matrixorigin/matrixone

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AI-native HTAP database with Git-for-Data and built-in vector search, serving as the data and memory backbone for intelligent agents and applications.

Stars: 1.9k
Forks: 311
Open beginner issues: 0
Indexed issues: 683
Avg merge: 1d 2h
Merged PRs (30d): 744

Dominant language: Go
License: Apache-2.0
Last GitHub push: Sep 16, 2026
Latest indexed: Sep 17, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue

Beginner friendly Everything

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658 open issues indexed

[Bug]: CI setup-java fails downloading Temurin 8 with socket hang up Open

deferred kind/bug

matrixorigin/matrixone#27075 · 1 comment · 1 assignee · Opened Aug 12, 2026
[Bug]: coverage-enabled pessimistic BVT exceeds its 75-minute CI job budget Open

deferred kind/bug

matrixorigin/matrixone#27071 · 13 comments · 1 assignee · Opened Aug 12, 2026
[Feature Request]: Add a native history-skipping latest-per-series execution path Open

area/performance attention/feature-incomplete kind/feature severity/s0

matrixorigin/matrixone#27068 · 2 comments · 1 assignee · Opened Aug 12, 2026
[Bug]: Coverage CI fails when setup-cmake cannot download Ninja (HTTP 503) Open

deferred kind/bug

matrixorigin/matrixone#27066 · 2 comments · 1 assignee · Opened Aug 12, 2026
[Bug]: CREATE TEMPORARY TABLE ... CLONE leaves an unqueryable session ghost after failing Open

ai-easy deferred kind/bug

matrixorigin/matrixone#27042 · 2 comments · 1 assignee · Opened Aug 12, 2026
[Bug]: unflushed CLUSTER BY time-series reads linearly scan CN logtail state Open

deferred kind/bug

matrixorigin/matrixone#26996 · 1 comment · 1 assignee · Opened Aug 12, 2026
[Bug]: load data 导入数据失败 Open

kind/bug severity/s0

matrixorigin/matrixone#26992 · 3 comments · 1 assignee · Opened Aug 12, 2026
[Feature Request]: support native ASOF JOIN with key and tolerance for time-series workloads Open

area/time-series kind/feature severity/s0

matrixorigin/matrixone#26986 · 1 comment · 1 assignee · Opened Aug 11, 2026
[Bug]: ISCP sync iteration is an unbounded work unit: no per-iteration events/bytes/time cap, whole-interval atomic watermark, full-interval replay Open

kind/bug needs-triage

matrixorigin/matrixone#26973 · 1 assignee · Opened Aug 11, 2026
CDC TPCC 一致性校验失败: bmsql_order_line 同步滞后导致 oorder/order_line 数据不一致 Open

kind/bug severity/s-1

matrixorigin/matrixone#26949 · 8 comments · 1 assignee · Opened Aug 11, 2026
[Bug]: DATA BRANCH DIFF detail output fails with 'unsupported mysql type 0' on DECIMAL columns (Cloud v4.1.4, regression of #24847) Open

ai-easy deferred kind/bug

matrixorigin/matrixone#26928 · 4 comments · 1 assignee · Opened Aug 10, 2026
[Bug]: shuffle HashBuild reports no spill above join_spill_mem threshold Open

kind/bug needs-triage

matrixorigin/matrixone#26924 · 1 comment · 1 assignee · Opened Aug 10, 2026
[Bug]: LEAVE / ITERATE ignored inside REPEAT and WHILE procedures (only LOOP works) Open

deferred kind/bug

matrixorigin/matrixone#26904 · 1 comment · 1 assignee · Opened Aug 10, 2026
[Bug]: Prepared statements execute dropped SQL UDF bodies and keep stale return types after recreate Open

deferred kind/bug needs-triage

matrixorigin/matrixone#26886 · 1 assignee · Opened Aug 10, 2026
[Bug]: updating a HASH partition key to NULL panics in builtInHashPartition Open

