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Uses of Transform in org.apache.hadoop.hive.ql.optimizer |
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Classes in org.apache.hadoop.hive.ql.optimizer that implement Transform | |
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BucketingSortingReduceSinkOptimizer
This transformation does optimization for enforcing bucketing and sorting. |
class |
BucketMapJoinOptimizer
this transformation does bucket map join optimization. |
class |
ColumnPruner
Implementation of one of the rule-based optimization steps. |
class |
GlobalLimitOptimizer
This optimizer is used to reduce the input size for the query for queries which are specifying a limit. |
class |
GroupByOptimizer
This transformation does group by optimization. |
class |
JoinReorder
Implementation of rule-based join table reordering optimization. |
class |
LimitPushdownOptimizer
Make RS calculate top-K selection for limit clause. |
class |
MapJoinProcessor
Implementation of one of the rule-based map join optimization. |
class |
NonBlockingOpDeDupProc
merges SEL-SEL or FIL-FIL into single operator |
class |
SamplePruner
The transformation step that does sample pruning. |
class |
SimpleFetchAggregation
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class |
SimpleFetchOptimizer
Tries to convert simple fetch query to single fetch task, which fetches rows directly from location of table/partition. |
class |
SkewJoinOptimizer
SkewJoinOptimizer. |
class |
SortedMergeBucketMapJoinOptimizer
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Uses of Transform in org.apache.hadoop.hive.ql.optimizer.correlation |
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Classes in org.apache.hadoop.hive.ql.optimizer.correlation that implement Transform | |
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class |
CorrelationOptimizer
Implementation of Correlation Optimizer. |
class |
ReduceSinkDeDuplication
If two reducer sink operators share the same partition/sort columns and order, they can be merged. |
Uses of Transform in org.apache.hadoop.hive.ql.optimizer.index |
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Classes in org.apache.hadoop.hive.ql.optimizer.index that implement Transform | |
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class |
RewriteGBUsingIndex
RewriteGBUsingIndex is implemented as one of the Rule-based Optimizations. |
Uses of Transform in org.apache.hadoop.hive.ql.optimizer.lineage |
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Classes in org.apache.hadoop.hive.ql.optimizer.lineage that implement Transform | |
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class |
Generator
This class generates the lineage information for the columns and tables from the plan before it goes through other optimization phases. |
Uses of Transform in org.apache.hadoop.hive.ql.optimizer.listbucketingpruner |
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Classes in org.apache.hadoop.hive.ql.optimizer.listbucketingpruner that implement Transform | |
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class |
ListBucketingPruner
The transformation step that does list bucketing pruning. |
Uses of Transform in org.apache.hadoop.hive.ql.optimizer.pcr |
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Classes in org.apache.hadoop.hive.ql.optimizer.pcr that implement Transform | |
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class |
PartitionConditionRemover
The transformation step that does partition condition remover. |
Uses of Transform in org.apache.hadoop.hive.ql.optimizer.ppr |
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Classes in org.apache.hadoop.hive.ql.optimizer.ppr that implement Transform | |
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class |
PartitionPruner
The transformation step that does partition pruning. |
Uses of Transform in org.apache.hadoop.hive.ql.optimizer.unionproc |
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Classes in org.apache.hadoop.hive.ql.optimizer.unionproc that implement Transform | |
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class |
UnionProcessor
Implementation of the union processor. |
Uses of Transform in org.apache.hadoop.hive.ql.ppd |
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Classes in org.apache.hadoop.hive.ql.ppd that implement Transform | |
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class |
PredicatePushDown
Implements predicate pushdown. |
class |
PredicateTransitivePropagate
propagates filters to other aliases based on join condition |
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