Recent releases for cayley

cayley v0.3.0

2014-06-28T02:46:03+00:00

This is the initial binary release for Cayley, having now become `go get` friendly. Current feature list from the README is: - Written in [Go](http://golang.org) - RESTful API - or a REPL if you prefer - Built-in query editor and visualizer - Multiple query languages: - Javascript, with a [Gremlin](http://gremlindocs.com/)-inspired* graph object. - (simplified) [MQL](https://developers.google.com/freebase/v1/mql-overview), for Freebase fans - Plays well with multiple backend stores: - [LevelDB](http://code.google.com/p/leveldb/) for single-machine storage - [MongoDB](http://mongodb.org) - In-memory, ephemeral - Modular design; easy to extend with new languages and backends - Decent test coverage - Speed, where possible. No changes, because initial release.

cayley v0.3.1

2014-08-01T19:16:54+00:00

New in this release: - Loading straight from compressed files - New, compilant NQuads parser (strict compliance variation compiled in, available in a future point release). - Linux/ARM release included (tried with tiny graphs on Raspberry Pi, though it's slow on the SD) Bugfixes: #3: Printing empty fixed iterator #21: Unexpected/incorrect MQL values #72: NQuads silently drops lines with quotes

cayley v0.4.0

2014-08-26T23:13:37+00:00

Worth noting: you may have to reload your data in this version, as the database format has changed (hence the minor version bump). This is part of working with early software. On the plus side, you'll notice quite a few benefits, including the new features. For example, the memory benchmarks: ``` benchmark old ns/op new ns/op delta mult BenchmarkNamePredicate 917680 1072457 +16.87% +1.17x BenchmarkLargeSetsNoIntersection 176704664 48692651 -72.44% -3.63x BenchmarkVeryLargeSetsSmallIntersection 32566448297 154770005 -99.52% -208.33x BenchmarkHelplessContainsChecker 16041341849 40699233 -99.75% -400.00x BenchmarkNetAndSpeed 71710442 16658337 -76.77% -4.30x BenchmarkKeanuAndNet 13858313 12192151 -12.02% -1.14x BenchmarkKeanuAndSpeed 16161303 15231229 -5.75% -1.06x BenchmarkKeanuOther 3748121471 60429073 -98.39% -62.11x BenchmarkKeanuBullockOther 300796920802 99996852 -99.97% -3333.33x ``` If you think those look good, they also get better with bigger backends. The big wins come from optimized iteration, which benefits all backends. **New in this release**: - [Bolt](http://github.com/boltdb/bolt) backend for persistence - Log-structure persistence - Materialize iterator and related speedups - Better memory backend (based on cznic/b) - Better Gremlin session handling - [Underscore.js](http://underscorejs.org) available in Gremlin **Shortlist of Bugfixes**: #9 Use boltdb in the backend #70 Write-log and as_of_time and replication preparation #93 Simplify the Nexter Interface #107 127.0.0.1 by default #106 #108 Use cquads in the web UI loader #114 Materializer regression sparking odd results #117 Data-race when handling many simultaneous queries #125 Underscore.js available in Gremlin environment #104 #129 Better REPL support (history, etc) #141 Parser conformance for IRIRef #145 Gremlin workers

cayley v0.4.1

2015-04-26T00:02:44+00:00

Point release, to get a number of speedups and fixes out to the binary distribution channel. Roadmap for 0.5 includes a number of major open PRs. **Notable features:** - #236 Much faster Mongo support - #180 No Mongo empty values - #153 Gremlin Except() operator - #184 Fix Google Appengine Support - #235 Repeatable builds with Godep **Full changelist:** ``` @jf87: added example n-quad file for gremlin api description @barakmich: Mongo Indexed LinksTo @jzelinskie: store dependencies' versions with godep @barakmich: fix decompressing for http @andrew-d: Add myself to AUTHORS + CONTRIBUTORS @andrew-d: Add Err() and Close() methods to Iterators @barakmich: Fix PrimaryKey Marshalling and add Bolt test @alexwlchan: A couple of small spelling fixes in the docs @barakmich: Rewrite keys into concrete types, remove key package @barakmich: Clean up a little lint and some shadowed variables @LAlbertalli: Add options to ignore duplicate or missing quad @kortschak: Make query/... interfaces more idiomatic @barakmich: bench: Add some grunty Not queries to the integration test (derived from... @buley: Misspellings in Gremlin and Config docs @mataevs: Except/Not Operator for Gremlin. @barakmich: Minor doc fixes @kortschak: Provide informative logging for dups/absences @bkendall: Prevent empty values in cache (using mongo) @kortschak: Make graph.Delta zero state invalid for use @kortschak: Ensure callers get errors when they happen @varadharajan: Allocate 82 bytes instead of 62 bytes in LevelDB's CreateKeyFor method @bcleenders: Prevents repl panic, uses primary key generation for all writers @panamafrancis: Implementation of the PrimaryKey type @barakmich: mathutil is back in line @barakmich: temporary travis fix @kortschak: Fix leveldb change skew @barakmich: Remove the news in the README, add Trello Link @kortschak: Issue160 @kortschak: Don't retain results where the value is empty @kortschak: Ensure we don't examine empty token @kortschak: Replace DebugString with a well defined type returned by Describe @kortschak: Delinting, deadcode removal and vetting ```