area/partition deferred kind/bug

matrixorigin/matrixone#26837 · 1 assignee · Opened Aug 9, 2026
[Bug]: Data Branch MERGE returns success but a 100M-row branch remains different from its base Open

ai-easy deferred kind/bug

matrixorigin/matrixone#26819 · 4 comments · 1 assignee · Opened Aug 9, 2026
[Performance] 长事务逐条 UPDATE 延迟随事务规模增长的 Benchmark Open

ai-heavy deferred

matrixorigin/matrixone#26796 · 18 comments · 1 assignee · Opened Aug 8, 2026
[Bug]: Proxy BVT can read stale lower_case_table_names on a new CN session Open

deferred kind/bug

matrixorigin/matrixone#26793 · 1 assignee · Opened Aug 7, 2026
[Bug]: Prepared CALL statements are rejected before stored procedure execution Open

deferred kind/bug

matrixorigin/matrixone#26777 · 1 assignee · Opened Aug 7, 2026
[Bug]: Client deadline returns cancellation but long DML still commits Open

kind/bug needs-triage

matrixorigin/matrixone#26776 · 2 comments · 1 assignee · Opened Aug 7, 2026
[Task]: Build a robust, resource-aware optimizer beyond TPCH-shaped workloads Open

area/optimizer area/performance kind/design

matrixorigin/matrixone#26768 · 1 comment · 1 assignee · Opened Aug 7, 2026
[Bug]: TPC-DS 1TB Q80 join-spill cannot admit minimum allocation at 40 GiB Open

kind/bug needs-triage

matrixorigin/matrixone#26744 · 1 assignee · Opened Aug 6, 2026
[Bug]: TPC-DS 1TB Q64 exhausts HashBuild budget instead of spilling Open

kind/bug severity/s0

matrixorigin/matrixone#26742 · 2 comments · 1 assignee · Opened Aug 6, 2026
[Bug]: UPDATE moving a row across partitions fails with ExpectedEOB Open

area/partition deferred kind/bug

matrixorigin/matrixone#26735 · 1 comment · 1 assignee · Opened Aug 5, 2026
[Bug] IVF pre-filter 向量查询 EXPLAIN ANALYZE 导致 CN OOMKilled (10M 向量, 100 并发) Open

kind/bug

matrixorigin/matrixone#26720 · 3 comments · 1 assignee · Opened Aug 5, 2026
[Bug]: LEFT JOIN can hang after a table_stats patch selects a RIGHT JOIN runtime-filter plan Open

kind/bug needs-triage

matrixorigin/matrixone#26707 · 1 assignee · Opened Aug 5, 2026
[Feature Request]: Establish first-class MatrixOne ODBC support and compatibility testing Open

area/compatibility kind/feature priority/p0

matrixorigin/matrixone#26677 · 1 comment · 1 assignee · Opened Aug 4, 2026
[Bug]: CREATE CDC rejects the documented 100ms and 200ms Frequency values Open

kind/bug needs-triage

matrixorigin/matrixone#26634 · 1 assignee · Opened Aug 3, 2026
[Bug]: RESUME CDC TASK cannot clear a target-table error while task state is Running Open

kind/bug needs-triage

matrixorigin/matrixone#26633 · 1 assignee · Opened Aug 3, 2026
[Performance] Poor throughput for JDBC / SQL `INSERT INTO ... VALUES` bulk writes (TPC-C load vs PostgreSQL) Open

kind/bug severity/s0

matrixorigin/matrixone#26630 · 1 assignee · Opened Aug 3, 2026
[Feature Request]: High-speed DUMP TABLE and LOAD TABLE Open

kind/feature needs-triage

matrixorigin/matrixone#26628 · 1 assignee · Opened Aug 3, 2026
[Bug]: Suspended account keeps existing sessions runnable until the next kill-worker tick Open

deferred kind/bug

matrixorigin/matrixone#26624 · 1 assignee · Opened Aug 3, 2026
[TestCase]: Java + MyBatis+MO framework scenario testing Open

