[Solved] How do we add a column to resultset to show count in PostgreSQL?

How to optimize this SQL query?

In case you have your own slow SQL query, you can optimize it automatically here.

For the query above, the following recommendations will be helpful as part of the SQL tuning process.
You'll find 3 sections below:

  1. Description of the steps you can take to speed up the query.
  2. The optimal indexes for this query, which you can copy and create in your database.
  3. An automatically re-written query you can copy and execute in your database.
The optimization process and recommendations:
  1. Create Optimal Indexes (modified query below): The recommended indexes are an integral part of this optimization effort and should be created before testing the execution duration of the optimized query.
Optimal indexes for this query:
CREATE INDEX channel_idx_id ON "channel" ("id");
CREATE INDEX message_idx_channel_id_status ON "message" ("channel_id","status");
The optimized query:
SELECT
        ch.name,
        date(msg.date_created),
        msg.status 
    FROM
        message msg,
        channel ch 
    WHERE
        msg.status != 'TRANSFORMED' 
        AND msg.channel_id = ch.id 
        AND msg.date_created BETWEEN to_date('2015-01-10', 'YYYY-MM-DD') AND to_date('2015-01-11', 'YYYY-MM-DD')

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* original question posted on StackOverflow here.