Tag: psql

Tips N’ Tricks – Generating readable reports with plain SQL

Let's say you imported some data, but it contains duplicates. You will have to handle them in some way, but to make sensible choice on how to handle it, you need more information.

So, let's start. We have table:

# \d users
                                    Table "public.users"
   Column   |           Type           |                     Modifiers
------------+--------------------------+----------------------------------------------------
 id         | integer                  | not null default nextval('users_id_seq'::regclass)
 username   | text                     |
 registered | timestamp with time zone |
Indexes:
    "users_pkey" PRIMARY KEY, btree (id)

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Suppressing CONTEXT lines in psql

CONTEXT messages are quite informative, but when you don't need them, they can be real pain in the eyes:

psql:trees.sql:68: NOTICE:  Adding tree structures to table public.testit.
CONTEXT:  SQL function "add_tree_structure" statement 1
psql:trees.sql:68: NOTICE:  Tree table will be public.testit_tree.
CONTEXT:  SQL function "add_tree_structure" statement 1
psql:trees.sql:68: NOTICE:  Primary key in source table is: id
CONTEXT:  SQL function "add_tree_structure" statement 1

I mean – I know the context. I'm writing the sql file right now, how to disable it?

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