mySQL count occurrences with JOIN (with date parameters) -

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i asked question here: mysql count occurrences join

this question, asked how count occurrences of tag after joining etc.

i'd know how this, checking event publish_date want include tags within past 6 months or year.

**events**  | id  |    publish_date   | +-------------------------+ + 1   | 1377612000        | + 2   | 1377612000        | + 3   | 1377612000        |  **event_categories** (stores tags / categories) | id  | name      | +-----------------+ + 1   | sport     | + 2   | charity   | + 3   | other_tag |   **events_categories** (linking table) | event_id  | event_category_id | +-------------------------------+ +    1      |       1           |    +    2      |       2           |    +    3      |       1           |    +    3      |       2           |

sql returns count of tags (not taking account publish dates)select c.name 

tag_name, count(ec.event_id) occurrences  event_categories c  inner join events_categories ec on c.id = ec.event_category_id  group c.id

thanks! :)

select c.name tag_name, count(ec.event_id) occurrences  event_categories c  inner join events_categories ec on c.id = ec.event_category_id  join events e on e.id = ec.event_id where(e.publish_end_date > (unix_timestamp() -7889229) or e.publish_end_date = 0) group c.id

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