cayley v0.5.0

2016-07-03T17:07:04+00:00

We've spun out of the `google` namespace, so this is community build number one. There's some good chatter in IRC and places, and expect some notes in the mailing list soon. The project isn't dead, it was just resting. Now that we can add contributors, it's time to tag and build a release as a baseline. There may be some turbulence as some longstanding changes get merged over the next version or two, so before we do that, here are some binaries for people to try out the latest. **Highlights:** - Postgres/SQL backend support - Add support for LabelContext() to query the Label field across Quads - SaveOptional() - Many, many bugfixes **Full changelog:** ``` barakmich: Add SaveOptional() to save predicates if they exist, and add the dennwc: path: Added SaveOptional dennwc: Fix interface conversion in Gremlin barakmich: fix build on 1.6 -- more accurate interface conversion josephschorr: Make call to `Sprintf` lazy barakmich: query/gremlin, graph/path: Add support for querying with labels Quentin-M: Fix NPE in SQL initialization jzelinskie: dockerfile: fix go install command jzelinskie: initial Dockerfile barakmich: graph: make quadstore init functions idempotent barakmich: Update README to mention Postgres and remove unused trello board jzelinskie: add Triple function Quentin-M: Fix SLOW DELETEs Quentin-M: Fix a deadlock behavior with DELETE transactions Quentin-M: Ensure that quads in a transaction are applied in the desired order. Quentin-M: Use a Size() estimate for SQL Quadstore when noSizes is enabled. barakmich: sql: Combine AND(Fixed, SQL) and fix Save() roundtrips barakmich: graph/sql: Use an IN clause when optimizing a fixed iterator barakmich: query/gremlin: fix building Or iterator, add test barakmich: query/gremlin: Refactor in terms of graph/path Quentin-M: Fix NPE in SQL Quadstore Quentin-M: Improve Transaction: deduplicate quads, allow adding/removing a quad in the same tx barakmich: Fix corners after causing a couple merges ds--: Adds exporting capabilities barakmich: Add migration tool and use protos in Bolt store barakmich: graph: Postgres backend sayden: Typo fix when building cayley from scratch sayden: Order of parameters when using :a and :d are switched Kavec: Refactor for readability kortschak: graph/bolt: don't panic on unitialised store barakmich: Fixes memstore transaction semantics Quentin-M: Make the SQL connection fail-fast Quentin-M: Fix NPEs in SQL Next and Contains barakmich: Roll the Go version forward on Travis builds (new stable) barakmich: Add check for multiple all iterators kortschak: internal: move {config,db,http} into internal skynet: Update README.md neonstalwart: add string comparison to value comparison iterator tmlbl: Small REPL Improvements igm: Fixed multiplier for position of "label" in case of "po" key entry cayleydb: Update README.md barakmich: Docs update based on @KamiQuasi #280 lytics: Use new import path for go-uuid jzelinskie: travis.yml: bump appengine dependency barakmich: Add transaction (a list of deltas) as a primitive for applying sets o… nii236: Widened visualisation box to 100% panamafrancis: Added myself to the A+C barakmich: Add Save and Has API functions Quentin-M: Allow opening a database (bolt, leveldb, mongo) through Go API barakmich: Clean up Linkage definition allonhadaya: In out predicates barakmich: Fix bug where first Bolt iteration ignores deletion barakmich: Fix describe in Or iterator neonstalwart: collapse 2 iterations into 1 in memstore op: Fix nil pointer panic when meta bucket is missing barakmich: Fix LevelDB deleted-triple iterator stack overflow bug neonstalwart: move cmp to where it's used kortschak: graph: remove redundant type barakmich: Go API heyalexej: update leveldb link and fix some https links in README andrew-d: Refactor packages andrew-d: Fix TravisCI tests andrew-d: Remove deprecated ResultTree API Dabaez: Update README.md barakmich: Implement the Unique iterator ```

