0c2f5552d5
Commit b43757171470 added support for parallel builds of BRIN indexes, using code similar to BTREE. But there were to be a couple unnecessary differences, particularly in how the leader waits for the workers, and merges the results. So remove these, to make the code more similar. The leader never waited on the workersdonecv condition variable, but simply called WaitForParallelWorkersToFinish() in _brin_end_parallel() and then merged the per-worker results. This worked correctly, but it seems better to do the wait and merge before _brin_end_parallel(). This commit moves the relevant code to _brin_parallel_heapscan/merge(), which means _brin_end_parallel() remains responsible only for exiting the parallel mode and accumulating WAL usage data. Discussion: https://postgr.es/m/3733d042-71e1-6ae6-5fac-00c12db62db6@enterprisedb.com
PostgreSQL Database Management System
This directory contains the source code distribution of the PostgreSQL database management system.
PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings.
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