forked from docs/doc-exports
Lu, Huayi
a24ca60074
Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com> Co-authored-by: Lu, Huayi <luhuayi@huawei.com> Co-committed-by: Lu, Huayi <luhuayi@huawei.com>
3.2 KiB
3.2 KiB
Testing a Dictionary
The ts_lexize function facilitates dictionary testing.
ts_lexize(dict regdictionary, token text) returns text[] ts_lexize returns an array of lexemes if the input token is known to the dictionary, or an empty array if the token is known to the dictionary but it is a stop word, or NULL if it is an unknown word.
For example:
1 2 3 4 5 6 7 8 9 | SELECT ts_lexize('english_stem', 'stars'); ts_lexize ----------- {star} SELECT ts_lexize('english_stem', 'a'); ts_lexize ----------- {} |
The ts_lexize function expects a single token, not text.
Parent topic: Testing and Debugging Text Search