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Postgresql allows adding comments to objects such as tables. For example I've added a comment to table "mytable" by using this SQL command:

COMMENT ON TABLE mytable IS 'This is my table.';

My question is: If I want to use a SQL-command to get all tables along with their respective comment - how would I do this? What would be the appropriate query for this?

Thanks in advance! Cheers!

Answers

All comments are stored in pg_description

To get the comments on a table, you need to join it to pg_class

As an alternative you can also use the function obj_description() to retrieve this information:

SELECT obj_description(oid)
FROM pg_class
WHERE relkind = 'r'

Edit

In psql you can simply use the \d+ command to show all tables including their comments. Or use the \dd command to show all comments in the system

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