And here is the Postgresql log file for the same "polls" screens.
Same select as in debug_toolbar
It seems, such thing like a connection pool does not exists by default
(every time connection is initialized)
Is it just a setting in Django or in the psycopg2 ?
**************************************************************************************
LOG: statement: SET DATESTYLE TO 'ISO'
LOG: statement: SHOW client_encoding
LOG: statement: SHOW default_transaction_isolation
LOG: statement: BEGIN; SET TRANSACTION ISOLATION LEVEL READ COMMITTED
LOG: statement: SET TIME ZONE E'Europe/Berlin'
LOG: statement: SELECT version()
LOG: statement: SELECT "polls_poll"."id", "polls_poll"."question",
"polls_poll"."pub_date" FROM "polls_poll"
LOG: statement: ROLLBACK
LOG: statement: SET DATESTYLE TO 'ISO'
LOG: statement: SHOW client_encoding
LOG: statement: SHOW default_transaction_isolation
LOG: statement: BEGIN; SET TRANSACTION ISOLATION LEVEL READ COMMITTED
LOG: statement: SET TIME ZONE E'Europe/Berlin'
LOG: statement: SELECT "polls_poll"."id", "polls_poll"."question",
"polls_poll"."pub_date" FROM "polls_poll" WHERE "polls_poll"."id" = 2
LOG: statement: SELECT "polls_choice"."id", "polls_choice"."poll_id",
"polls_choice"."choice", "polls_choice"."votes" FROM "polls_choice"
WHERE "polls_choice"."poll_id" = 2
LOG: statement: ROLLBACK
LOG: statement: SET DATESTYLE TO 'ISO'
LOG: statement: SHOW client_encoding
LOG: statement: SHOW default_transaction_isolation
LOG: statement: BEGIN; SET TRANSACTION ISOLATION LEVEL READ COMMITTED
LOG: statement: SET TIME ZONE E'Europe/Berlin'
LOG: statement: SELECT "polls_poll"."id", "polls_poll"."question",
"polls_poll"."pub_date" FROM "polls_poll" WHERE "polls_poll"."id" = 2
LOG: statement: SELECT "polls_choice"."id", "polls_choice"."poll_id",
"polls_choice"."choice", "polls_choice"."votes" FROM "polls_choice"
WHERE ("polls_choice"."poll_id" = 2 AND "polls_choice"."id" = 10 )
LOG: statement: SELECT (1) AS "a" FROM "polls_choice" WHERE
"polls_choice"."id" = 10
LOG: statement: UPDATE "polls_choice" SET "poll_id" = 2, "choice" =
E'choice2', "votes" = 31 WHERE "polls_choice"."id" = 10
LOG: statement: COMMIT
LOG: statement: SET DATESTYLE TO 'ISO'
LOG: statement: SHOW client_encoding
LOG: statement: SHOW default_transaction_isolation
LOG: statement: BEGIN; SET TRANSACTION ISOLATION LEVEL READ COMMITTED
LOG: statement: SET TIME ZONE E'Europe/Berlin'
LOG: statement: SELECT "polls_poll"."id", "polls_poll"."question",
"polls_poll"."pub_date" FROM "polls_poll" WHERE "polls_poll"."id" = 2
LOG: statement: SELECT "polls_choice"."id", "polls_choice"."poll_id",
"polls_choice"."choice", "polls_choice"."votes" FROM "polls_choice"
WHERE "polls_choice"."poll_id" = 2
LOG: statement: ROLLBACK
**************************************************************************************
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