Ryu Kobayashi
Ryu Kobayashi
### What changes were proposed in this pull request? Vectorized LIKE udf is taking proportionately higher time depending on the size of input string in UDF. And, I found a...
### What changes were proposed in this pull request? If a `SUBSTR` UDF has a 4-byte characters in its parameter, the behavior is different between vectorized and non-vectorized. The vectorized...
### What changes were proposed in this pull request? Vectorized LIKE udf is taking proportionately higher time depending on the size of input string in UDF. And, I found a...
### What changes were proposed in this pull request? Complex queries with many UNIONs will fail with a SemanticException. So, this PR will be fix that issue. ### Why are...
### What changes were proposed in this pull request? Fix performance regression in map-hash aggregation. The following log will be output in large volume, causing performance degradation. https://github.com/apache/hive/blob/rel/release-4.0.0/ql/src/java/org/apache/hadoop/hive/ql/exec/GroupByOperator.java#L967 https://github.com/apache/hive/blob/rel/release-4.0.0/ql/src/java/org/apache/hadoop/hive/ql/exec/GroupByOperator.java#L978 And,...
### What changes were proposed in this pull request? If a `SUBSTR` UDF has a 4-byte characters in its parameter, the behavior is different between vectorized and non-vectorized. The vectorized...
### What changes were proposed in this pull request? Migrate from the AWS SDK for Java v1 to v2 ### Why are the changes needed? AWS SDK for Java v1.x...
### Description of PR Fix queue starvation in FairSharePolicy when queues have pending applications Problem FairSharePolicy causes queue starvation when a queue has pending applications waiting for AM allocation but...