commit | c4eb65649b251f6a3403fb7301a40d0dab47418c | [log] [tgz] |
---|---|---|
author | Taewoo Kim <wangsaeu@yahoo.com> | Fri Mar 17 19:16:11 2017 -0700 |
committer | Taewoo Kim <wangsaeu@gmail.com> | Sun Mar 19 15:55:01 2017 -0700 |
tree | b03406a73a426a5c298178ab8a6c10cdf3d880a0 | |
parent | d8b5972ec62bfd43e6f48775469074d0968f11a3 [diff] |
Index-only plan step 3: Top-down Select and Join transformation rule - Converted IntroduceSelectAccessMethodRule and IntroduceJoinAccessMethodRule from bottom-up approach to top-down approach from the root operator. - Index-only plan needs to verify the variables that are live in the select or join condition are the only variables to be used afterwards unless a variable is generated after the select or join operator. - In order to keep this information, top-down approach needs to be introduced. Change-Id: I60a2a61eb46851d4c16c8f17447e3ac9b0aca778 Reviewed-on: https://asterix-gerrit.ics.uci.edu/1551 Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu> BAD: Jenkins <jenkins@fulliautomatix.ics.uci.edu> Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu> Reviewed-by: Yingyi Bu <buyingyi@gmail.com>
AsterixDB is a BDMS (Big Data Management System) with a rich feature set that sets it apart from other Big Data platforms. Its feature set makes it well-suited to modern needs such as web data warehousing and social data storage and analysis. AsterixDB has:
Data model
A semistructured NoSQL style data model (ADM) resulting from extending JSON with object database ideas
Query languages
Two expressive and declarative query languages (SQL++ and AQL) that support a broad range of queries and analysis over semistructured data
Scalability
A parallel runtime query execution engine, Apache Hyracks, that has been scale-tested on up to 1000+ cores and 500+ disks
Native storage
Partitioned LSM-based data storage and indexing to support efficient ingestion and management of semistructured data
External storage
Support for query access to externally stored data (e.g., data in HDFS) as well as to data stored natively by AsterixDB
Data types
A rich set of primitive data types, including spatial and temporal data in addition to integer, floating point, and textual data
Indexing
Secondary indexing options that include B+ trees, R trees, and inverted keyword (exact and fuzzy) index types
Transactions
Basic transactional (concurrency and recovery) capabilities akin to those of a NoSQL store
Learn more about AsterixDB at its website.
To build AsterixDB from source, you should have a platform with the following:
Instructions for building the master:
Checkout AsterixDB master:
$git clone https://github.com/apache/asterixdb.git
Build AsterixDB master:
$cd asterixdb $mvn clean package -DskipTests
Here are steps to get AsterixDB running on your local machine:
Start a single-machine AsterixDB instance:
$cd asterixdb/asterix-server/target/asterix-server-*-binary-assembly/ $./opt/local/bin/start-sample-cluster.sh
Good to go and run queries in your browser at:
http://localhost:19001
Read more documentations to learn the data model, query language, and how to create a cluster instance.