Reading and Processing CSV via DuckDB
<p>This workflow demonstrates using DuckDB in KNIME to process large CSV files. DuckDB provides measurable performance gains for CSV parsing and in-database aggregation. Parameter limits must be set carefully, as DuckDB consumes additional main memory and CPU. Always close the DuckDB connection to release memory.</p>
Nodes
- DB SQL Executor (Labs)2 ×
- DB Connection Closer1 ×
- DB Connector (Labs)1 ×
- DB GroupBy (Labs)1 ×
- DB Reader (Labs)1 ×
- DB Table Selector (Labs)1 ×
- File Reader1 ×
- GroupBy1 ×
- Timer Info1 ×