Definition

Data Source is used to access metadata and read the changed data from external systems.
A Data Source can read data from multiple tables simultaneously.

Parameters

To describe a data source, the follows are required:

parameter	meaning	optional/required
type	The type of the source, such as mysql.	required
name	The name of the source, which is user-defined (a default value provided).	optional
configurations of Data Source	Configurations to build the Data Source e.g. connection configurations and source table properties.	optional

Example

We could use yaml files to define a mysql source:

source:
    type: mysql
    name: mysql-source   #optional，description information
    host: localhost
    port: 3306
    username: admin
    password: pass
    tables: adb.*, bdb.user_table_[0-9]+, [app|web]_order_\.*