zy-kkk opened a new pull request, #4185: URL: https://github.com/apache/doris-website/pull/4185
Documents the `version`, `timestamp`, `tag` and `branch` parameters of `vector_search()` and `full_text_search()`, added by apache/doris#<TBD> (issue apache/doris#68625). Changes to `lakehouse/catalogs/lance-catalog.mdx` (4.x, English and Chinese): - Time Travel limitations: the search functions now select a snapshot with their own parameters. Index inspection (`SHOW INDEX`, `lance_index_entries()`) still uses the latest version of `main`. - `vector_search()` and `full_text_search()` parameter tables: the four selector parameters. - Vector index selection: when several compatible indexes exist, Doris uses one per query, the first by index name, and fragments it does not cover use Flat Search. Indexes Doris cannot plan with, including legacy indexes without index details, are not used. - Catalog refresh: a refresh with cache invalidation clears the FE's Lance Session only, not the BEs' caches. - New section "Search a Historical Version or Branch": combination rules, what is bound to the selected snapshot, no fallback to the latest version, selection per execution, per relation and in `CREATE TABLE AS SELECT`, the `EXPLAIN` and Profile fields, and known limitations (branches of branches, a branch or Dataset recreated at the same location, FTS indexes without token positions). - Execution flow: the snapshot step names the selectors. ## Versions - [ ] dev - [x] 4.x - [ ] 3.x - [ ] 2.1 or older (not covered by version/language sync gate) ## Languages - [x] Chinese - [x] English ## Docs Checklist - [x] Checked by AI - [ ] Test Cases Built - [x] Updated required version and language counterparts, or explained why not: the dev docs have no Lance catalog page yet, so only 4.x changes. - [x] If only one language changed, confirmed whether source/translation counterparts need sync -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
