#!/bin/bash

QUERY="SELECT nameicregexeq(rpad('a', 30000, 'a'), rpad('a', 30000, 'a'));"

declare -i idx

idx=0
while [ 1 ]; 
do 
  idx=`expr $idx + 1`
  echo Running query number $idx
  echo $QUERY | psql -h localhost -U joxean testdb & 
  sleep 1
done