Module window 

Window function expression parser

Parses window function expressions like:

• lag(close, 1) over (partition by symbol order by timestamp)
• row_number() over (order by close desc)
• sum(volume) over (rows between 5 preceding and current row)

Functions

parse_window_from_function_call

Parse window function from a regular function call that has an OVER clause This is called when we detect a function call followed by OVER

parse_window_function_call

Parse a window function call expression