Rex Johnston 1b42e282d6 PQ: Code tidy ups and fixups of tidyups. ...

parallel_query_aggregate.test: fix statistics
impersonalize language in can_parallel_scan_jointab_access()
remove dead code (trace_parallel_scan_options)
add an assert to ensure we do not use Item_sum_avg without two packed fields
minor comment fixups
remove enum element NESTED_LOOP_DECLINED and use a local bool instead
fix silly code in pwt_row_layout::build_aggregates (throwing away a pointer
  then searching for it again later); 'one' starts as nullptr, because GCC
  cannot see that whole_table is unchanged between the two blocks and warns
  -Wmaybe-uninitialized in an ASAN build
remove pwt_batch* worker->manager streaming functions
tidy up Parallel_scan_partitioner::Scan_ctx::create_chunks to use
  create_chunks_unsplit

The 'one= nullptr' initialisation was added with Claude Code (Opus 5.5),
which traced the -Wmaybe-uninitialized warning to this change and folded
the fix in here.

2026-10-20 08:13:29 +13:00

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