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Full Text Search support for json and jsonb

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The new functions are ts_headline() and to_tsvector.

Dmitry Dolgov, edited and documented by me.
This commit is contained in:
Andrew Dunstan
2017-03-31 14:26:03 -04:00
parent c80b9920fc
commit e306df7f9c
9 changed files with 613 additions and 0 deletions
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18
doc/src/sgml/func.sgml
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@@ -9564,6 +9564,15 @@ CREATE TYPE rainbow AS ENUM ('red', 'orange', 'yellow', 'green', 'blue', 'purple
<entry><literal>to_tsvector('english', 'The Fat Rats')</literal></entry>
<entry><literal>'fat':2 'rat':3</literal></entry>
</row>
<row>
<entry>
<literal><function>to_tsvector(<optional> <replaceable class="PARAMETER">config</> <type>regconfig</> , </optional> <replaceable class="PARAMETER">document</> <type>json(b)</type>)</function></literal>
</entry>
<entry><type>tsvector</type></entry>
<entry>reduce document text to <type>tsvector</></entry>
<entry><literal>to_tsvector('english', '{"a": "The Fat Rats"}'::json)</literal></entry>
<entry><literal>'fat':2 'rat':3</literal></entry>
</row>
<row>
<entry>
<indexterm>
@@ -9610,6 +9619,15 @@ CREATE TYPE rainbow AS ENUM ('red', 'orange', 'yellow', 'green', 'blue', 'purple
<entry><literal>ts_headline('x y z', 'z'::tsquery)</literal></entry>
<entry><literal>x y &lt;b&gt;z&lt;/b&gt;</literal></entry>
</row>
<row>
<entry>
<literal><function>ts_headline(<optional> <replaceable class="PARAMETER">config</replaceable> <type>regconfig</>, </optional> <replaceable class="PARAMETER">document</replaceable> <type>json(b)</>, <replaceable class="PARAMETER">query</replaceable> <type>tsquery</> <optional>, <replaceable class="PARAMETER">options</replaceable> <type>text</> </optional>)</function></literal>
</entry>
<entry><type>text</type></entry>
<entry>display a query match</entry>
<entry><literal>ts_headline('{"a":"x y z"}'::json, 'z'::tsquery)</literal></entry>
<entry><literal>{"a":"x y &lt;b&gt;z&lt;/b&gt;"}</literal></entry>
</row>
<row>
<entry>
<indexterm>