Release v0.1.2

We are delighted to announce NeuG v0.1.2! This release brings major query language improvements (including the MERGE clause and schema-free COPY FROM), cloud object storage support (S3/OSS/HTTP), comprehensive Parquet export, an enhanced CLI with autocomplete and syntax highlighting, and numerous stability and performance fixes across the storage and query engine.

✨ Features

feat: Support specifying BufferStrategy when open a database by @zhanglei1949 in #162
feat: Support COPY FROM without prior DDL by @shirly121 in #134
feat: Improve Column Remapping Performance in COPY FROM by @shirly121 in #193
feat: Support Multiplicity and Extra Options for Edge Type by @shirly121 in #281
feat: Support MERGE Clause to Ensure Pattern Existence by @shirly121 in #312
feat: Support converting QueryResult to pyarrow table by @zhanglei1949 in #270
feat: Add comprehensive Parquet export support with complex data types by @BingqingLyu in #241
feat: Add S3/OSS/HTTP extension support for cloud object storage by @BingqingLyu in #179
feat: Add rich autocomplete and syntax highlighting by @Mrhs121 in #373
feat: Add AGENTS.md to NeuG by @zhanglei1949 in #327
feat: Update help info of neug-cli by @lnfjpt in #253
feat: Add nightly ldbc interactive benchmark by @lnfjpt in #217
feat: Report nightly result by @lnfjpt in #353
feat: Use sort_key_for_nbr in ldbc benchmark by @lnfjpt in #324
feat: Update codegraph skill with pr-analysis pattern by @BingqingLyu in #362

🐛 Bug Fixes

fix: Maintain the edge count in the CSR by @liulx20 in #209
fix: Fix incorrect passing for buffer_strategy by @zhanglei1949 in #223
fix: Enhance the expressiveness of VertexAccessor and EdgeAccessor by @liulx20 in #215
fix: Refactor the file lock by @liulx20 in #189
fix: Refactor string-column dump by @liulx20 in #172
fix: Fix edge relation getting by @zhanglei1949 in #244
fix: Fix EnsureCapacity for edge table in PropertyGraph by @zhanglei1949 in #275
fix: Disable resizing during the INSERT transaction by @liulx20 in #283
fix: Fix compile of parquet extension by @lnfjpt in #278
fix: Fix Bugs in Duplicated Column Projections by @shirly121 in #276
fix: Support List Expression to Fix Bugs in Unwind by @shirly121 in #280
fix: Fix string dump by @liulx20 in #287
fix: Fix two small bugs by @zhanglei1949 in #301
fix: Use lower_bound for the sorted-region boundary in foreach_nbr_lt by @liulx20 in #295
fix: Adjust precedence for string/list predicates with NOT by @Spockkk0225 in #322
fix: Improve unsupported operator error messages with readable names by @shirly121 in #319
fix: Fix bugs of copy to after load from by @shirly121 in #336
fix: Fix bug for MMapContainer::IsDirty() by @zhanglei1949 in #368
fix: Support Returning Edge Properties Immediately After Edge Creation by @liulx20 in #309
fix: String literals longer than 48 chars crash query pipeline (issue 345) by @ShunyangLi in #350
fix: Bug fix by @zhanglei1949 in #380
fix: Update minimum CMake version to 3.16 by @liulx20 in #375
fix: Disable libunwind in glog by @liulx20 in #383
fix: DROP TABLE no longer leaks across checkpoint boundary by @zhanglei1949 in #399
fix: Avoid copying during edge filtering by @liulx20 in #358
fix: Correct the unsorted boundary for csr by @liulx20 in #394
fix: Fix empty line in neug cli by @lnfjpt in #268
fix: Fix build-wheel error in neug-extension-test by @lnfjpt in #356

🔧 Refactoring & Internals

refactor: Avoid unnecessary MD5 computation by @zhanglei1949 in #195
refactor: Remove idIndexer::insert_safe, add param bool insert_safe for insert by @zhanglei1949 in #175
refactor: Rename USAGE.md to README.md for tools/java_driver by @zhanglei1949 in #218
refactor: Move the file when doing Dump for FileSharedMMap by @zhanglei1949 in #212
refactor: Remove dummy method in lf_indexer by @zhanglei1949 in #227
refactor: Remove wal_uri config and remove dummy work_dir in NeuGDB open by @zhanglei1949 in #230
refactor: Serialize vertex_timestamp into one single file by @zhanglei1949 in #231
refactor: Remove dummy field for NeuGDBService and ensure the correctness of its functions by @zhanglei1949 in #235
refactor: Disable auto checkpoint for read-only mode by @zhanglei1949 in #237
refactor: Directly open degree_list and cap_list in container and avoid copy in dump by @zhanglei1949 in #267
refactor: Refactors the graph schema modification interfaces by @liulx20 in #289
refactor: Avoid passing error_on_conflict to storage layer by @zhanglei1949 in #291
refactor: Merge proto related target into one by @zhanglei1949 in #310
refactor: Update predicate operator size and indexing in tc_fuse.cc by @liulx20 in #332
refactor: Remove redundant field of Table by @zhanglei1949 in #349
refactor: Use Value as the underlying type for default value store in Schema by @zhanglei1949 in #344
refactor: Unify the Edge/Vertex label resolution in UpdateTransaction by @zhanglei1949 in #355
refactor: Replace some dangerous LOG(FATAL) with exception throw by @zhanglei1949 in #360
refactor: Refactor json extension as built-in functionality by @shirly121 in #337
refactor: Wrap VertexTable::indexer_ and v_ts_ as std::shared_ptr by @zhanglei1949 in #391
refactor: Consolidate Schema vertex/edge label check API by @zhanglei1949 in #393
refactor: Rename GenericView/generic_view.h to CsrView/csr_view.h by @zhanglei1949 in #397
refactor: Remove unused LFIndexer::build_empty_LFIndexer by @zhanglei1949 in #403
refactor: Add md5 for string column by @liulx20 in #258

📚 Documentation

docs: Update document since parquet is available since v0.1.1 by @BingqingLyu in #192
docs: Clean up Java API reference doc by @longbinlai in #207
docs: Fix key format for tinysnb tutorial by @longbinlai in #213
docs: Update Parquet support status in data-io index documentation by @longbinlai in #214
docs: Fix docs errors by @Spockkk0225 in #304
docs: Update extensions index.md to reflect JSON built-in status and use PARQUET examples by @BingqingLyu in #406

🛠 CI/CD

ci: Restrict the self-hosted runners used by neug-test by @lnfjpt in #196
ci: Add label for self-hosted runner in neug-test by @lnfjpt in #199
ci: Temporarily disable the multiprocessing test case by @liulx20 in #234
ci: Simplify ccache key by @zhanglei1949 in #285
ci: Add test to ensure service-related API correct by @zhanglei1949 in #259
ci: Use github-hosted runner in neug-test by @lnfjpt in #317

⚠️ Breaking / Migration Notes

Minimum CMake version is now 3.16 (#375).
GenericView is renamed to CsrView; external code referencing the old header must update its include paths (#397).
Schema modification interfaces are reworked — downstream tooling that called the old APIs should be revisited (#289).