What other features contribute to kdb+ performance?
Kx has refined the architecture in a number of ways, based on close attention to key performance criteria: • a columnar structure for the database simplifies indexing and joins, and dramatically speeds search performance • publish and subscribe mechanisms offload processing from the main server onto chained servers, allowing data services to be provided to a virtually unlimited number of clients • date, time, and timestamp (to nanosecond) are basic data types, making time-ordered analysis extremely fast • it is optimized for bulk inserts and updates, and not just one-transaction-at-a time. Exchange data typically comes in blocks, and does not have to be written one by one.
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