[jira] [Created] (IGNITE-16906) SQL Calcite. ClassCastException when deserialising TIMESTAMP literal

[Konstantin Orlov (Jira)]

Konstantin Orlov created IGNITE-16906:
-----------------------------------------

             Summary: SQL Calcite. ClassCastException when deserialising 
TIMESTAMP literal
                 Key: IGNITE-16906
                 URL: https://issues.apache.org/jira/browse/IGNITE-16906
             Project: Ignite
          Issue Type: Bug
          Components: sql
    Affects Versions: 2.13
            Reporter: Konstantin Orlov


The problem appears to be caused by an inconsistency of RelReader and 
RexBuilder: RelReader diserializes every integer value as a value of type 
Integer, but the RexBuilder assumes that for TIMESTAMP literal a value of type 
Long will be passed, and make the explicit cast:
{code:java}
// RexBuilder#clean(Object, RelDataType)
case TIMESTAMP:
  if (o instanceof TimestampString) {
    return o;
  } else if (o instanceof Calendar) {
    if (!((Calendar) o).getTimeZone().equals(DateTimeUtils.UTC_ZONE)) {
      throw new AssertionError();
    }
    return TimestampString.fromCalendarFields((Calendar) o);
  } else {
    return TimestampString.fromMillisSinceEpoch((Long) o);
  } {code}
 

Here is a stack trace:
{noformat}
java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.Long
        at org.apache.calcite.rex.RexBuilder.clean(RexBuilder.java:1780)
        at org.apache.calcite.rex.RexBuilder.makeLiteral(RexBuilder.java:1558)
        at org.apache.calcite.rex.RexBuilder.makeLiteral(RexBuilder.java:1520)
        at 
org.apache.ignite.internal.processors.query.calcite.externalize.RelJson.toRex(RelJson.java:529)
        at 
org.apache.ignite.internal.processors.query.calcite.externalize.RelJsonReader$RelInputImpl.getExpressionList(RelJsonReader.java:248)
        at 
org.apache.ignite.internal.processors.query.calcite.trait.TraitUtils$1.getExpressionList(TraitUtils.java:323)
        at 
org.apache.ignite.internal.processors.query.calcite.rel.ProjectableFilterableTableScan.<init>(ProjectableFilterableTableScan.java:87)
        at 
org.apache.ignite.internal.processors.query.calcite.rel.IgniteTableScan.<init>(IgniteTableScan.java:46)
{noformat}



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