Kouhei Sutou
null+****@clear*****
Tue Jun 6 16:23:24 JST 2017
Kouhei Sutou 2017-06-06 16:23:24 +0900 (Tue, 06 Jun 2017) New Revision: c85fda646dafac45e4515e1696c7c9f3d09ddea5 https://github.com/pgroonga/pgroonga.github.io/commit/c85fda646dafac45e4515e1696c7c9f3d09ddea5 Message: match-jsonb-v2: add more information Added files: reference/operators/match-jsonb-v2.md Modified files: reference/index.md reference/operators/query-jsonb-v2.md Modified: reference/index.md (+1 -1) =================================================================== --- reference/index.md 2017-06-06 16:07:16 +0900 (11f8fd8) +++ reference/index.md 2017-06-06 16:23:24 +0900 (82b5803) @@ -138,7 +138,7 @@ Supported types: `boolean`, `smallint`, `integer`, `bigint`, `real`, `double pre #### `pgroonga.jsonb_ops` operator class (default) {#jsonb-ops} -* [`&@` operator][match-jsonb-v2]: Full text search against all text data in `jsonb` by a keyword + * [`&@` operator][match-jsonb-v2]: Full text search against all text data in `jsonb` by a keyword * [`&?` operator][query-jsonb-v2]: Full text search against all text data in `jsonb` by easy to use query language Added: reference/operators/match-jsonb-v2.md (+108 -0) 100644 =================================================================== --- /dev/null +++ reference/operators/match-jsonb-v2.md 2017-06-06 16:23:24 +0900 (ca4e1d2) @@ -0,0 +1,108 @@ +--- +title: "&@ operator for jsonb type" +upper_level: ../ +--- + +# `&@` operator for `jsonb` type + +Since 1.2.1. + +## Summary + +`&@` operator performs full text search against all texts in `jsonb` by one keyword. + +## Syntax + +```sql +column &@ keyword +``` + +`column` is a column to be searched. It's `jsonb` type. + +`keyword` is a keyword for full text search. It's `text` type. + +## Operator classes + +You need to specify one of the following operator classes to use this operator: + + * `pgroonga.jsonb_ops`: Default for `jsonb`. + + * `pgroonga.jsonb_ops_v2`: For `jsonb`. + +## Usage + +Here are sample schema and data for examples: + +```sql +CREATE TABLE logs ( + record jsonb +); + +CREATE INDEX pgroonga_logs_index ON logs USING pgroonga (record); + +INSERT INTO logs + VALUES ('{ + "message": "Server is started.", + "host": "www.example.com", + "tags": [ + "web", + "example.com" + ] + }'); +INSERT INTO logs + VALUES ('{ + "message": "GET /", + "host": "www.example.com", + "code": 200, + "tags": [ + "web", + "example.com" + ] + }'); +INSERT INTO logs + VALUES ('{ + "message": "Send to <info �� example.com>.", + "host": "mail.example.net", + "tags": [ + "mail", + "example.net" + ] + }'); +``` + +You can perform full text search with one keyword by `&@`: + +(It uses [`jsonb_pretty()` function][jsonb-pretty] provided since PostgreSQL 9.5 for readability.) + +```sql +SELECT jsonb_pretty(record) FROM logs WHERE record &@ 'server'; +-- jsonb_pretty +-- ------------------------------------- +-- { + +-- "host": "www.example.com", + +-- "tags": [ + +-- "web", + +-- "example.com" + +-- ], + +-- "message": "Server is started."+ +-- } +-- (1 row) +``` + +## See also + + * [`jsonb` support][jsonb] + + * [`&?` operator][query-jsonb-v2]: Full text search against all text data in `jsonb` by easy to use query language + + * [`` &` `` operator][script-jsonb-v2]: Advanced search by ECMAScript like query language + + * [`@>` operator][contain-jsonb]: Search by a `jsonb` data + +[jsonb]:../jsonb.html + +[match-jsonb-v2]:match-jsonb-v2.html +[script-jsonb-v2]:script-jsonb-v2.html +[contain-jsonb]:contain-jsonb.html + +[jsonb-pretty]:{{ site.postgresql_doc_base_url.en }}/functions-json.html#FUNCTIONS-JSON-PROCESSING-TABLE Modified: reference/operators/query-jsonb-v2.md (+19 -5) =================================================================== --- reference/operators/query-jsonb-v2.md 2017-06-06 16:07:16 +0900 (1fc7a0c) +++ reference/operators/query-jsonb-v2.md 2017-06-06 16:23:24 +0900 (f5f32a6) @@ -3,11 +3,13 @@ title: "&? operator for jsonb type" upper_level: ../ --- -# `$?` operator for `jsonb` type +# `&?` operator for `jsonb` type + +Since 1.2.1. ## Summary -`$?` operator performs full text search against all texts in `jsonb` with query. +`&?` operator performs full text search against all texts in `jsonb` with query. Query's syntax is similar to syntax that is used in Web search engine. For example, you can use OR search by `KEYWORD1 OR KEYWORD2` in query. @@ -21,7 +23,15 @@ column &? query `query` is a query for full text search. It's `text` type. -[Groonga's query syntax](http://groonga.org/docs/reference/grn_expr/query_syntax.html) is used in `query`. +[Groonga's query syntax][groonga-query-syntax] is used in `query`. + +## Operator classes + +You need to specify one of the following operator classes to use this operator: + + * `pgroonga.jsonb_ops`: Default for `jsonb`. + + * `pgroonga.jsonb_ops_v2`: For `jsonb`. ## Usage @@ -66,7 +76,7 @@ INSERT INTO logs You can perform full text search with multiple keywords by `&?` operator like `KEYWORD1 KEYWORD2`. You can also do OR search by `KEYWORD1 OR KEYWORD2`: -(It uses [`jsonb_pretty()` function]({{ site.postgresql_doc_base_url.en }}/functions-json.html#FUNCTIONS-JSON-PROCESSING-TABLE) provided since PostgreSQL 9.5 for readability.) +(It uses [`jsonb_pretty()` function][jsonb-pretty] provided since PostgreSQL 9.5 for readability.) ```sql SELECT jsonb_pretty(record) FROM logs WHERE record &? 'server OR mail'; @@ -93,7 +103,7 @@ SELECT jsonb_pretty(record) FROM logs WHERE record &? 'server OR mail'; ## See also - * [`jsonb` support](../jsonb.html) + * [`jsonb` support][jsonb] * [`&@` operator][match-jsonb-v2]: Full text search against all text data in `jsonb` by a keyword @@ -101,6 +111,10 @@ SELECT jsonb_pretty(record) FROM logs WHERE record &? 'server OR mail'; * [`@>` operator][contain-jsonb]: Search by a `jsonb` data +[jsonb] + [match-jsonb-v2]:match-jsonb-v2.html [script-jsonb-v2]:script-jsonb-v2.html [contain-jsonb]:contain-jsonb.html + +[jsonb-pretty]:{{ site.postgresql_doc_base_url.en }}/functions-json.html#FUNCTIONS-JSON-PROCESSING-TABLE -------------- next part -------------- HTML����������������������������...下載
