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The following page has been changed by NoblePaul: http://wiki.apache.org/solr/DataImportHandler ------------------------------------------------------------------------------ The use case is as follows: There are 3 datasources two RDBMS (jdbc1,jdbc2) and one xml/http (B) + * `jdbc1` and `jdbc2` are instances of `JdbcDataSource` which are configured in the solrconfig.xml. + * `http` is an instance of `HttpDataSource` - * The root entity starts with a table called 'A' in the 'jdbc1' . The entity is conveniently named as the table itself + * The root entity starts with a table called 'A' and uses 'jdbc1' as the datasource . The entity is conveniently named as the table itself + * Entity 'A' has 2 sub-entities 'B' and 'C' . 'B' uses the datasource instance 'http' and 'C' uses the datasource instance 'jdbc2' + * On doing a `command=full-import` The root-entity (A) is executed first * Each row that emitted by the 'query' in entity 'A' is fed into its sub entities B, C * The queries in B and C use a column in 'A' to construct their queries using placeholders like `${A.a}` * B has a url (B is an xml/http datasource)
