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_r344431350
##########
File path:
flink-table/flink-table-planner-blink/src/main/scala/org/apache/flink/table/planner/codegen/GenerateUtils.scala
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@@ -370,8 +373,56 @@ object GenerateUtils {
generateNonNullLiteral(literalType, literalValue.toString,
literalValue)
case TIMESTAMP_WITHOUT_TIME_ZONE =>
- val millis = literalValue.asInstanceOf[Long]
- generateNonNullLiteral(literalType, millis + "L", millis)
+ def getNanoOfMillisSinceEpoch(timestampString: TimestampString): Int =
{
+ val v = timestampString.toString()
+ val length = v.length
+ val nanoOfSeconds = length match {
+ case 19 | 20 => 0
+ case _ =>
+ JInteger.valueOf(v.substring(20)) * pow(10, 9 - (length -
20)).intValue()
+ }
+ nanoOfSeconds % 1000000
+ }
+
+ // TODO: we copied the logical of TimestampString::getMillisSinceEpoch
since the copied
+ // DateTimeUtils.ymdToJulian is wrong.
Review comment:
From the comment of `DateTimeUtils`, I think we already aware of
CALCITE-1884, do you mean we didn't fix it in copied `DateTimeUtils`?
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