coderfender commented on code in PR #4111:
URL: https://github.com/apache/datafusion-comet/pull/4111#discussion_r3152055367
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spark/src/main/scala/org/apache/comet/serde/unixtime.scala:
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@@ -29,12 +29,20 @@ import
org.apache.comet.serde.QueryPlanSerde.{exprToProtoInternal, optExprWithIn
// https://github.com/apache/datafusion/issues/16594
object CometFromUnixTime extends CometExpressionSerde[FromUnixTime] {
+ override def getUnsupportedReasons(): Seq[String] = Seq(
+ "Only supports the default datetime format pattern `yyyy-MM-dd HH:mm:ss`")
+
override def getIncompatibleReasons(): Seq[String] = Seq(
- "Only supports the default datetime format pattern `yyyy-MM-dd HH:mm:ss`."
+
- " DataFusion's valid timestamp range differs from Spark" +
+ "DataFusion's valid timestamp range differs from Spark" +
" (https://github.com/apache/datafusion/issues/16594)")
- override def getSupportLevel(expr: FromUnixTime): SupportLevel =
Incompatible(None)
+ override def getSupportLevel(expr: FromUnixTime): SupportLevel = {
+ if (expr.format == Literal(TimestampFormatter.defaultPattern)) {
+ Incompatible(None)
+ } else {
+ Unsupported(None)
+ }
Review Comment:
I tried to leverage the right reason to fallback based on the pattern here
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