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DISTINCT on indexed column scans full index table, prefix_in block filter ineffective

kind/bugSomething isn't workingSomething isn't working

severity/s-1

Status: Open.

Bug

#24241 In matrixorigin/matrixone;

· XuPeng-SH opened on Apr 28, 2026

[Bug]: [3.0-dev standalone regression] TPCH 1T Test failed with 'internal error: hashmap memory exceed hard limit. hard limit 68719476736, inuse 68853694464'

kind/bugSomething isn't workingSomething isn't working

needs-triage

severity/s0Extreme impact: Cause the application to break down and seriously affect the useExtreme impact: Cause the application to break down and seriously affect the use

Status: Open.

Bug

#24213 In matrixorigin/matrixone;

· Ariznawlll opened on Apr 27, 2026

MySQL Compatibility: Support AUTO_INCREMENT on floating-point types (DOUBLE, FLOAT)

kind/compatibilityThe compatibility with mysql 8.0 should be discussed further.The compatibility with mysql 8.0 should be discussed further.

priority/p1Medium priority feature that should be implemented in this versionMedium priority feature that should be implemented in this version

Status: Open.

Feature

#23065 In matrixorigin/matrixone;

· dengn opened on Nov 21, 2025

[Feature Request]: LOAD DATA INFILE with CSV file supports ignoring error rows

kind/feature

severity/s1High impact: Logical errors or data errors that must occurHigh impact: Logical errors or data errors that must occur

Status: Open.

Feature

#23937 In matrixorigin/matrixone;

· heni02 opened on Mar 23, 2026

[Feature Request]: integrate with sirius-db

kind/feature

Status: Open.

Feature

#24067 In matrixorigin/matrixone;

· aunjgr opened on Apr 7, 2026

[Bug]: ORDER BY l2_distance(...) DESC pre/post recall is 0

kind/bugSomething isn't workingSomething isn't working

severity/s0Extreme impact: Cause the application to break down and seriously affect the useExtreme impact: Cause the application to break down and seriously affect the use

Status: Open.

Bug

#24070 In matrixorigin/matrixone;

· heni02 opened on Apr 7, 2026

[Bug]: prod mo 3.0.9 upgrage 2cn oom

kind/bugSomething isn't workingSomething isn't working

severity/s0Extreme impact: Cause the application to break down and seriously affect the useExtreme impact: Cause the application to break down and seriously affect the use

Status: Open.

Bug

#24083 In matrixorigin/matrixone;

· heni02 opened on Apr 8, 2026

feat: AI Agent-driven Test Infrastructure — Automated Test Planning, Case Generation & Execution Orchestration

kind/feature

Status: Open.

Feature

#24086 In matrixorigin/matrixone;

· Ariznawlll opened on Apr 8, 2026

Bug: data branch merge fails with ErrTxnNeedRetryWithDefChanged in multi-CN PESSIMISTIC mode

kind/bugSomething isn't workingSomething isn't working

severity/s0Extreme impact: Cause the application to break down and seriously affect the useExtreme impact: Cause the application to break down and seriously affect the use

Status: Open.

#24099 In matrixorigin/matrixone;

· XuPeng-SH opened on Apr 9, 2026

[Bug]: Vector Force search results are not unique after data reload

kind/bugSomething isn't workingSomething isn't working

severity/s0Extreme impact: Cause the application to break down and seriously affect the useExtreme impact: Cause the application to break down and seriously affect the use

Status: Open.

Bug

#24100 In matrixorigin/matrixone;

· heni02 opened on Apr 9, 2026

[Bug]: Post-filtered vector queries show low recall, while unfiltered recall expected

kind/bugSomething isn't workingSomething isn't working

severity/s0Extreme impact: Cause the application to break down and seriously affect the useExtreme impact: Cause the application to break down and seriously affect the use

Status: Open.

Bug

#24101 In matrixorigin/matrixone;

· heni02 opened on Apr 9, 2026

[Bug]: probe set 20 show low recall

kind/bugSomething isn't workingSomething isn't working

severity/s0Extreme impact: Cause the application to break down and seriously affect the useExtreme impact: Cause the application to break down and seriously affect the use

Status: Open.

Bug

#24103 In matrixorigin/matrixone;

· heni02 opened on Apr 9, 2026

[Bug]: stability-test: tpcc test communication link failure.

kind/bugSomething isn't workingSomething isn't working

severity/s0Extreme impact: Cause the application to break down and seriously affect the useExtreme impact: Cause the application to break down and seriously affect the use

Status: Open.

Bug

#24106 In matrixorigin/matrixone;

· Ariznawlll opened on Apr 9, 2026

[Bug]: ci bvt failed with file not found.

kind/bugSomething isn't workingSomething isn't working

severity/s0Extreme impact: Cause the application to break down and seriously affect the useExtreme impact: Cause the application to break down and seriously affect the use

Status: Open.

Bug

#24112 In matrixorigin/matrixone;

· Ariznawlll opened on Apr 10, 2026

[Bug]: mo SQL执行DIV语句报错

kind/bugSomething isn't workingSomething isn't working

severity/s0Extreme impact: Cause the application to break down and seriously affect the useExtreme impact: Cause the application to break down and seriously affect the use

Status: Open.

Bug

#24108 In matrixorigin/matrixone;

· Aaron-Icarus opened on Apr 9, 2026

[Bug]: Implement full outer join.

kind/bugSomething isn't workingSomething isn't working

severity/s0Extreme impact: Cause the application to break down and seriously affect the useExtreme impact: Cause the application to break down and seriously affect the use

Status: Open.

Bug

#24192 In matrixorigin/matrixone;

· Ariznawlll opened on Apr 24, 2026

[Bug]: q78: Multi-channel ratio aggregation mismatch (top100 significantly differs)

kind/bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#24210 In matrixorigin/matrixone;

· Ariznawlll opened on Apr 27, 2026

[Bug]: q79: Store-city aggregation sequence mismatch after ORDER BY/LIMIT

kind/bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#24211 In matrixorigin/matrixone;

· Ariznawlll opened on Apr 27, 2026

[Bug]: q50: Return-latency bucket aggregation mismatch (6/6 rows differ)

kind/bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#24212 In matrixorigin/matrixone;

· Ariznawlll opened on Apr 27, 2026

[Bug]: query29 (TPC-DS) returns non-deterministic results across runs — multi-table JOIN + GROUP BY + LIMIT

kind/bugSomething isn't workingSomething isn't working

Status: Open.

Bug

#24215 In matrixorigin/matrixone;

· Ariznawlll opened on Apr 27, 2026

[Bug]: query66 (TPC-DS) drops a GROUP BY row AND returns non-deterministic numeric values at scale 1G

kind/bugSomething isn't workingSomething isn't working

severity/s0Extreme impact: Cause the application to break down and seriously affect the useExtreme impact: Cause the application to break down and seriously affect the use

Status: Open.

Bug

#24216 In matrixorigin/matrixone;

· Ariznawlll opened on Apr 27, 2026

[Bug]: EXISTS(A) OR EXISTS(B) correlated subqueries inflate outer rows (semi-join semantics broken)

kind/bugSomething isn't workingSomething isn't working

severity/s0Extreme impact: Cause the application to break down and seriously affect the useExtreme impact: Cause the application to break down and seriously affect the use

Status: Open.

Bug

#24219 In matrixorigin/matrixone;

· Ariznawlll opened on Apr 27, 2026