morrySnow opened a new pull request, #69826:
URL: https://github.com/apache/doris/pull/69826
### What problem does this PR solve?
Issue Number: None
Related PR: #65336, #65879, #69446
Problem Summary: The synchronous-MV suite fails on colliding generated
column names for stddev/variance synonyms, then reaches a stale map_agg
expectation that discards NULL keys. Give the three aggregate outputs distinct
aliases. Apply the order-independent assertion pattern already used on
branch-4.2: check map size, NULL-key presence and values directly instead of
comparing map entry rendering order.
### Release note
None
### Check List (For Author)
- Test: Regression test
- Complete agg_sync_mv suite passed both output generation and a
subsequent full run without generation on the ASAN sandbox.
- Expected output was generated through run-regression-test.sh;
unrelated numerically equivalent formatting changes were excluded after a
programmatic comparison.
- Behavior changed: No (fixture aliases and regression assertions only).
- Does this need documentation: No
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