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Commit Graph

51 Commits

Author SHA1 Message Date
Kishore Nallan
a6dced3c43 Do all validations upfront before attempting to index fields. 2017-10-23 21:32:51 +05:30
Kishore Nallan
a2ce56fd67 Allow string fields to be filtered on. 
A rather convenient feature to have - but it would be a match of all tokens without typo tolerance.
 2017-10-22 19:52:09 +05:30
Kishore Nallan
0e4517d901 Combine search, facet and sort fields into a single "fields". 
1. All numerical fields are added to sort index automatically since that makes logical sense.
2. Search fields to be used as a facet are to have a `facet: true` property - removes duplication.
3. If someone wants to use a faceted field also to search against (rare scenario), then they can duplicate that field without the `facet: true` property.
 2017-10-17 21:51:07 +05:30
Kishore Nallan
58bc73312d Replicate deletion of document and dropping of collection. 2017-09-14 22:44:29 +05:30
Kishore Nallan
58a10877ee Basics of background replication. 
Supports inserts. Deletion will be tackled next.
 2017-09-14 09:58:44 +05:30
Kishore Nallan
d351523655 Allow results to be sorted on a float field. 2017-08-20 21:15:48 +05:30
Kishore Nallan
f5848be750 Address prefix search issues. 
Score based comparison was broken - test has been enhanced.
 2017-08-18 23:17:28 +05:30
Kishore Nallan
e384b777a1 Collection operations on float fields. 2017-08-10 18:20:58 -04:00
Kishore Nallan
6a6785ef74 Short circuit to speed up single token searches. 
- Refactor token position population
- Store only the query index in topster instead of storing the full offsets.
- Calculate the offsets finally on the results that are to be returned.
 2017-08-08 17:39:23 -04:00
Kishore Nallan
3e54cb4022 API for summary of a collection, including the number of documents indexed in the collection. 2017-07-29 11:46:55 +05:30
Kishore Nallan
916aaf6526 API for fetching a document ID and listing all collections. 2017-07-28 20:39:51 +05:30
Kishore Nallan
ffba0371b0 Proper API responses when pagination exceeds result boundaries. 2017-07-07 18:36:56 +05:30
Kishore Nallan
8295707ed4 Allow pagination of results. 
`page` and `per_page` can be specificed. Simpler to reason about than using the usual `start` and `offset` fields.
 2017-06-15 17:14:10 +05:30
Kishore Nallan
57e03efe1f Contexual snippet only for longer strings. 
Strings under a defined constant token length will be fully highlighted, instead of showing a snippet of relevant matching portion.
 2017-06-14 08:53:23 +02:00
Kishore Nallan
1d5146f7ff Track best-matched token offsets needed for highlighting. 
- We store the best matched token offset positions in Topster KV
- Using run-length encoding (via unions) to pack the offset diffs intelligently
 2017-06-09 13:32:03 -05:00
Kishore Nallan
b7bc974b8e Expose token ranking field properly via the API. 2017-05-27 14:02:32 +05:30
Kishore Nallan
7531f9b13c Add const in more places. 2017-05-22 18:59:14 +05:30
Kishore Nallan
61bfdf027b Fix valgrind errors, plugging other leaks. 2017-05-21 15:59:16 +05:30
Kishore Nallan
a5cd45e362 Rewrite facet implementation. 2017-05-20 13:25:56 +05:30
Kishore Nallan
3478aef573 API for deleting a document by ID. 2017-05-17 20:31:24 +05:30
Kishore Nallan
a25d2f590d Sort order is required only during query time. 2017-05-14 17:36:48 +05:30
Kishore Nallan
060959ad70 Fixed wrong found counts. 2017-05-13 22:31:56 +05:30
Kishore Nallan
f62247cd32 Make the sort_fields take order of sorting. 2017-05-07 21:33:04 +05:30
Kishore Nallan
70dda716c5 Parameterize the token ordering field. 2017-03-26 21:26:01 +05:30
Kishore Nallan
222e2c689a Handle indexing document that does not have all the fields defined in the schema. 2017-03-25 21:45:06 +05:30
Kishore Nallan
7af95e7f22 Refactored the facet implementation and as well as the query interface. 
- Facetable and Rankable fields must be defined upfront during collection creation
- During query time, specific rank and facet fields can be mentioned but they should belong to the set declared previously
 2017-03-19 19:25:42 +05:30
Kishore Nallan
4776b41dc1 Facet implementation. 2017-03-13 21:09:27 +05:30
Kishore Nallan
96921be016 Parse filter query string. 2017-03-06 21:17:13 +05:30
Kishore Nallan
0760e4d01b String based filtering. 2017-03-04 20:58:29 +05:30
Kishore Nallan
14168c48fc Support for "IN" style numerical filter. 2017-03-03 21:50:43 +05:30
Kishore Nallan
aa9945c3c0 Implemented filter on a single int32 value. 2017-02-12 12:51:28 +05:30
Kishore Nallan
3ef10b5bb0 Fix ordering of sequence id rocksdb keys. 2017-02-04 21:32:24 +05:30
Kishore Nallan
b880cfd531 Refactor forarray - split into individual classes. 2017-02-04 16:27:07 +05:30
Kishore Nallan
cab0b36699 Skeleton for filter support. 2017-02-02 09:20:06 +05:30
Kishore Nallan
4e468fb0b9 Index and search on multi-valued numeric field. 2017-01-28 20:32:42 -06:00
Kishore Nallan
385e8cb7a2 Index and search on multi-valued string field. 2017-01-28 10:37:46 -06:00
Kishore Nallan
8475cba007 Minor refactoring of collection manager. 2017-01-26 13:54:30 -06:00
Kishore Nallan
216ac7997a Restore in-memory index on restart. 2017-01-24 22:13:49 -05:00
Kishore Nallan
a6cacf19d0 Return total number of results found in the API. 2017-01-22 21:39:46 +05:30
Kishore Nallan
b7654baa74 Persist collection's next_seq_id. 2017-01-09 22:14:06 +05:30
Kishore Nallan
3e8f9298a9 Remove redundant string conversion for collection_id. 2017-01-08 22:02:35 +05:30
Kishore Nallan
d831c49817 Move duplicate ID detection right inside topster. 2017-01-08 21:44:36 +05:30
Kishore Nallan
2f08eca12e Initial sketch for persisting meta information about collections. 2017-01-08 19:47:17 +05:30
Kishore Nallan
2b6293650e Search across multiple fields. 
Need to write more tests.
 2017-01-01 19:56:26 +05:30
Kishore Nallan
54a60398ab Parameterize rank fields. 2016-12-29 21:45:38 +05:30
Kishore Nallan
0b88e669f6 Make ART fuzzy_search take min_cost and max_cost instead of only max_cost. 2016-12-28 18:16:43 +05:30
Kishore Nallan
12276b651f Base work for supporting multiple indexable fields. 2016-12-22 22:26:33 +05:30
Kishore Nallan
e1526319f7 Building up support for prefix based searching and for ranking token suggestions by either frequency or max_score. 2016-11-27 14:56:15 +05:30
Kishore Nallan
4e10fadeb7 Settle for partial matches when the whole query produces no results. 2016-11-26 17:13:16 +05:30
Kishore Nallan
396e10be5d Refactor collection's search method to be more judicious in using higher costs. 
Earlier, even if one token produced no result, ALL tokens were searched with a higher cost. This change ensures that we first retry only the token that did not produce results with a larger cost before doing the same for other tokens.
 2016-11-24 21:39:20 +05:30