cayley v0.6.0

2016-10-07T21:23:33+00:00

Current release marks community build number two, introducing major change to data layout and bringing new features to Gremlin. Storage format changed slightly. We highly recommend to do a clean import of the database with a new binary. Cayley now honors types of nquad values. IRIs (``) were converted to untyped strings (`name`), so it was possible for nodes with different types to be loaded as a single node. Now Cayley preserves type information, making these nodes separate. Queries that used IRIs without `<>` quotes will break because of this change. Gremlin now requires IRI it to be in `""` form and the path lib expect these values to be of `quad.IRI` Go type. The same stands for Strings (aka RDF literals) and BNodes (aka blank nodes, `_:name`). Data loader now recognizes few basic typed literals like `"10"^^` and converts them into corresponding native type (`Int` for this example). It may also affect existing queries. Gremlin will automatically convert basic types into corresponding RDF typed literals. **Highlights:** - Typed values support for all backends. Includes types: String, IRI, BNode, Int, Float, Bool, Time. - New traversals in path lib and Gremlin: HasReverse, Skip, Limit, Count, Unique, Comparison/Filter, Regex. - More consistent backends behavior thanks to unified tests. - Updated [docs](https://github.com/cayleygraph/cayley/tree/f03d046d906cc8e207609b4e43788023a669a39c/docs) and added [examples](https://github.com/cayleygraph/cayley/tree/f03d046d906cc8e207609b4e43788023a669a39c/examples). - Updated [Docker image](https://quay.io/repository/cayleygraph/cayley), and added [example](https://github.com/cayleygraph/cayley/blob/f03d046d906cc8e207609b4e43788023a669a39c/docs/Container.md) for it. - Many, many bugfixes and some optimizations. **Full changelog:** ``` gabrys: Fix link to GremlinAPI.md (#477) dennwc: expose Unique via path lib and gremlin; implement and expose Count iterator; resolve #240 dennwc: gremlin: add regex support, make it harder to abuse regexps; add docs explaining why guycook: Implement regex filter as iterator (#474) dennwc: bolt,leveldb: fix AllQuads iterator not skipping deleted quads, add test dennwc: iterator: add variadic arguments to Add, Or and Fixed constructors dennwc: query: Refactor interfaces (#471) dennwc: fix lru panic wayeast: Clone receiver paths (#466) kenshaw: appengine: updating dependency paths and adding documentation (#464) dennwc: gremlin: handle string slice in via parameter kenshaw: appengine: add build constraint (#463) dennwc: Glide migration (#460) dwhitena: user/pass functionality for mongo backend allanino: Fix Docker building (#456) barakmich: gremlin: don't require a session to last as long as the timeout kris-runzer: graph: fix Is*(err error) checkers to properly compare against *DeltaError, add tests dennwc: optimize by default in Iterate helper dennwc: gremlin: clone path objects neonstalwart: simplify the signature of NextLogOut (manual merge of #264) dennwc: graph: add iteration helpers, update examples; resolves #446 dennwc: http: fix json quads decoding dennwc: gremlin: fix ToArray without arguments dennwc: iterator: promote Next to main interface; make NoNext an optional interface oren: Example of BoltDB, update examples/README.md robertmeta: Just better quickstart + examples creation dennwc: query: check type assertions, recover properly in gremlin; fixes #450 josephschorr: Add Clone() to Path for easier reuse of Path segments (#444) dennwc: Wire Skip and Limit to Gremlin. Also fixed #254. dennwc: postgres: store hashes as binary data instead of hex strings dennwc: postgres: prepare each statement in ApplyDeltas dennwc: postgres: generate distinct node insert statements only dennwc: cquads: convert TypedString values to native types automatically on loading dennwc: gremlin: allow to specify multiple conditions in Filter dennwc: mongo: optimize comparison iterator dennwc: Test for typed value comparison and optimization dennwc: gremlin: expose value comparison iterator via path lib, add tests dennwc: gremlin: support for typed values dennwc: gremlin: replace JS-based graph object with reflect-based (rewritten, now it's easier extend) dennwc: comparison: compare only values with the same type, add a test for mixed set dennwc: mongo: use native value types where possible, fix indexing, remove recursion in LinksTo, remove unnecessary roundtrip dennwc: postgres: new table structure, store typed values natively; fix iterators; separate LRU cache dennwc: Update value comparison iterator. Stop graph.Value madness. dennwc: cquads: recognize TypedString and LangString in parser dennwc: Add a test for Raw-to-typed values exchange. Fix memstore not using hashes in map. dennwc: GAE (untyped). More tests. Fixed handling of size and conflicts in postgres. dennwc: quad: add support for few basic types (int, float, bool, time) dennwc: Unify tests for QuadStore. Run Mongo/Postgres in Docker automatically. dennwc: leveldb: use protobuf instead of json, migration code dennwc: bolt: migration code dennwc: add typed fields to protobufs dennwc: graph,query,exporter,path: updated to use typed values dennwc: quad: directions are typed kortschak: graph: provide more meaningful errors for bad actions (#443) josephschorr: Don't iterate over all quads unless necessary (#440) kortschak: clog: fix comment typos and add package comment (#442) dennwc: Implement Skip and Limit iterators (#369) EntilZha: Delete node API (#158) dennwc: Updated Dockerfile (fixed #357) dennwc: fix Unique iterator for non-comparable tokens; fixes #437 kortschak: clog: make nil Logger safe (#436) robertmeta: Sweep through docs update/cleanup oren: remove duplicate in readme (#435) dennwc: fix postgres error on import, fixes #429 dennwc: Added HasReverse function to path lib (#351) drzippie: Added sync.RWMutex to mongo cache (#380) robertmeta: Update docs (README, Locations, Quickstart-As-Lib, Quickstart-As-Application, HACKING, FAQ, Container) robertmeta Rerouting CONTRIBUTING to the discourse, updating CONTRIBUTORS to remove mention of CLA robertmeta: Moving Hacking from wiki to project dennwc: separate log package, resolves #221 ```

