jeroos

import json
import os
import duckdb
import boto3
import datetime
from typing import Any, Dict


def construct_prepared_sql_and_params(sql_template, bind_params):
    single_value_params = {k: v for k, v in bind_params.items() if not isinstance(v, list)}

bradtraversy

Docker Commands, Help & Tips

Show commands & management commands

$ docker

Docker version info

fabriziomello

CREATE EXTENSION dblink;

-- customize start
CREATE SERVER pgbouncer FOREIGN DATA WRAPPER dblink_fdw OPTIONS (host '172.17.10.95',
                                                                 port '6432',
                                                                 dbname 'pgbouncer');

CREATE USER MAPPING FOR PUBLIC SERVER pgbouncer OPTIONS (user 'postgres');
-- customize stop

anvk

--- PSQL queries which also duplicated from https://github.com/anvk/AwesomePSQLList/blob/master/README.md
--- some of them taken from https://www.slideshare.net/alexeylesovsky/deep-dive-into-postgresql-statistics-54594192

-- I'm not an expert in PSQL. Just a developer who is trying to accumulate useful stat queries which could potentially explain problems in your Postgres DB.

------------
-- Basics --
------------

-- Get indexes of tables

cristianp6

/**
 * Creates a "logging" schema with an "history" table where are stored records in JSON format
 * 
 * Requires PostgreSQL >= 9.3 since data is stored in JSON format
 *
 * Credits: http://www.cybertec.at/2013/12/tracking-changes-in-postgresql/
 */

/* Create a schema dedicated to logs */
CREATE SCHEMA logging;

ghl3

We couldn’t find that file to show.

petere

CREATE EXTENSION dblink;


-- customize start
CREATE SERVER pgbouncer FOREIGN DATA WRAPPER dblink_fdw OPTIONS (host 'localhost',
                                                                 port '6432',
                                                                 dbname 'pgbouncer');

CREATE USER MAPPING FOR PUBLIC SERVER pgbouncer OPTIONS (user 'pgbouncer');
-- customize stop

Kartones

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

rgreenjr

-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query 
FROM pg_stat_activity 
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' 
ORDER BY query_start desc;

-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query 
FROM pg_stat_activity 
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'