4paradigm/OpenMLDB

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OpenMLDB is an open-source machine learning database that provides a feature platform computing consistent features for training and inference.

Stars: 1.7k
Forks: 331
Open beginner issues: 0
Indexed issues: 378
Avg merge: 12d 12h
Merged PRs (30d): 1

Dominant language: C++
License: Apache-2.0
Last GitHub push: Sep 10, 2026
Latest indexed: Sep 13, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue

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378 open issues indexed

Feature requirements of online recommendation platform for openmldb Open

api-server community enhancement execute-engine storage-engine

4paradigm/OpenMLDB#2574 · 19 comments · 3 reactions · 3 assignees · Indexed Sep 13, 2026
unit tests in `src/sdk` should append into list variable `test_list` so coverage will run it Open

build

4paradigm/OpenMLDB#2576 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
During online export (SELECT INTO), when quote='#', # in the string will not be escaped Open

bug storage-engine

4paradigm/OpenMLDB#2589 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 13, 2026
Offline export. When quote='#', the empty string is "" Open

batch-engine bug minor

4paradigm/OpenMLDB#2590 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
Do not print table data and excepted exception stack trace for Java UT Open

4paradigm/OpenMLDB#2591 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
docs about ttl and auto index Open

documentation

4paradigm/OpenMLDB#2600 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
[Question][OLAP]Data Warehouse Open

community enhancement

4paradigm/OpenMLDB#2608 · 5 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
feat: `NaN` value in table rows Open

enhancement

4paradigm/OpenMLDB#2628 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 13, 2026
ddlparser: sql compile options need to check Open

enhancement

4paradigm/OpenMLDB#2634 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
For stand-alone version, the data in the db directory is not cleared after restart Open

bug storage-engine

4paradigm/OpenMLDB#2659 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
There is no data in the result of full table aggregation calculation for an empty table Open

bug execute-engine

4paradigm/OpenMLDB#2667 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
Want to provide a way to query internal tasks Open

enhancement

4paradigm/OpenMLDB#2712 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
doc(udf): merge udf docs for the same function Open

documentation enhancement good first issue

4paradigm/OpenMLDB#2740 · 6 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
router error improvements Open

enhancement

4paradigm/OpenMLDB#2741 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
show database status Open

enhancement sql storage-engine

4paradigm/OpenMLDB#2744 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
`select into` may fail if `HADOOP_CONF_DIR` or `YARN_CONF_DIR` env are accidentally configured Open

bug wontfix

4paradigm/OpenMLDB#2772 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 13, 2026
query trace Open

enhancement

4paradigm/OpenMLDB#2784 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
Get offline log of yarn-cluster jobs with Yarn API Open

batch-engine enhancement

4paradigm/OpenMLDB#2786 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
Add docs about connecting kerberose-enabled yarn cluster for TaskManager Open

documentation enhancement

4paradigm/OpenMLDB#2789 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
hadoop.conf.dir is invalid for TaskManager when setting HADOOP_CONF_DIR Open

bug task-manager

4paradigm/OpenMLDB#2795 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
Fail to drop offline table if the HDFS path is changed Open

batch-engine bug

4paradigm/OpenMLDB#2796 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
Query the offline tables which may not import data will success Open

batch-engine bug

4paradigm/OpenMLDB#2797 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
Stop jobs may not work for local and yarn-client mode Open

bug

4paradigm/OpenMLDB#2798 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
`stop job` won't kill the job process in local mode Open

4paradigm/OpenMLDB#2799 · 0 comments · 0 reactions · 2 assignees · Indexed Sep 13, 2026
Support simple column computing in offline Open

batch-engine enhancement

4paradigm/OpenMLDB#2800 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
gradle can't use macos or allinone version Open

bug java

4paradigm/OpenMLDB#2821 · 2 comments · 0 reactions · 2 assignees · Indexed Sep 13, 2026
request mode: window union over (last join) expect wrong schema of union query Open

bug execute-engine

4paradigm/OpenMLDB#2832 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
online performance with long window optimization degrades after upgrade Open

bug

4paradigm/OpenMLDB#2836 · 0 comments · 0 reactions · 2 assignees · Indexed Sep 13, 2026
WARN log "not fully resolved" for SQL `select 0 in ("0","2")` Open

execute-engine minor

4paradigm/OpenMLDB#2845 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 13, 2026
support `format` argument for `date`, `datediff`, `timestamp`, `unix_timestamp`, etc Open

execute-engine udf

4paradigm/OpenMLDB#2848 · 1 comment · 0 reactions · 2 assignees · Indexed Sep 13, 2026
Spark job is trigger when compiling SQL with offline engine Open

batch-engine bug

4paradigm/OpenMLDB#2880 · 3 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
higher cmake may failed on find jni in required mode Open

bug build

4paradigm/OpenMLDB#2883 · 3 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
Get yarn log for yarn-cluster jobs Open

batch-engine enhancement

4paradigm/OpenMLDB#2917 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 13, 2026
Add unit test for UDAF in offline engine Open

batch-engine enhancement

4paradigm/OpenMLDB#2919 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
SQL Engine assumes all the pointers are valid during the computation period while it is not always true Open

bug high-priority

4paradigm/OpenMLDB#2944 · 1 comment · 0 reactions · 2 assignees · Indexed Sep 13, 2026
test code easy to fail from `single_tablet_test` and `dbms_sdk_test` Open

bug execute-engine test

4paradigm/OpenMLDB#2950 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
support last join in online preview mode (cluster env) Open

enhancement storage-engine

4paradigm/OpenMLDB#2976 · 0 comments · 0 reactions · 2 assignees · Indexed Sep 13, 2026
Support create table like maxcompute Open

batch-engine execute-engine sql

4paradigm/OpenMLDB#2977 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 13, 2026
Fail to print openmldb version with spark distribution Open

batch-engine bug

4paradigm/OpenMLDB#2981 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
udf test for `unix_timestamp("")` might fail Open

bug good first issue test

4paradigm/OpenMLDB#2998 · 5 comments · 0 reactions · 2 assignees · Indexed Sep 13, 2026
reference is broken in docs of built-in functions Open

bug documentation

4paradigm/OpenMLDB#3009 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
Fail to read Hive 3 ACID tables Open

bug

4paradigm/OpenMLDB#3013 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
Category aggregation functions Open

enhancement execute-engine

4paradigm/OpenMLDB#3014 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
load results are different in two load_mode Open

batch-engine bug high-priority storage-engine

4paradigm/OpenMLDB#3015 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
cli: print is unclear when a row is empty string Open

bug enhancement

4paradigm/OpenMLDB#3017 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
more flexible support to window (SimpleOps) Open

enhancement execute-engine

4paradigm/OpenMLDB#3024 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
diag: find 'Java heap space' error when inspect offline Open

4paradigm/OpenMLDB#3038 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
can't lift child `i` to list for udf functions which requires params as list Open

bug execute-engine

4paradigm/OpenMLDB#3039 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
base and pre-aggr table may not be consistent if the leader changes Open

bug high-priority

4paradigm/OpenMLDB#3044 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026
`clear-all.sh` doc Open

4paradigm/OpenMLDB#3047 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 13, 2026

4paradigm/OpenMLDB

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