Function parse_query 

pub fn parse_query(
    input: &str,
    identifier_functions: &HashMap<String, RecurFunction>,
) -> Result<Query, RecurFunctionParseError>

Parses query input string into Query struct.

Arguments

• input - string which includes query.
• identifier_functions - parsed identifiers and their function, uses for checking existing functions.

Returns

parsed query or RecurFunctionParseError wraped into Result.