KurtYoung commented on a change in pull request #8435:
[FLINK-12443][table-planner-blink] Replace InternalType with LogicalType in
blink
URL: https://github.com/apache/flink/pull/8435#discussion_r290565250
##########
File path:
flink-table/flink-table-planner-blink/src/main/scala/org/apache/flink/table/calcite/FlinkTypeFactory.scala
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@@ -41,87 +40,112 @@ import scala.collection.JavaConverters._
import scala.collection.mutable
/**
- * Flink specific type factory that represents the interface between Flink's
[[InternalType]]
+ * Flink specific type factory that represents the interface between Flink's
[[LogicalType]]
* and Calcite's [[RelDataType]].
*/
class FlinkTypeFactory(typeSystem: RelDataTypeSystem) extends
JavaTypeFactoryImpl(typeSystem) {
// NOTE: for future data types it might be necessary to
// override more methods of RelDataTypeFactoryImpl
- private val seenTypes = mutable.HashMap[(InternalType, Boolean),
RelDataType]()
+ private val seenTypes = mutable.HashMap[LogicalType, RelDataType]()
- def createTypeFromInternalType(
- tp: InternalType,
- isNullable: Boolean): RelDataType = {
+ def createTypeFromLogicalType(t: LogicalType, isNullable: Boolean):
RelDataType = {
Review comment:
Since `LogicalType` already contains nullability information, i suggest we
drop this interface, to force all the caller pass nullable through
`LogicalType`.
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