Data dictionary IBM® Netezza® related data dictionary topics. Data type conversion table: Informix to NetezzaBOOLEAN data typeCHAR and VARCHAR data typesNumeric data typesDATE and DATETIME data typesINTERVAL data typeSERIAL and BIGSERIAL data typesROWID columnsIndexesTEXT and BYTE (LOB) typesTable constraintsName resolution of SQL objects