ExpressionOptimizer (SQLProvider)

ExpressionOptimizer Module

This is just a light-weight expression optimizer. It won't do any heavy stuff...

Modules	Description
Methods

Function or value	Description
`doReduction exp` Full Usage: `doReduction exp` Parameters: exp : `Expression` Returns: `Expression`	Does reductions just for a current node. exp : `Expression` Returns: `Expression`
`reductionMethods` Full Usage: `reductionMethods` Returns: `(Expression -> Expression) list`	Used optimization methods Returns: `(Expression -> Expression) list`
`tryVisit exp` Full Usage: `tryVisit exp` Parameters: exp : `Expression` Returns: `Expression`	Expression tree visitor: go through the whole expression tree. Catches the exceptions. exp : `Expression` Returns: `Expression`
`visit exp` Full Usage: `visit exp` Parameters: exp : `Expression` Returns: `Expression`	Expression tree visitor: go through the whole expression tree. exp : `Expression` Returns: `Expression`