Arithmetic expression support in Parser

[xzdandy]

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• I have searched the EvaDB issues and found no similar feature requests.

Description

Currently, EvaDB does not have arithmetic expression support in https://github.com/georgia-tech-db/evadb/blob/staging/evadb/parser/lark_visitor/_expressions.py. So expression in projection or predicate with arithmetic operations does not work. Simple query to test:

SELECT 1+2;

Use case

No response

Are you willing to submit a PR?

• Yes I'd like to help by submitting a PR!

[aayushacharya]

Hi, may I work on this feature?

[aayushacharya]

I have added PR #1444 corresponding to this feature. I would love to get feedback if changes need to be made. The supported operations in precedence are:

1. Multiplication *, Division / and Modulo %
2. Addition + and Subtraction -