Supported since 5.0.0.
Through the MariaDB (opens new window) connector, Ontop is able to construct VKGs on MariaDB databases.
# Limitations & Exceptions
- String literals have to be encased in single quotes (
'). Double quote string literals (
") are not supported.
# Database Connection
The following shows the content of a sample
.properties file that can be used to connect Ontop to MariaDB:
jdbc.url = jdbc:mariadb://localhost:3306/defaultdatabase jdbc.user = user jdbc.password = password jdbc.driver = org.mariadb.jdbc.Driver
# Nested Type Support
Ontop implements explicit compatibility with the MariaDB type
JSON which can be used with the flatten lens. However, it cannot infer the type of the flattened result column.
In case the flattened column is still a nested structure after the flatten operation is performed (e.g. for arrays of objects), MariaDB's JSON functions (opens new window) can be used to further work with them.
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