You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@hive.apache.org by "Gopal V (JIRA)" <ji...@apache.org> on 2016/01/15 03:31:39 UTC
[jira] [Assigned] (HIVE-12826) Vectorization: VectorUDAF* suspect
isNull checks
[ https://issues.apache.org/jira/browse/HIVE-12826?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Gopal V reassigned HIVE-12826:
------------------------------
Assignee: Gopal V (was: Matt McCline)
> Vectorization: VectorUDAF* suspect isNull checks
> ------------------------------------------------
>
> Key: HIVE-12826
> URL: https://issues.apache.org/jira/browse/HIVE-12826
> Project: Hive
> Issue Type: Bug
> Components: Vectorization
> Affects Versions: 1.3.0, 2.0.0, 2.1.0
> Reporter: Gopal V
> Assignee: Gopal V
>
> for isRepeating=true, checking isNull[selected[i]] might return incorrect results (without a heavy array fill of isNull).
> VectorUDAFSum/Min/Max/Avg and SumDecimal impls need to be reviewed for this pattern.
> {code}
> private void iterateHasNullsRepeatingSelectionWithAggregationSelection(
> VectorAggregationBufferRow[] aggregationBufferSets,
> int aggregateIndex,
> <ValueType> value,
> int batchSize,
> int[] selection,
> boolean[] isNull) {
>
> for (int i=0; i < batchSize; ++i) {
> if (!isNull[selection[i]]) {
> Aggregation myagg = getCurrentAggregationBuffer(
> aggregationBufferSets,
> aggregateIndex,
> i);
> myagg.sumValue(value);
> }
> }
> }
> {code}
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)