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rgreenjr / postgres_queries_and_commands.sql
Last active March 28, 2023 17:24
Useful PostgreSQL Queries and Commands
View postgres_queries_and_commands.sql
-- 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%'
tedmiston / nodejs-tcp-example.js
Last active March 24, 2023 08:39
Node.js TCP client and server example
View nodejs-tcp-example.js
In the node.js intro tutorial (, they show a basic tcp
server, but for some reason omit a client connecting to it. I added an
example at the bottom.
Save the following server in example.js:
var net = require('net');
alassek /
Last active February 17, 2023 03:30
Extending Arel to support @> operator

I've been doing some work lately with JSON documents in PostgreSQL using jsonb columns. You can query these documents using a GIN index in PG, but the syntax can be a little cumbersome

SELECT "events".* FROM "events" WHERE "events"."body" @> '{"shift":{"user_id":2}}'

You have to construct the right side of the query as a JSON string, which is a bit annoying. So I wondered if I could adapt Arel to do the tedious stuff for me.

gadamc /
Created July 28, 2011 18:46
#!/usr/bin/env python
from pypodio2 import api
import sys, shutil, os, json
c = api.OAuthClient(sys.argv[1],sys.argv[2], sys.argv[3], sys.argv[4])
orginfo = c.transport.get(url = '/org/')
def writerawtext(filename, data):