| Parameter | Reference | Type | Length | Default | Optional | Text |
|---|---|---|---|---|---|---|
| I_ATTR_NAME | TREX_RFC-ATTRIBUTE | C | 64 | Attribute name | ||
| I_GET_STATISTICS | TREX_RFC-BOOLEAN | N | 1 | 0 | 1: statistics are calculated | |
| I_INDEX_ID | TREX_RFC-INDEX_ID | C | 64 | Index Id | ||
| I_LANGUAGE | TREX_RFC-LANGUAGE | C | 2 | Language | ||
| I_MAX_RESULTS | TREX_RFC-NUMC | I | 4 | 10000 | maximum number of tuples for calculation | |
| I_NUMBER_OF_PAIRS | TREX_RFC-NUMC | I | 4 | 0 | maximum number of pairs be returned | |
| I_RFC_DESTINATION | TREX_RFC-RFC_DESTINATION | C | 32 | RFC destination to TREX engine |
| Parameter | Reference | Type | Length | Text |
|---|---|---|---|---|
| E_NUMBER_OF_PAIRS | TREX_RFC-NUMC | I | 4 | Number of actually returned value pairs |
| E_PAIRS | TREXT_ATTR_VALUE_COUNTS | h | 138 | Pairs (values and their occurence) |
| E_RETURN_CODE | TREX_RFC-RETURN_CODE | I | 4 | Return code |
| E_RETURN_TEXT | TREX_RFC-RETURN_TEXT | C | 200 | Return text |
| E_STATISTICS | TREXS_ATTR_STATISTICS | u | 369 | Statistics |
| Exception | Text |
|---|---|
| CONVERSION_ERROR | Error during conversion to or from UTF-8 |
| ERROR | Error, see error message |