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Review request for drill and Aman Sinha. Repository: drill-git Description ------- This patch implements the nested loop join operator. The main changes are in the files NestedLoopJoinBatch and NestedLoopJoinTemplate. This patch only contains the execution changes. Planning patch will be posted in a separate review request by Aman. Diffs ----- exec/java-exec/src/main/java/org/apache/drill/exec/physical/base/AbstractPhysicalVisitor.java 27b0ecb exec/java-exec/src/main/java/org/apache/drill/exec/physical/base/PhysicalVisitor.java e6a89d0 exec/java-exec/src/main/java/org/apache/drill/exec/physical/config/NestedLoopJoinPOP.java PRE-CREATION exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/join/ExpandableHyperContainerContext.java PRE-CREATION exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/join/NestedLoopJoin.java PRE-CREATION exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/join/NestedLoopJoinBatch.java PRE-CREATION exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/join/NestedLoopJoinBatchCreator.java PRE-CREATION exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/join/NestedLoopJoinTemplate.java PRE-CREATION protocol/src/main/java/org/apache/drill/exec/proto/UserBitShared.java 9a9d196 protocol/src/main/protobuf/UserBitShared.proto 5e44655 Diff: https://reviews.apache.org/r/32945/diff/ Testing ------- The tests are dependent on the planning changes, hence not uploaded as part of this patch. However https://github.com/mehant/drill/blob/notin_1/exec/java-exec/src/test/java/org/apache/drill/exec/physical/impl/join/TestNestedLoopJoin.java is a working branch that contains a bunch of tests (planning & execution) added for nested loop join. Thanks, Mehant Baid
