Sample SQL queries

See the database schema documentation for definitions of tables and columns.

Messages with a private note attached

SELECT mail_id FROM notes

The last 20 messages that have a private note

SELECT mail_id FROM notes ORDER BY mail_id DESC LIMIT 20

Messages with a private note which has been added or modified during the last 7 days

SELECT mail_id FROM notes WHERE last_changed>=now()-'7 days'::INTERVAL

Messages with one or more pictures attached

SELECT mail_id FROM attachments WHERE content_type LIKE 'image/%'

Outgoing messages that have been composed less than one month ago

SELECT m.mail_id FROM mail m WHERE msg_date>=now()-'1 month'::INTERVAL AND status&256=256

Messages with many recipients in To field

(example: more than 20 recipients) 

SELECT mail_id FROM mail_addresses WHERE addr_type=2 GROUP BY mail_id HAVING COUNT(*)>20

Messages with many recipients in To/Cc field

(example: more than 20) 

SELECT mail_id FROM mail_addresses WHERE addr_type IN (2,3) GROUP BY mail_id HAVING COUNT(*)>20

Messages with any sender or recipient from a given domain

SELECT a.mail_id FROM mail_addresses a JOIN addresses USING(addr_id) WHERE email_addr LIKE '%@example.com'

Messages with attachments bigger than a given size

(example: bigger than 1Mb) 

SELECT mail_id FROM attachments WHERE content_size > 1024*1024

See the database schema documentation for definitions of tables and columns.