This is the implementation of the OceanBase data handler for MindsDB. OceanBase is a distributed relational database. It is the only distributed database in the world that has broken both TPC-C and TPC-H records. OceanBase adopts an independently developed integrated architecture, which encompasses both the scalability of a distributed architecture and the performance advantage of a centralized architecture. It supports hybrid transaction/analytical processing (HTAP) with one engine. Its features include strong data consistency, high availability, high performance, online scalability, high compatibility with SQL and mainstream relational databases, transparency to applications, and a high cost/performance ratio.

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Implementation

This handler is implemented by extending the MySQL data handler. The required arguments to establish a connection are as follows:
  • user is the database user.
  • password is the database password.
  • host is the host name, IP address, or URL.
  • port is the port used to make TCP/IP connection.
  • database is the database name.
If you installed MindsDB locally via pip, you need to install all handler dependencies manually. To do so, go to the handler’s folder (mindsdb/integrations/handlers/oceanbase_handler) and run this command: pip install -r requirements.txt.

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Usage

In order to make use of this handler and connect to the OceanBase server in MindsDB, the following syntax can be used: 
CREATE DATABASE oceanbase_datasource
WITH
  ENGINE = 'oceanbase',
  PARAMETERS = {
    "host": "127.0.0.1",
    "user": "oceanbase_user",
    "password": "password",
    "port": 2881,
    "database": "oceanbase_db"
  };
Now, you can use this established connection to query your database as follows: 
SELECT *
FROM oceanbase_datasource.demo_table
LIMIT 10;