Add window function (OVER clause) and CTE (WITH clause) support#13

jeffreyaven merged 1 commit intomainstackql/stackql-parser:mainfrom

claude/port-window-functions-ctes-017gSQYGjQBqkJ5BQmU9nXkHstackql/stackql-parser:claude/port-window-functions-ctes-017gSQYGjQBqkJ5BQmU9nXkHCopy head branch name to clipboard