Hi,while working on a patch I ran into some crashes that seem to be caused by inconsistent handling of max_parallel_workers - queries still seem to be planned with parallel plans enabled, but then crash at execution.
The attached script reproduces the issue on a simple query, causing crashed in GatherMerge, but I assume the issue is more general.
regards -- Tomas Vondra http://www.2ndQuadrant.com PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
crash-parallel.sql
Description: application/sql
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