,
+ ListMap[Attribute, AttributeSet](),
+ inputTablesByPlan).toList.collect {
+ case (k, attrs) =>
+ k.name -> attrs.map(attr => (attr.qualifier :+
attr.name).mkString(".")).toSet
+ }
+ val (inputTablesByColumn, outputTables) = columnsLineage
+ .foldLeft((List[String](), List[String]())) {
+ case ((inputs, outputs), (out, in)) =>
+ val x = (inputs ++
in.map(_.split('.').init.mkString("."))).filter(_.nonEmpty)
+ val y = outputs ++
List(out.split('.').init.mkString(".")).filter(_.nonEmpty)
+ (x, y)
}
- val (inputTables, outputTables) = columnsLineage.foldLeft((List[String](),
List[String]())) {
- case ((inputs, outputs), (out, in)) =>
- val x = (inputs ++
in.map(_.split('.').init.mkString("."))).filter(_.nonEmpty)
- val y = outputs ++
List(out.split('.').init.mkString(".")).filter(_.nonEmpty)
- (x, y)
+ if
(SparkContextHelper.getConf(LineageConf.LEGACY_COLLECT_INPUT_TABLES_ENABLED)) {
+ Lineage(inputTablesByColumn.distinct, outputTables.distinct,
columnsLineage)
+ } else {
+ val filteredInputTables = inputTablesByPlan -- outputTables.distinct
Review Comment:
Sorry, my fault. I reconfirmed that databricks will include `a` as
upstream table , but merge into will not (although the source table is scanned
). I'm confused about this behavior. This may be related to execution plan
parsing. For tables that support row-level updates (datasourcev2 table which
implement interface `SupportsRowLevelOperations` , iceberg etc.) , the plan can
be parsed to the source table.
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