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%' 

johnynek

package mapreduce

/**
 * This is an attempt to find a minimal set of type classes that describe the map-reduce programming model
 * (the underlying model of Google map/reduce, Hadoop, Spark and others)
 * The idea is to have:
 * 1) lawful types that fully constrain correctness
 * 2) a minimal set of laws (i.e. we can't remove any laws,
 * 3) able to fully express existing map/reduce in terms of these types
 *