Which Delta Lake feature enables lightning-fast reads for Parquet file formats in Fabric Delta Lake?

Which Delta Lake feature enables lightning-fast reads for Parquet file formats in Fabric Delta Lake?

• A. V-Order function
• B. Indexing
• C. Bloom Filter
• D. Partition Pruning

Answer: (A)

The main idea is that how data is laid out on disk drives performance. V-Order function clusters data across multiple columns so that related values are stored close together. In Fabric Delta Lake, this layout lets a query with filters touch only the small, relevant portions of Parquet files, dramatically reducing I/O and enabling lightning-fast reads. While features like partition pruning or Bloom filters help by skipping partitions or filtering within files, the rapid read performance for Parquet in this context comes most directly from reorganizing data with V-Order.

The main idea is that how data is laid out on disk drives performance. V-Order function clusters data across multiple columns so that related values are stored close together. In Fabric Delta Lake, this layout lets a query with filters touch only the small, relevant portions of Parquet files, dramatically reducing I/O and enabling lightning-fast reads. While features like partition pruning or Bloom filters help by skipping partitions or filtering within files, the rapid read performance for Parquet in this context comes most directly from reorganizing data with V-Order.