hashmap-kz

--- PSQL queries which also duplicated from https://github.com/anvk/AwesomePSQLList/blob/master/README.md
--- some of them taken from https://www.slideshare.net/alexeylesovsky/deep-dive-into-postgresql-statistics-54594192

-- I'm not an expert in PSQL. Just a developer who is trying to accumulate useful stat queries which could potentially explain problems in your Postgres DB.

------------
-- Basics --
------------

-- Get indexes of tables

hashmap-kz

import java.io.*;
import java.util.zip.*;
import java.util.Enumeration;
import java.util.Date;

/**
 * ZipUtil is a program to provide simple zip operations such as creating a zip of a folder
 * or extracting a zip to a folder. This program utilizes the {@link java.util.zip.ZipFile} classes
 * to implement these functions.
 *

hashmap-kz

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;

import java.io.File;
import java.util.ArrayList;
import java.util.List;

/**Directory Structure to json*/
public class DirectoryStructureToJson{