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Type: New Feature
Resolution: Fixed
Priority: Major - P3
Fix Version/s: 8.1.0-rc0
Affects Version/s: None
Component/s: None
Labels:

Assigned Teams:

Query Execution
Backwards Compatibility:
Fully Compatible
Sprint:
QE 2024-04-29, QE 2024-05-13, QE 2024-05-27, QE 2024-06-10, QE 2024-06-24
Confidence Status:
None

Aha! Reference:
None
Tracking Level:
None
Risk Status:
None
Exec Notes:
None
Goal Name:
None
Goal Link:
None

We've caught some bugs by running random combinations of pre-written agg pipeline stages and comparing results with different knobs and feature flags. These pipeline stages are simple, to contrast with the complicated stages that the other fuzzers create. This will find the "glaring" issues more efficiently compared to other fuzzers

Issues found:

~~SERVER-88932~~ (plan cache bug)
~~SERVER-87961~~ (TS rewrite bug)
~~SERVER-88072~~ (TS bucket unpacker)
~~SERVER-87523~~ (SBE stage builder)
~~SERVER-88418~~ (block processing $group accumulator)
~~SERVER-89061~~ (plan cache key)
~~SERVER-90476~~ (wildcard indexes)
~~SERVER-90833~~ (TS bounded sorter)
~~SERVER-90995~~ (TS dependency tracking)
~~SERVER-91405~~ (agg stage optimizations, specifically for $project)
~~SERVER-91573~~ (agg stage optimization, for $match and $addFields)
~~SERVER-91757~~ (hashed indexes)
~~SERVER-91784~~ ($addFields $project issue, CA candidate)

~~SERVER-92824~~ (pipeline rewrite)
~~SERVER-93874~~ (block-processing/TS buckets bug)
~~SERVER-94017~~ (bounded sorter/TS bucket bug)
~~SERVER-94207~~ (TS correctness)
SERVER-99768 (bounded sorter/wildcard indexes)
SERVER-99889 (hashed indexes in SBE)
~~SERVER-100299~~ ($limit not obeyed, CA candidate)
SERVER-101007 ($elemMatch)
SERVER-101257 (rooted $or query, distinct scan logic tassert)
SERVER-101260 (SBE $elemMatch correctness issue)
SERVER-101271 (time-series/block-processing nondeterministic correctness issue)
SERVER-101795 (times-series nested $elemMatch)
SERVER-102075 (distinct scan/isCached explain field)
SERVER-102229 (sbe/time-series server crash)
SERVER-102825 (partial index/plan cache correctness issue)

is depended on by

SERVER-91110 Add project coalescing query property tests

Closed

is related to

SERVER-91404 Randomize property tester in waterfall

Closed

SERVER-94718 Create a property-based test to assert that hinting all indexes returns the same results

Closed

related to

SERVER-87523 $match on meta followed by block-based group can trip tassert

Closed

SERVER-87961 Time series $group rewrite may produce incorrect results when a preceding $project stage projects out accessed fields

Closed

SERVER-88072 Timeseries query errors instead of producing a correct response

Closed

SERVER-88418 Block $top/bottom doesn't break ties with _id correctly

Closed

SERVER-88932 Running a query that uses the plan cache can tassert

Closed

SERVER-89061 Queries where agg pipeline is pushed to SBE may multiplan every time

Closed

SERVER-90476 Query using wildcard index can return incorrect results when comparing to null on non-existent field

Closed

SERVER-90833 Fix incorrect bounded sort optimization when time field is renamed by $addFields

Closed

SERVER-89033 Create plan cache targeted fuzzer-like test

Closed

SERVER-91164 Expand core PBT model to cover more queries

Closed

(8 related to)

Assignee:: Matt Boros

Reporter:: Matt Boros

Participants:: Githook User, Matt Boros

Votes:: 0 Vote for this issue

Watchers:: 7 Start watching this issue

Created:: Apr 11 2024 07:25:38 PM UTC

Updated:: Mar 25 2025 03:42:38 PM UTC

Resolved:: Jun 17 2024 02:54:07 PM UTC

Confidence Status Last Update:: 11/Apr/24 7:40 PM

GA Target Date:: None

Public Preview Target Date:: None

Private Preview Target Date:: None

Experiment Target Date:: None

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