OS: Windows 7 32-bit
Reporting tools: Crystal Reports 2008, Crystal Reports 2016
Crystal Reports 2008 & 2016 do not work for generic JDBC / ODBC drivers (including Drill) if there are dot characters in identifiers such as schema names.
For example, given that there exists a view called `dfs.tmp`.`A`, it is not listed under schema `dfs.tmp` in the report creation wizard of Crystal Reports 2008 / 2016.
It is because Crystal Reports chops schema name from "dfs.tmp" to "tmp" due the dot character and then tries to retrieve the table names under the non-existing schema "tmp" using the metadata API of JDBC / ODBC.
I suggest to add an optional parameter called "url_encodes_id" to the connection string where the default value is false.
When url_encodes_id=true, the JDBC / ODBC driver or the SQL parser on the server side provides URL-encoded metadata information such as schema names and table names and URL-decodes the identifiers before it actually execute the metadata API or SQL statements.
For example, the following methods of DatabaseMetaData takes URL-encoded IDs / patterns and return URL-encoded IDs:
getSchemas(String catalog, String schemaPattern)
getTables(String catalog, String schemaPattern, String tableNamePattern, String types)
And the following select statement, of which the schema name is URL-encoded, will be able to execute by JDBC / ODBC driver:
SELECT `A`.`ID` FROM `dfs%2etmp`.`A` `A`