Module analytic_parser 

Analytic window function detection and extraction

Analyzes SQL queries for analytic functions like LAG, LEAD, FIRST_VALUE, LAST_VALUE, and NTH_VALUE with OVER clauses. These are per-row window functions (distinct from GROUP BY aggregate windows like TUMBLE/HOP/SESSION).

Structs

AnalyticFunctionInfo

Information about a single analytic function call.

AnalyticWindowAnalysis

Result of analyzing analytic functions in a query.

WindowFrameAnalysis

Result of analyzing window frame functions in a query.

WindowFrameInfo

Information about a single window frame function call.

Enums

AnalyticFunctionType

Types of analytic window functions.

FrameBound

A single bound in a window frame specification.

FrameUnits

Window frame unit type.

WindowFrameFunction

Types of aggregate functions used with window frames.

Functions

analyze_analytic_functions

Analyzes a SQL statement for analytic window functions.

analyze_window_frames

Analyzes a SQL statement for window frame aggregate functions.