ReadonlyindexMust be ZVecIndexType.FTS (11).
Optional ReadonlytokenizerTokenizer name. Supported values are standard, jieba, and
whitespace. The standard tokenizer follows Unicode word boundaries.
Optional ReadonlyfiltersToken filters. Supported values include lowercase, ascii_folding,
and stemmer.
Optional ReadonlyextraAdditional tokenizer and filter parameters as a JSON object string.
Supported options include max_token_length, jieba_dict_dir,
user_dict_path, cut_mode, and stemmer_lang.
Configuration parameters for a full-text search index on a scalar string field.