Function: isOrderBySubset()

function isOrderBySubset(subset, superset): boolean;

function isOrderBySubset(subset, superset): boolean;

Check if one orderBy clause is a subset of another. Returns true if the subset ordering requirements are satisfied by the superset ordering.

Parameters

The ordering requirements to check

OrderBy | undefined

The ordering that might satisfy the requirements

OrderBy | undefined

boolean

true if subset is satisfied by superset

// Subset is prefix of superset
isOrderBySubset([{expr: age, asc}], [{expr: age, asc}, {expr: name, desc}]) // true

// Subset is prefix of superset
isOrderBySubset([{expr: age, asc}], [{expr: age, asc}, {expr: name, desc}]) // true