Map Operations

Maps store key-value pairs and require specialized functions to inspect and extract their contents. Unlike arrays where position matters, maps are accessed by key. Key & Value Extraction Use map_keys to audit schema consistency across rows, identify which optional attributes are populated, or build dynamic queries based on available properties. MAP_VALUES() Entry Processing This function is particularly useful when you need to process each key-value pair individually, such as pivoting map contents into separate rows. Performance & Best Practices Maps provide efficient key-based lookups but have different performance characteristics than arrays. Database Execution The database uses hash-based access for map lookups, making them fast regardless of map size. These characteristics make maps th