| commit | d74d74196ccdcf9c26219b9440f7ea0c32b0472a | [log] [tgz] |
|---|---|---|
| author | ggalvizo <ggalvizo@uci.edu> | Thu Sep 16 07:12:02 2021 -0700 |
| committer | Glenn Galvizo <ggalvizo@uci.edu> | Thu Sep 16 22:14:20 2021 +0000 |
| tree | a835192711eaad846263b89f556787429d18480e | |
| parent | 16e138d15dbe70c644980cc890db7c724d127b40 [diff] |
[ASTERIXDB-2960][IDX] LOJ array-index INLJ probe PK fix - user model changes: no - storage format changes: no - interface changes: no Type errors were being thrown for LOJ on subqueries involving UNNESTed values for array index INLJ. This was due to a bug where we would try to perform a DISTINCT on probe PK vars that weren't present. If we cannot infer any probe entries from the context, then insert a UUID on top of the probe to allow the DISTINCT to work as intended. Change-Id: I1eccce55b8d4d2fdb47f678d89fcf957f0ab2ebe Reviewed-on: https://asterix-gerrit.ics.uci.edu/c/asterixdb/+/13183 Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu> Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu> Reviewed-by: Dmitry Lychagin <dmitry.lychagin@couchbase.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
An expressive and declarative query language (SQL++ that supports 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:19006
Read more documentation to learn the data model, query language, and how to create a cluster instance.
To generate the documentation, run asterix-doc with the generate.rr profile in maven, e.g mvn -Pgenerate.rr ... Be sure to run mvn package beforehand or run mvn site in asterix-lang-sqlpp to generate some resources that are used in the documentation that are generated directly from the grammar.