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Previously, parallel index and index-only scans packed the parallel scan descriptor and shared instrumentation (for EXPLAIN ANALYZE) into a single DSM allocation. Since scans may be instrumented without being parallel-aware, and vice versa, using separate DSM chunks -- each with its own TOC key -- is cleaner. A future commit will extend this pattern to other scan node types. Author: Melanie Plageman <melanieplageman@gmail.com> Reviewed-by: Tomas Vondra <tomas@vondra.me> Discussion: https://postgr.es/m/flat/a177a6dd-240b-455a-8f25-aca0b1c08c6e%40vondra.me |
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