wuchong commented on a change in pull request #10316:
[FLINK-14624][table-blink] Support computed column as rowtime attribute
URL: https://github.com/apache/flink/pull/10316#discussion_r353731812
##########
File path:
flink-table/flink-table-planner-blink/src/main/scala/org/apache/flink/table/planner/plan/schema/CatalogSourceTable.scala
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@@ -76,21 +74,25 @@ class CatalogSourceTable[T](
tableSource,
schemaTable.isStreamingMode,
catalogTable)
- if (columnExprs.isEmpty) {
- LogicalTableScan.create(cluster, tableSourceTable)
- } else {
- // Get row type of physical fields.
- val physicalFields = getRowType
- .getFieldList
- .filter(f => !columnExprs.contains(f.getName))
- .map(f => f.getIndex)
- .toArray
- // Copy this table with physical scan row type.
- val newRelTable = tableSourceTable.copy(tableSource, physicalFields)
- val scan = LogicalTableScan.create(cluster, newRelTable)
- val toRelContext = context.asInstanceOf[FlinkToRelContext]
- val relBuilder = toRelContext.createRelBuilder()
- val fieldNames = rowType.getFieldNames.asScala
+
+ // 1. push table scan
+
+ // Get row type of physical fields.
+ val physicalFields = getRowType
+ .getFieldList
+ .filter(f => !columnExprs.contains(f.getName))
+ .map(f => f.getIndex)
+ .toArray
+ // Copy this table with physical scan row type.
+ val newRelTable = tableSourceTable.copy(tableSource, physicalFields)
Review comment:
I would like to avoid duplicating the logic of projecting RelDataType which
is error-prone.
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