Multiple-statement Support

[abacigil]

Adjustment of result object for multiple statements

    - If you query multiple statements, current lib does not support and it returns wrong results in result object.
- Now it supports multiple statements and it returns "result" object as an array and this array has Result object for each statement that requested in query.
- Example for multiple statement : SELECT * FROM users;select * from events;update users set id = 1 where id = 1
- If you set "multipleStatementResult" to "true" in connection configuration object, this feature will be enabled, otherwise nothing will change, same functionality of         original one will be executed.
- Tested with SELECT, UPDATE, DELETE and INSERT

Simple example

- An example for multiple statements is available in "sample" folder.

[joskuijpers]

Hi! Thanks!
Could you add tests, fix the linting errors and remove all those changed lines where only a space was added? It makes the diff unreadable 😄

Also, what if I have opened a connection with multi-result, but I only send a single query? What is the result then?

[abacigil]

I'll try to add tests as soon as possible ( I'm busy recently ), and fix the lines.

It'll work as usual and it'll return "result" object as an array with just 1 response for executed query.

[shilch]

Any updates on this PR?

[rightaway]

I'm happy to test and provide feedback.

[charmander]

This was implemented differently in pg 7: a query that produces multiple result sets resolves with an array.