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Add json(b)_to_tsvector function

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Jsonb has a complex nature so there isn't best-for-everything way to convert it
to tsvector for full text search. Current to_tsvector(json(b)) suggests to
convert only string values, but it's possible to index keys, numerics and even
booleans value. To solve that json(b)_to_tsvector has a second required
argument contained a list of desired types of json fields. Second argument is
a jsonb scalar or array right now with possibility to add new options in a
future.

Bump catalog version

Author: Dmitry Dolgov with some editorization by me
Reviewed by: Teodor Sigaev
Discussion: https://www.postgresql.org/message-id/CA+q6zcXJQbS1b4kJ_HeAOoOc=unfnOrUEL=KGgE32QKDww7d8g@mail.gmail.com
This commit is contained in:
Teodor Sigaev
2018-04-07 20:58:03 +03:00
parent 529ab7bd1f
commit 1c1791e000
10 changed files with 630 additions and 50 deletions
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30
src/test/regress/sql/json.sql
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@ -763,12 +763,42 @@ select to_tsvector('simple', '{"a": "aaa bbb ddd ccc", "b": ["eee fff ggg"], "c"
-- json to tsvector with stop words
select to_tsvector('english', '{"a": "aaa in bbb ddd ccc", "b": ["the eee fff ggg"], "c": {"d": "hhh. iii"}}'::json);
-- json to tsvector with numeric values
select to_tsvector('english', '{"a": "aaa in bbb ddd ccc", "b": 123, "c": 456}'::json);
-- json_to_tsvector
select json_to_tsvector('{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"all"');
select json_to_tsvector('{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"key"');
select json_to_tsvector('{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"string"');
select json_to_tsvector('{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"numeric"');
select json_to_tsvector('{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"boolean"');
select json_to_tsvector('{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '["string", "numeric"]');
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"all"');
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"key"');
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"string"');
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"numeric"');
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"boolean"');
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '["string", "numeric"]');
-- ts_vector corner cases
select to_tsvector('""'::json);
select to_tsvector('{}'::json);
select to_tsvector('[]'::json);
select to_tsvector('null'::json);
-- json_to_tsvector corner cases
select json_to_tsvector('""'::json, '"all"');
select json_to_tsvector('{}'::json, '"all"');
select json_to_tsvector('[]'::json, '"all"');
select json_to_tsvector('null'::json, '"all"');
select json_to_tsvector('{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '""');
select json_to_tsvector('{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '{}');
select json_to_tsvector('{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '[]');
select json_to_tsvector('{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, 'null');
select json_to_tsvector('{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '["all", null]');
-- ts_headline for json
select ts_headline('{"a": "aaa bbb", "b": {"c": "ccc ddd fff", "c1": "ccc1 ddd1"}, "d": ["ggg hhh", "iii jjj"]}'::json, tsquery('bbb & ddd & hhh'));
select ts_headline('english', '{"a": "aaa bbb", "b": {"c": "ccc ddd fff"}, "d": ["ggg hhh", "iii jjj"]}'::json, tsquery('bbb & ddd & hhh'));