xuyang created FLINK-27247:
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Summary: when add numeric casting rules, some logics are lost
Key: FLINK-27247
URL: https://issues.apache.org/jira/browse/FLINK-27247
Project: Flink
Issue Type: Bug
Components: Table SQL / Planner
Reporter: xuyang
Add the following test cases in ScalarFunctionsTest:
{code:java}
// code placeholder
@Test
def test(): Unit ={
testSqlApi("rand(1) + rand(2)","")
} {code}
it will throw the following exception:
{code:java}
// code placeholder
org.apache.flink.table.planner.codegen.CodeGenException: Unsupported casting
from DOUBLE to DOUBLE NOT NULL. at
org.apache.flink.table.planner.codegen.calls.ScalarOperatorGens$.numericCasting(ScalarOperatorGens.scala:1734)
at
org.apache.flink.table.planner.codegen.calls.ScalarOperatorGens$.generateBinaryArithmeticOperator(ScalarOperatorGens.scala:85)
at
org.apache.flink.table.planner.codegen.ExprCodeGenerator.generateCallExpression(ExprCodeGenerator.scala:507)
at
org.apache.flink.table.planner.codegen.ExprCodeGenerator.visitCall(ExprCodeGenerator.scala:481)
at
org.apache.flink.table.planner.codegen.ExprCodeGenerator.visitCall(ExprCodeGenerator.scala:57)
at org.apache.calcite.rex.RexCall.accept(RexCall.java:174)
at
org.apache.flink.table.planner.codegen.ExprCodeGenerator.$anonfun$visitCall$1(ExprCodeGenerator.scala:478)
at
scala.collection.TraversableLike.$anonfun$map$1(TraversableLike.scala:233)
at scala.collection.mutable.ResizableArray.foreach(ResizableArray.scala:58)
at scala.collection.mutable.ResizableArray.foreach$(ResizableArray.scala:51)
at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47)
at scala.collection.TraversableLike.map(TraversableLike.scala:233)
at scala.collection.TraversableLike.map$(TraversableLike.scala:226)
at scala.collection.AbstractTraversable.map(Traversable.scala:104)
at
org.apache.flink.table.planner.codegen.ExprCodeGenerator.visitCall(ExprCodeGenerator.scala:469)
... {code}
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