| commit | b0919afbf42e7a7cf942d1b0f6d6d29b178b34fd | [log] [tgz] |
|---|---|---|
| author | Hussain Towaileb <Hussain.Towaileb@Couchbase.com> | Mon Dec 09 13:55:39 2019 +0300 |
| committer | Hussain Towaileb <hussainht@gmail.com> | Tue Dec 10 18:13:41 2019 +0000 |
| tree | b8e31f808ee6e878dc4b1f20b9f45d70ebdb9677 | |
| parent | db0e80ee91adab00bdcb2a34aa649e1ebfb41a9d [diff] |
[ASTERIXDB-2667][FUN] Share code base between string functions - user model changes: no - storage format changes: no - interface changes: no Details: - String functions concat, string_concat and string_join now share the same code instead of each having a different evaluator class. - Added test cases for string_join function. - Added support to deep missing/null checking in list items. Now it's possible to give a deeper (list items) missing value a higher priority over null arguments outside a list between parameters. Example: somefun([1, missing], null); It's possible to deeply check the list items first, and hence return a missing, or only do first level check and output would be null. Change-Id: I41b644c6841b222d1c6c529b2f9189f42178e28c Reviewed-on: https://asterix-gerrit.ics.uci.edu/c/asterixdb/+/4023 Contrib: Jenkins <jenkins@fulliautomatix.ics.uci.edu> Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu> Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu> Reviewed-by: Hussain Towaileb <hussainht@gmail.com> Reviewed-by: Ali Alsuliman <ali.al.solaiman@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/apache-asterixdb-*-SNAPSHOT $./opt/local/bin/start-sample-cluster.sh
Good to go and run queries in your browser at:
http://localhost:19001
Read more documentation to learn the data model, query language, and how to create a cluster instance.