groonga/groonga — pull request #48 by kou (2013-01-07 08:27:39+00:00)
Title: Add query() function

We can use --match_columns and --query feature in --filter. Both of
the following commands return the same result:

--query version:

select Users \
--output_columns name,_score \
--match_columns "name * 10" \
--query alice

--filter version:

select Users \
--output_columns name,_score \
--filter 'query("name * 10", "alice")'

With query() function, we can specify multiple query()s in a select
command.

TODO:
* Support query_expansion
* Support query_flags
* Document it