#!/bin/bash

# Edit 2020/04/16

# sql script
# https://blog.csdn.net/Hehuyi_In/article/details/95893869
# example：
# sql="select count(*) from pg_stat_activity where state='idle in transaction';"
# message="处于空闲状态的会话"
sql=""
message=""

user=postgres
source /home/$user/.bash_profile


if [ $UID -ne `id -u $user` ];then
        echo -e "\033[31;1mNot Manager of PostgreSQL! \033[0m"
        exit 1
fi

# get value
valuse=`psql postgres -c "$sql" | sed -n '3p' | sed 's/ //g'`

echo "$message=$valuse"