KurtYoung commented on a change in pull request #10105:
[Flink-14599][table-planner-blink] Support precision of TimestampType in blink
planner
URL: https://github.com/apache/flink/pull/10105#discussion_r344572768
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File path:
flink-table/flink-table-planner-blink/src/main/scala/org/apache/flink/table/planner/calcite/FlinkTypeSystem.scala
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@@ -53,6 +53,9 @@ class FlinkTypeSystem extends RelDataTypeSystemImpl {
case SqlTypeName.VARCHAR | SqlTypeName.CHAR | SqlTypeName.VARBINARY |
SqlTypeName.BINARY =>
Int.MaxValue
+ // The maximal precision of TIMESTAMP is 3, change it to 9 to support
nanoseconds precision
+ case SqlTypeName.TIMESTAMP => 9
Review comment:
What is the impact of changing it to 9?
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