Skip to content

Instantly share code, notes, and snippets.

View bycosta's full-sized avatar

Caio Costa bycosta

  • Mérida, Yucatán, México
View GitHub Profile
@rgreenjr
rgreenjr / postgres_queries_and_commands.sql
Last active July 11, 2025 13:09
Useful PostgreSQL Queries and Commands
-- 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%'
@nikic
nikic / coroutine.php
Created July 14, 2012 13:25
A coroutine example: Streaming XML parsing using xml_parser
<?php
error_reporting(E_ALL);
/* Data can be send to coroutines using `$coroutine->send($data)`. The sent data will then
* be the result of the `yield` expression. Thus it can be received using a code like
* `$data = yield;`.
*/
/* What we're building in this script is a coroutine-based streaming XML parser. The PHP
@SethRobertson
SethRobertson / index.md
Created December 30, 2011 18:22
Commit Often, Perfect Later, Publish Once: Git Best Practices