Parser Page

Introduction

The parser takes SQL queries and creates a tree that is then optimized and executed by the Minibase planner.

Ideally, type checking of attributes / relations should be done here, but since the catalog structure was changing while this was being developed, type checking is done by the optimizer.

Bugs in the Parser

Inserts and deletes are not supported through the parser.
It can't handle: VAL op attrName. However, it can do this=> attrName op VAL>

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