kind/feature needs-more-tests

matrixorigin/matrixone#26623 · 5 comments · 1 assignee · Opened Aug 3, 2026
[Bug]: multi-CN JOIN on a range-partitioned table panics in CombinedRelData.Split Open

area/partition deferred kind/bug

matrixorigin/matrixone#26564 · 1 comment · 1 assignee · Opened Aug 1, 2026
[BUG] MOI IDC (QA) MO OOM Open

ai-heavy deferred kind/bug

matrixorigin/matrixone#26465 · 5 comments · 1 assignee · Opened Jul 30, 2026
bug: PR #26284 导致 Big Data Test INSERT...SELECT...ORDER BY spill 磁盘满（no space left on device），级联 inner join 返回 count=0 Open

kind/bug severity/s0

matrixorigin/matrixone#26352 · 1 assignee · Opened Jul 29, 2026
[Feature Request]: Unified read-only federated queries across heterogeneous data sources Open

kind/feature needs-triage

matrixorigin/matrixone#26346 · 1 assignee · Opened Jul 29, 2026
[perf] CH-benCHmark Q21/Q22 (`NOT EXISTS` → RIGHT ANTI) forced to OneCN; much slower under concurrent OLTP Open

kind/bug severity/s0

matrixorigin/matrixone#26321 · 1 comment · 1 assignee · Opened Jul 28, 2026
[Bug]: IVFFlat `mode=pre` recall lower than `mode=post` on filtered ANN (`file_id` WHERE) — pre expected ≥ post Open

kind/bug severity/s0

matrixorigin/matrixone#26241 · 1 comment · 1 assignee · Opened Jul 27, 2026
[Bug]: View metadata stays stale after source column type changes Open

kind/bug

matrixorigin/matrixone#26227 · 1 comment · 1 assignee · Opened Jul 27, 2026
[Bug]: ISCP DDL drain lacks an ownership-generation quiescence proof Open

kind/bug needs-triage

matrixorigin/matrixone#26188 · 1 assignee · Opened Jul 26, 2026
[Bug] TPCC warehouse=1000 Go GC 长暂停（500-900ms）导致 Lock wait timeout（4.2-dev / main 均偶现） Open

area/performance kind/bug nightly-regression severity/s0

matrixorigin/matrixone#26182 · 3 comments · 1 assignee · Opened Jul 26, 2026
[Bug]: LOAD DATA with synchronous FULLTEXT maintenance materializes the input in HashBuild Open

kind/bug needs-triage

matrixorigin/matrixone#26173 · 1 assignee · Opened Jul 25, 2026
[Subtask]: Add compatibility and end-to-end coverage for Substrait offload Open

kind/subtask

matrixorigin/matrixone#26159 · 1 comment · 1 assignee · Opened Jul 24, 2026
[Feature Request]: Substrait plan offload to Sirius sidecar Open

kind/feature

matrixorigin/matrixone#26154 · 1 comment · 1 assignee · Opened Jul 24, 2026
perf: big-data insert into select performance optimization. Open

kind/performance severity/s0

matrixorigin/matrixone#26133 · 1 comment · 1 assignee · Opened Jul 24, 2026
[Test subtask]: Regression Testing on MO GPU Clusters Open

matrixorigin/matrixone#26102 · 2 comments · 1 assignee · Opened Jul 23, 2026
[Bug] sysbench1000w Insert Duplicate fails: CN memory pressure (40-41 GiB) causes cascading connection failures Open

kind/bug severity/s0

matrixorigin/matrixone#26088 · 4 comments · 1 assignee · Opened Jul 23, 2026
[Bug]: Window over large fact table under UNION ALL + outer LIMIT not short-circuited (jinpan join_adv q1004) Open

kind/bug severity/s0

matrixorigin/matrixone#26066 · 3 comments · 1 assignee · Opened Jul 23, 2026
[Bug]: CI UT timeout failures in transaction abort and backup protection tests Open

bug/ut kind/bug severity/s0

matrixorigin/matrixone#25997 · 1 comment · 1 assignee · Opened Jul 22, 2026

matrixorigin/matrixone

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