Steven Jacobs has posted comments on this change.

Change subject: ASTERIXDB-1608, ASTERIXDB-1617 Match user query for nonpure 
function calls
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Patch Set 12:

(3 comments)

https://asterix-gerrit.ics.uci.edu/#/c/1057/12/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/PushFieldAccessRule.java
File 
asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/PushFieldAccessRule.java:

Line 190:         if (annotation != null && !((Boolean) annotation)) {
> OK, can you give me an example that moving a non-pure call is fine?
In this case, it is actually deciding whether the field access can be pushed 
through op2. This is okay even when op2 is nonPure.


https://asterix-gerrit.ics.uci.edu/#/c/1057/12/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/am/AccessMethodUtils.java
File 
asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/am/AccessMethodUtils.java:

Line 668:     //Get Variables used by afterSelectRefs that were created before 
the datasource
> But retainInput changes the semantics?
I don't quite understand this question. This method makes it so that, in the 
select case, if variables are used after the select, they are retained after 
the select.


https://asterix-gerrit.ics.uci.edu/#/c/1057/12/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/am/IOptimizableFuncExpr.java
File 
asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/am/IOptimizableFuncExpr.java:

Line 80:     ILogicalExpression[] getConstantExpressions();
> Does the constant mean a real "constant" in the query, or it means a relati
Constants will only be "real constants" after this change. Previous changes 
allowed for other cases, but we will not allow for these anymore.


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Gerrit-MessageType: comment
Gerrit-Change-Id: I2dec322b30835625430c06acd7626d902bada137
Gerrit-PatchSet: 12
Gerrit-Project: asterixdb
Gerrit-Branch: master
Gerrit-Owner: Steven Jacobs <sjaco...@ucr.edu>
Gerrit-Reviewer: Jenkins <jenk...@fulliautomatix.ics.uci.edu>
Gerrit-Reviewer: Michael Blow <mb...@apache.org>
Gerrit-Reviewer: Preston Carman <prest...@apache.org>
Gerrit-Reviewer: Steven Jacobs <sjaco...@ucr.edu>
Gerrit-Reviewer: Taewoo Kim <wangs...@yahoo.com>
Gerrit-Reviewer: Till Westmann <ti...@apache.org>
Gerrit-Reviewer: Yingyi Bu <buyin...@gmail.com>
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