Module join_parser 

Join query analysis and extraction

This module analyzes JOIN clauses to extract:

• Join type (INNER, LEFT, RIGHT, FULL)
• Key columns for join condition
• Time bounds for stream-stream joins
• Detection of lookup joins vs stream-stream joins

Structs

JoinAnalysis

Analysis result for a JOIN clause

Enums

AsofSqlDirection

Direction for ASOF JOIN time matching.

JoinType

Join type classification

Functions

analyze_join

Analyze a SELECT statement for join information.

count_joins

Count the number of joins in a SELECT.

has_join

Check if a SELECT contains a join.