Given a metadata file with relevant schema, an SQL Engine can be run for a subset of SQL queries.

• The query engine supports Project, Aggregate, Distinct, Where, Group By and Order By operations.
• The data in the tables should be integer.
• To execute open a terminal from the src folder and run 2020201057.sh <sql_query>.
• If the query is valid, the result is output on the terminal window.
• The metadata.txt file is essential for laying out the schema of the tables.