Github user amansinha100 commented on a diff in the pull request:
https://github.com/apache/drill/pull/598#discussion_r81173247
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillConstExecutor.java
---
@@ -143,116 +156,176 @@ public void reduce(RexBuilder rexBuilder,
List<RexNode> constExps, List<RexNode>
continue;
}
- switch(materializedExpr.getMajorType().getMinorType()) {
- case INT:
- reducedValues.add(rexBuilder.makeLiteral(
- new BigDecimal(((IntHolder)output).value),
-
TypeInferenceUtils.createCalciteTypeWithNullability(typeFactory,
SqlTypeName.INTEGER, newCall.getType().isNullable()),
- false));
- break;
- case BIGINT:
- reducedValues.add(rexBuilder.makeLiteral(
- new BigDecimal(((BigIntHolder)output).value),
-
TypeInferenceUtils.createCalciteTypeWithNullability(typeFactory,
SqlTypeName.BIGINT, newCall.getType().isNullable()),
- false));
- break;
- case FLOAT4:
- reducedValues.add(rexBuilder.makeLiteral(
- new BigDecimal(((Float4Holder)output).value),
-
TypeInferenceUtils.createCalciteTypeWithNullability(typeFactory,
SqlTypeName.FLOAT, newCall.getType().isNullable()),
- false));
- break;
- case FLOAT8:
- reducedValues.add(rexBuilder.makeLiteral(
- new BigDecimal(((Float8Holder)output).value),
-
TypeInferenceUtils.createCalciteTypeWithNullability(typeFactory,
SqlTypeName.DOUBLE, newCall.getType().isNullable()),
- false));
- break;
- case VARCHAR:
- reducedValues.add(rexBuilder.makeCharLiteral(
- new
NlsString(StringFunctionHelpers.getStringFromVarCharHolder((VarCharHolder)output),
null, null)));
- break;
- case BIT:
- reducedValues.add(rexBuilder.makeLiteral(
- ((BitHolder)output).value == 1 ? true : false,
-
TypeInferenceUtils.createCalciteTypeWithNullability(typeFactory,
SqlTypeName.BOOLEAN, newCall.getType().isNullable()),
- false));
- break;
- case DATE:
- reducedValues.add(rexBuilder.makeLiteral(
- new DateTime(((DateHolder) output).value,
DateTimeZone.UTC).toCalendar(null),
-
TypeInferenceUtils.createCalciteTypeWithNullability(typeFactory,
SqlTypeName.DATE, newCall.getType().isNullable()),
- false));
- break;
- case DECIMAL9:
- reducedValues.add(rexBuilder.makeLiteral(
- new BigDecimal(BigInteger.valueOf(((Decimal9Holder)
output).value), ((Decimal9Holder)output).scale),
+ Function<ValueHolder, RexNode> literator = new Function<ValueHolder,
RexNode>() {
--- End diff --
Sounds good.
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