Skip to content

chore: fix spark ansi sum incompatibility message #4111

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
coderfender wants to merge 8 commits into
base: main
Choose a base branch
from
Open

chore: fix spark ansi sum incompatibility message #4111

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
8 commits
Select commit Hold shift + click to select a range
caccc6d
fix_incorrect_compatiblity_msg_comet_sum
coderfender Apr 27, 2026
54a83cb
fix_incorrect_compatiblity_msg_comet_sum
coderfender Apr 28, 2026
2fdb835
fix_incorrect_compatiblity_msg_comet_sum
Apr 29, 2026
27a9e8e
update_null_check
May 4, 2026
85663bf
Merge branch 'main' into fix_comet_sum_compatbility_level
coderfender May 4, 2026
a057ceb
address_review_comments
May 6, 2026
64d97f7
address_review_comments
May 6, 2026
7930428
Merge branch 'main' into fix_comet_sum_compatbility_level
coderfender May 7, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 0 additions & 2 deletions spark/src/main/scala/org/apache/comet/serde/aggregates.scala
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -205,8 +205,6 @@ object CometAverage extends CometAggregateExpressionSerde[Average] {

object CometSum extends CometAggregateExpressionSerde[Sum] {

override def getIncompatibleReasons(): Seq[String] = Seq("Falls back to Spark in ANSI mode.")

Comment thread
coderfender marked this conversation as resolved.
override def convert(
aggExpr: AggregateExpression,
sum: Sum,
Expand Down
2 changes: 1 addition & 1 deletion spark/src/main/scala/org/apache/comet/serde/strings.scala
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,7 @@ import org.apache.comet.serde.QueryPlanSerde.{createBinaryExpr, exprToProtoInter

object CometStringRepeat extends CometExpressionSerde[StringRepeat] {

override def getCompatibleNotes(): Seq[String] = Seq(
override def getIncompatibleReasons(): Seq[String] = Seq(
"A negative argument for the number of times to repeat throws an exception" +
" instead of returning an empty string as Spark does")

Expand Down
26 changes: 19 additions & 7 deletions spark/src/main/scala/org/apache/comet/serde/unixtime.scala
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -29,12 +29,27 @@ 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 = {
expr.format match {
case Literal(fmt, _) =>
val formatStr = fmt.toString
Comment thread
coderfender marked this conversation as resolved.
val defaultPattern = TimestampFormatter.defaultPattern
if (formatStr == defaultPattern) {
Incompatible(None)
} else {
Comment thread
coderfender marked this conversation as resolved.
Unsupported(Some(s"Datetime pattern format: $formatStr is unsupported"))
}
case _ =>
Unsupported(Some("Non-literal datetime pattern format is unsupported"))
}
Comment thread
coderfender marked this conversation as resolved.
}

override def convert(
expr: FromUnixTime,
Expand All @@ -48,10 +63,7 @@ object CometFromUnixTime extends CometExpressionSerde[FromUnixTime] {
val formatExpr = exprToProtoInternal(Literal("%Y-%m-%d %H:%M:%S"), inputs, binding)
val timeZone = exprToProtoInternal(Literal(expr.timeZoneId.orNull), inputs, binding)

if (expr.format != Literal(TimestampFormatter.defaultPattern)) {
withInfo(expr, "Datetime pattern format is unsupported")
None
} else if (secExpr.isDefined && formatExpr.isDefined) {
if (secExpr.isDefined && formatExpr.isDefined) {
val timestampExpr =
scalarFunctionExprToProto("from_unixtime", Seq(secExpr, timeZone): _*)
val optExpr = scalarFunctionExprToProto("to_char", Seq(timestampExpr, formatExpr): _*)
Expand Down
4 changes: 2 additions & 2 deletions spark/src/test/resources/sql-tests/expressions/datetime/from_unix_time.sql
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -24,12 +24,12 @@ INSERT INTO test_from_unix_time VALUES (0), (1718451045), (-1), (NULL), (2147483
query expect_fallback(not fully compatible with Spark)
SELECT from_unixtime(t) FROM test_from_unix_time

query expect_fallback(not fully compatible with Spark)
query expect_fallback(Datetime pattern format: yyyy-MM-dd is unsupported)
SELECT from_unixtime(t, 'yyyy-MM-dd') FROM test_from_unix_time
Comment thread
coderfender marked this conversation as resolved.

-- literal arguments
query expect_fallback(not fully compatible with Spark)
SELECT from_unixtime(0)

query expect_fallback(not fully compatible with Spark)
query expect_fallback(Datetime pattern format: yyyy-MM-dd is unsupported)
SELECT from_unixtime(1718451045, 'yyyy-MM-dd')
Loading