VoltCompiler compiler = new VoltCompiler();
hsql = HSQLInterface.loadHsqldb();
//hsql.runDDLFile(schemaPath);
DDLCompiler ddl_compiler = new DDLCompiler(compiler, hsql);
ddl_compiler.loadSchema(schemaPath);
ddl_compiler.compileToCatalog(catalog, db);
}
/**
* Cleans up HSQL. Mandatory - call this when done!