t3rmin4t0r commented on a change in pull request #1067:
URL: https://github.com/apache/hive/pull/1067#discussion_r436050381
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File path: ql/src/java/org/apache/hadoop/hive/ql/exec/GroupByOperator.java
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@@ -990,24 +955,17 @@ private void flushHashTable(boolean complete) throws
HiveException {
// changed in the future
if (complete) {
- Iterator<Map.Entry<KeyWrapper, AggregationBuffer[]>> iter =
hashAggregations
- .entrySet().iterator();
- while (iter.hasNext()) {
- Map.Entry<KeyWrapper, AggregationBuffer[]> m = iter.next();
- forward(m.getKey().getKeyArray(), m.getValue());
+ for (Map.Entry<KeyWrapper, AggregationBuffer[]> entry :
hashAggregations.entrySet()) {
+ forward(entry.getKey().getKeyArray(), entry.getValue());
}
- hashAggregations.clear();
hashAggregations = null;
- if (LOG.isInfoEnabled()) {
- LOG.info("Hash Table completed flushed");
- }
+ LOG.info("Hash Table completed flushed");
return;
}
int oldSize = hashAggregations.size();
- if (LOG.isInfoEnabled()) {
- LOG.info("Hash Tbl flush: #hash table = " + oldSize);
- }
+ LOG.info("Hash Tbl flush: #hash table = " + oldSize);
Review comment:
We were skipping string garbage for this, I think we can switch to the
{} format
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