meilisearch/heed

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Fully typed LMDB wrappers with minimum overhead 🐦

Stars: 914
Forks: 82
Open beginner issues: 0
Indexed issues: 32

Dominant language: Rust
License: MIT
Last GitHub push: May 21, 2026
Latest indexed: Sep 19, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue help wanted
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

Open All

32 open issues indexed

stale lmdb reads on openbsd Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

meilisearch/heed#383 · 2 comments · Opened Aug 20, 2026
U64 allowing endianness template parameter is very misleading Open

Difficulty 3/5 1-2 days Newbie friendliness 66/100

meilisearch/heed#381 · Opened Jul 31, 2026
README example does not compile Open

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

meilisearch/heed#378 · Opened Jul 22, 2026
Heed doesn't use official lmdb release/versions which makes it incompatible with other libraries/tools Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

meilisearch/heed#371 · 1 reaction · Opened Apr 30, 2026
Specify minimal rust version Open

Difficulty 1/5 Under an hour Newbie friendliness 70/100

meilisearch/heed#360 · 1 comment · Opened Apr 7, 2026
Transactions must not keep a reference to the environment Open

enhancement good first issue

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

meilisearch/heed#359 · Opened Mar 31, 2026
Range starting with `Bound::Excluded(&vec![])` causes `BadValSize` error (aka `MDB_BAD_VALSIZE`) Open

documentation

Difficulty 3/5 1-2 days Newbie friendliness 55/100

meilisearch/heed#358 · 2 comments · Opened Mar 31, 2026
Double free corruption with transactions in latest heed3 Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 38/100

meilisearch/heed#355 · 3 comments · Opened Jan 5, 2026
Do we really need to wrap `Arc` with `Cow` inside RoTxnInner? Open

good first issue

Difficulty 3/5 1-2 days Newbie friendliness 48/100

meilisearch/heed#350 · 2 comments · Opened Nov 16, 2025
some compilation errors when compiling on cygwin/msys Open

good first issue

Difficulty 4/5 3-5 days Newbie friendliness 38/100

meilisearch/heed#348 · 2 comments · Opened Oct 18, 2025
Is RwTxn Send? Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

meilisearch/heed#339 · 1 comment · Opened Aug 7, 2025
Heed3 : reading encrypted data in parallel threads leads to corruption Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

meilisearch/heed#336 · 2 comments · Opened Jul 8, 2025
Implementing parallel read iterators Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

meilisearch/heed#333 · 4 comments · 2 reactions · Opened May 1, 2025
Make it possible to recycle the `RoTxn` by using the `mdb_txn_reset` function Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

meilisearch/heed#301 · Opened Dec 20, 2024
Add a feature list on the README for heed and heed3 Open

documentation

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

meilisearch/heed#292 · Opened Dec 1, 2024
Add support for checksumming on heed3 Open

Difficulty 2/5 1-3 hours Newbie friendliness 25/100

meilisearch/heed#291 · Opened Dec 1, 2024
[bug] test failure on 32-bit arches Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

meilisearch/heed#282 · 3 comments · Opened Sep 23, 2024
Is it possible to create a generic wrapper struct ? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

meilisearch/heed#268 · 4 comments · Opened Aug 5, 2024
Reduce allocations in `BytesEncode` Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

meilisearch/heed#257 · 1 comment · 1 reaction · Opened Apr 29, 2024
Expose a safe low-level cursor API. Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

meilisearch/heed#255 · 3 comments · 6 reactions · Opened Apr 29, 2024
Heed + rkyv Decoding alignment issues Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

meilisearch/heed#198 · 7 comments · Opened Jul 29, 2023
We can't write the entries of one database into another Open

enhancement feedback

Difficulty 4/5 3-5 days Newbie friendliness 38/100

meilisearch/heed#189 · 6 comments · 1 reaction · Opened Jul 20, 2023
Define a type alias for Dbi Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

meilisearch/heed#186 · Opened Jul 13, 2023
Checking for already opened LMDB Environments Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

meilisearch/heed#180 · 1 comment · Opened Jul 10, 2023
Type the error in the traits `BytesEncode` and `BytesDecode` Open

enhancement feedback

Difficulty 4/5 3-5 days Newbie friendliness 25/100

meilisearch/heed#165 · Opened Feb 20, 2023
Add release-drafter Open

Difficulty 2/5 1-3 hours Newbie friendliness 38/100

meilisearch/heed#156 · Opened Jan 12, 2023
Add workflow to push directly to crates.io Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

meilisearch/heed#155 · Opened Jan 12, 2023
Improve the documentation by bringing the LMDB caveats into it Open

documentation enhancement good first issue

Difficulty 2/5 1-3 hours Newbie friendliness 52/100

meilisearch/heed#150 · Opened Jan 11, 2023
Fix the Database implementation to address the documentation Open

bug documentation

Difficulty 4/5 3-5 days Newbie friendliness 30/100

meilisearch/heed#144 · 4 comments · Opened Jan 5, 2023
Change the lifetimes of the `Iter` types Open

enhancement help wanted

Difficulty 5/5 Over a week Newbie friendliness 25/100

meilisearch/heed#111 · 2 comments · Opened Jun 28, 2021
Document the safety issues with the unnamed database Open

bug documentation good first issue

Difficulty 2/5 1-3 hours Newbie friendliness 42/100

meilisearch/heed#40 · Opened Mar 18, 2020
Make transaction opening more safe Open

enhancement good first issue

meilisearch/heed#20 · 7 comments · 1 assignee · Opened Oct 28, 2019

meilisearch/heed

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