| /* |
| * Description : Tests whether an ngram_index is applied to optimize a selection query using the edit-distance-check function on strings. |
| * The index should be applied. |
| * Success : Yes |
| */ |
| |
| drop dataverse test if exists; |
| create dataverse test; |
| use dataverse test; |
| |
| create type DBLPType as closed { |
| id: int32, |
| dblpid: string, |
| title: string, |
| authors: string, |
| misc: string |
| } |
| |
| create dataset DBLP(DBLPType) primary key id; |
| |
| create index ngram_index on DBLP(authors) type ngram(3); |
| |
| write output to nc1:"rttest/inverted-index-basic_ngram-edit-distance-check.adm"; |
| |
| for $o in dataset('DBLP') |
| where edit-distance-check($o.authors, "Amihay Motro", 1)[0] |
| return $o |