Ildar Absalyamov has posted comments on this change.

Change subject: ASTERIXDB-1109: Fixed deletion of records from open secondary 
index
......................................................................


Patch Set 3:

(4 comments)

https://asterix-gerrit.ics.uci.edu/#/c/462/3/algebricks/algebricks-core/src/main/java/org/apache/hyracks/algebricks/core/algebra/prettyprint/PlanPrettyPrinter.java
File 
algebricks/algebricks-core/src/main/java/org/apache/hyracks/algebricks/core/algebra/prettyprint/PlanPrettyPrinter.java:

Line 35:         Map<AbstractLogicalOperator, Boolean> printedOpMap = new 
HashMap<>();
> What's the purpose of introducing maps here?  It looks only map.put() is ca
I have introduced state to plan printer in order to avoid printing the save 
parts of the plan (happens when there are replicate operators). I guess Map is 
an overkill here, I'll change it to Set instead. Set will be use to determine 
whether the operator was already printed or not


https://asterix-gerrit.ics.uci.edu/#/c/462/3/algebricks/algebricks-core/src/main/java/org/apache/hyracks/algebricks/core/rewriter/base/AbstractRuleController.java
File 
algebricks/algebricks-core/src/main/java/org/apache/hyracks/algebricks/core/rewriter/base/AbstractRuleController.java:

Line 73:                     new HashMap<AbstractLogicalOperator, Boolean>());
> Why this empty map is need here?
Since printOperator is a static method, the state (the set of operators, which 
were already printed) should be passed in when the method is called (initially 
the set is empty).


https://asterix-gerrit.ics.uci.edu/#/c/462/3/algebricks/algebricks-core/src/main/java/org/apache/hyracks/algebricks/core/rewriter/base/AlgebricksOptimizationContext.java
File 
algebricks/algebricks-core/src/main/java/org/apache/hyracks/algebricks/core/rewriter/base/AlgebricksOptimizationContext.java:

Line 68:     private final Map<LogicalVariable, FunctionalDependency> 
recordToPrimaryKey = new HashMap<LogicalVariable, FunctionalDependency>();
> recordToPrimaryKey and primaryKeyRecord maps seem tricky, because a rewriti
I agree those recordToPrimaryKey&primaryKeyRecord maps are hackish solution. 
I'll see if I can avoid using them alltogether


https://asterix-gerrit.ics.uci.edu/#/c/462/3/algebricks/algebricks-rewriter/src/main/java/org/apache/hyracks/algebricks/rewriter/rules/EnforceStructuralPropertiesRule.java
File 
algebricks/algebricks-rewriter/src/main/java/org/apache/hyracks/algebricks/rewriter/rules/EnforceStructuralPropertiesRule.java:

Line 584:         PlanPrettyPrinter.printOperator(op, sb, pvisitor, 0, new 
HashMap<AbstractLogicalOperator, Boolean>());
> Why map is needed here?  The resulting states are never accessed.
See previous explanation


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Gerrit-MessageType: comment
Gerrit-Change-Id: Ib2036d2eac4b0a0c6ac2c2e7e1bac383b11106bd
Gerrit-PatchSet: 3
Gerrit-Project: hyracks
Gerrit-Branch: release-0.2.18
Gerrit-Owner: Ildar Absalyamov <[email protected]>
Gerrit-Reviewer: Ian Maxon <[email protected]>
Gerrit-Reviewer: Ildar Absalyamov <[email protected]>
Gerrit-Reviewer: Jenkins <[email protected]>
Gerrit-Reviewer: Taewoo Kim <[email protected]>
Gerrit-Reviewer: Yingyi Bu <[email protected]>
Gerrit-Reviewer: Young-Seok Kim <[email protected]>
Gerrit-HasComments: Yes

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