22864f6e02
This undoes my hurried commit 776a2c887, restoring the removed test case in a form that passes with or without force_parallel_mode = regress. It turns out that force_parallel_mode = regress simply fails to mask the Worker lines that will be produced by EXPLAIN (ANALYZE, VERBOSE). I'd say that's a bug in that feature, as its entire alleged reason for existence is to make the EXPLAIN output the same. It's certainly not a bug in the plan node pruning logic. Fortunately, this test case doesn't really need to use ANALYZE, so just drop that. Discussion: https://postgr.es/m/18891.1576109690@sss.pgh.pa.us
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