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Eliminate "parallel degree" terminology.

This terminology provoked widespread complaints.  So, instead, rename
the GUC max_parallel_degree to max_parallel_workers_per_gather
(leaving room for a possible future GUC max_parallel_workers that acts
as a system-wide limit), and rename the parallel_degree reloption to
parallel_workers.  Rename structure members to match.

These changes create a dump/restore hazard for users of PostgreSQL
9.6beta1 who have set the reloption (or applied the GUC using ALTER
USER or ALTER DATABASE).
This commit is contained in:
Robert Haas
2016-06-09 09:08:27 -04:00
parent 6581e930a8
commit c9ce4a1c61
19 changed files with 99 additions and 99 deletions

View File

@ -1609,7 +1609,7 @@ _outPathInfo(StringInfo str, const Path *node)
_outBitmapset(str, NULL);
WRITE_BOOL_FIELD(parallel_aware);
WRITE_BOOL_FIELD(parallel_safe);
WRITE_INT_FIELD(parallel_degree);
WRITE_INT_FIELD(parallel_workers);
WRITE_FLOAT_FIELD(rows, "%.0f");
WRITE_FLOAT_FIELD(startup_cost, "%.2f");
WRITE_FLOAT_FIELD(total_cost, "%.2f");