Taewoo Kim has posted comments on this change.

Change subject: [ASTERIXDB-1972][COMP][RT][TX] index-only plan
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Patch Set 41:

(5 comments)

Thanks again.

https://asterix-gerrit.ics.uci.edu/#/c/1866/41/asterixdb/asterix-metadata/src/main/java/org/apache/asterix/metadata/entities/Dataset.java
File 
asterixdb/asterix-metadata/src/main/java/org/apache/asterix/metadata/entities/Dataset.java:

Line 595:         } else if (index.getKeyFieldNames().isEmpty()) {
> Just curious, what happens with secondary primary index plans now? How do t
The secondary primary index plan has its own rule and it is fired after 
Introduce***Rule. So, basically, if Introduce***Rule can transform the plan, 
into an index-only plan, it would be triggered there. Also, one another point 
is that the secondary primary index doesn't keep the fieldname in it. Then, I 
think index-only plan will skip to use that index.


https://asterix-gerrit.ics.uci.edu/#/c/1866/41/asterixdb/asterix-transactions/src/main/java/org/apache/asterix/transaction/management/opcallbacks/SecondaryIndexSearchOperationCallbackFactory.java
File 
asterixdb/asterix-transactions/src/main/java/org/apache/asterix/transaction/management/opcallbacks/SecondaryIndexSearchOperationCallbackFactory.java:

PS41, Line 36: SecondaryIndexSearchOperationCallbackFactory
> Can move the new code into a separate class? Keep this one as it was and in
Good idea! Done.


https://asterix-gerrit.ics.uci.edu/#/c/1866/41/hyracks-fullstack/algebricks/algebricks-core/src/main/java/org/apache/hyracks/algebricks/core/algebra/operators/logical/AbstractUnnestMapOperator.java
File 
hyracks-fullstack/algebricks/algebricks-core/src/main/java/org/apache/hyracks/algebricks/core/algebra/operators/logical/AbstractUnnestMapOperator.java:

PS41, Line 40: generateConditionalSplitVar
> We need to create a better name for this field. 'generateConditionalSplitVa
Done


Line 53:     public List<LogicalVariable> getScanVariables() {
> You need to account for the extra variable here if generateConditionalSplit
Good point! Done


https://asterix-gerrit.ics.uci.edu/#/c/1866/41/hyracks-fullstack/algebricks/algebricks-core/src/main/java/org/apache/hyracks/algebricks/core/algebra/util/OperatorPropertiesUtil.java
File 
hyracks-fullstack/algebricks/algebricks-core/src/main/java/org/apache/hyracks/algebricks/core/algebra/util/OperatorPropertiesUtil.java:

Line 281:     public static void typeOpRec(AbstractLogicalOperator lOp, 
IOptimizationContext context) throws AlgebricksException {
> Why typeOpRec() was split into two methods? Seem like this (second) one is 
Probably a legacy of my intermediate changes... Removed.


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Gerrit-MessageType: comment
Gerrit-Change-Id: Ifd5c9ab1cf2e4bedb7d8db582441919875e74d51
Gerrit-PatchSet: 41
Gerrit-Project: asterixdb
Gerrit-Branch: master
Gerrit-Owner: Taewoo Kim <[email protected]>
Gerrit-Reviewer: Anon. E. Moose #1000171
Gerrit-Reviewer: Dmitry Lychagin <[email protected]>
Gerrit-Reviewer: Ildar Absalyamov <[email protected]>
Gerrit-Reviewer: Jenkins <[email protected]>
Gerrit-Reviewer: Taewoo Kim <[email protected]>
Gerrit-Reviewer: Till Westmann <[email protected]>
Gerrit-Reviewer: Yingyi Bu <[email protected]>
Gerrit-HasComments: Yes

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