Double, single and back quotation marks

[pupillord]

Development Task

MySQL can use single quotes(') or double quotes(") to represent values, but PgSQL can only use single quotes(') to represent values. PgSQL's double quotes(") represent system identifiers, such as table names or field names . MySQL can use back quotes(`) to indicate system identifiers, such as table names and field names. PgSQL also does not support it.

We need to implement the use of these marks in PgSQL，replace their usage in MySQL.

• [ ] Implement the use of double, single and back quotation marks in PgSQL