| Date | Description |
|---|---|
| October 2023 | Sort operations pass their results directly to consumer operations, without temporarily storing them on spools. This approach, called pipelining, reduces spool usage, which improves query and system performance and may also reduce storage cost. See EXPLAIN Request Modifier and Pipelined Steps. |
| June 2022 | Minor edits. |
| July 2021 | Minor edits. |