The processing of the rules and the selection of the tables and appropriate response and operation is configured through the combination of the default and schema/table settings according to explicit rules:
If the incoming data matches the schema and table (and optionally column) according to the rules, use the configuration information in that section.
If the schema/table is not specified or does not have explicit
configuration, use the configuration within the
__defaults section instead.
The default rule is always processed and followed if there is no match for an explicit schema, table, or column definition.