[jira] [Created] (CALCITE-2562) Suspicious code in org.apache.calcite.sql2rel.StandardConvertletTable#convertDatetimeMinus

["Vladimir Sitnikov (JIRA)" <ji...@apache.org>]

Vladimir Sitnikov created CALCITE-2562:
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             Summary: Suspicious code in org.apache.calcite.sql2rel.StandardConvertletTable#convertDatetimeMinus
                 Key: CALCITE-2562
                 URL: https://issues.apache.org/jira/browse/CALCITE-2562
             Project: Calcite
          Issue Type: Bug
          Components: core
    Affects Versions: 1.17.0
            Reporter: Vladimir Sitnikov
            Assignee: Julian Hyde


https://github.com/apache/calcite/blob/ca858dd725dea6bf9b4a9059cf1c3ba98bd82f26/core/src/main/java/org/apache/calcite/sql2rel/StandardConvertletTable.java#L626-L640

{code:java}    final RexNode[] casts = new RexNode[2];
    casts[0] =
        rexBuilder.makeCast(
            cx.getTypeFactory().createTypeWithNullability(
                int8Type,
                exprs.get(0).getType().isNullable()),
            exprs.get(0));
    casts[1] =
        rexBuilder.makeCast(
            cx.getTypeFactory().createTypeWithNullability(
                int8Type,
                exprs.get(1).getType().isNullable()),
            exprs.get(1));
    final RelDataType resType =
        cx.getValidator().getValidatedNodeType(call);
    return rexBuilder.makeCall(resType, op, exprs.subList(0, 2));
{code}

{{casts}} array is never read.
Are casts required there?
Should {{Arrays.asList(casts)}} be used instead of {{exprs.subList(0, 2)}}?



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