>From Mehnaz Tabassum Mahin <[email protected]>:
Attention is currently required from: Mehnaz Tabassum Mahin.
Hello Jenkins,
I'd like you to reexamine a change. Please visit
https://asterix-gerrit.ics.uci.edu/c/asterixdb/+/17759
to look at the new patch set (#3).
Change subject: [NO ISSUE][COMP] Add Distinct Cardinality Estimator from samples
......................................................................
[NO ISSUE][COMP] Add Distinct Cardinality Estimator from samples
Details:
- Add sampling queries for DISTINCT and GROUPBY operators
- Create DISTINCT operators to submit sampling queries for each dataset of
JOIN queries
- Add the Method-of-Moments (MMO) estimator for distinct values from samples
- The estimator can estimate number of distinct values in any attributes of a
dataset, i.e.,
in the attributes given in DISTINCT or GROUPBY operators.
Change-Id: I7443ac65d53aaa3d3579baf3874e660bf562e925
---
A
asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/cbo/CBODistinctOperatorUtils.java
M
asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/cbo/JoinEnum.java
A
asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/cbo/DistinctCardinalityEstimation.java
M
asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/cbo/EnumerateJoinsRule.java
4 files changed, 591 insertions(+), 0 deletions(-)
git pull ssh://asterix-gerrit.ics.uci.edu:29418/asterixdb
refs/changes/59/17759/3
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Gerrit-Project: asterixdb
Gerrit-Branch: master
Gerrit-Change-Id: I7443ac65d53aaa3d3579baf3874e660bf562e925
Gerrit-Change-Number: 17759
Gerrit-PatchSet: 3
Gerrit-Owner: Mehnaz Tabassum Mahin <[email protected]>
Gerrit-Reviewer: Jenkins <[email protected]>
Gerrit-CC: Anon. E. Moose #1000171
Gerrit-Attention: Mehnaz Tabassum Mahin <[email protected]>
Gerrit-MessageType: newpatchset
