datahub/metadata-ingestion/docs/sources/redash/redash.md

Note! The integration can use an SQL parser to try to parse the tables the chart depends on. This parsing is disabled by default, but can be enabled by setting parse_table_names_from_sql: true. The default parser is based on the sqllineage package. As this package doesn't officially support all the SQL dialects that Redash supports, the result might not be correct. You can, however, implement a custom parser and take it into use by setting the sql_parser configuration value. A custom SQL parser must inherit from datahub.utilities.sql_parser.SQLParser and must be made available to Datahub by ,for example, installing it. The configuration then needs to be set to module_name.ClassName of the parser.