cayley v0.6.1

2017-04-12T20:00:09+00:00

This release marks community build number three. It includes all the pending features that can be merged before v0.7, which will be a major release to introduce Reification, and may cause breaking changes. The storage format was not changed for this release. Existing databases should work properly without any migration needed. Cayley now supports multiple SQL flavors, including MySQL and [CockroachDB](https://github.com/cockroachdb/cockroach). To avoid further confusion, our Gremlin-style query language was renamed to Gizmo to emphasize that it's not fully Gremlin-compliant. We also switched to the [Goja JavaScript VM](https://github.com/dop251/goja) for better performance and ES5.1 support. Error handling was also improved for our query language. This release introduces an experimental [GraphQL](http://graphql.org) implementation. Note that it only shares a similar syntax and does not support schema yet. It's a preview feature, so the implementation or API may change in following releases. The import and export formatter system is now modular and can be easily extended. Cayley now supports JSON-LD, Graphviz (aka DOT; export only) and custom binary formats for better import speed. The HTTP API was updated (v2) to support the new formatter system and allows for the streaming of large amounts of data in single request. The recursive iterator is finally available via the Go path library and Gizmo. It allows traversal of a path recursively to potentially unlimited depth. A new Schema library was implemented to allow developers to save and load complex Go objects with a single method call. **Highlights:** - Support for MySQL and CockroachDB. - Gizmo query language with faster ES5.1-complaint VM (supersedes Gremlin). - Experimental GraphQL-like query language. - Modular import/export formats system. - Support for JSON-LD, Graphviz (DOT) and Cayley-specific binary format. - HTTP API v2 with better import/export performance for large data files. - Recursive iterator support (FollowRecursive). - Schema lib (aka ORM or Object Persistence Layer). - IRI prefix registration. **Full changelog:** ``` dennwc: gizmo: expose recursive traversal and update docs dennwc: path: FollowRecursive traverses quad.Values barakmich: add FollowRecursive to the path lib barakmich: graph/iterator: Add Recursive iterator dennwc: graphql: close iterator properly; fixes #545 dennwc: tests: require.NoError instead of Nil dennwc: gae: fix nop iterator optimization dennwc: sql: append WHERE only if constraints are present dennwc: http: CORS, API to get supported formats and RO mode fix dennwc: quads: add json stream format dennwc: mql: fix NPE dennwc: gephi: allow to filter quads in raw mode dennwc: gephi: inline primitive values automatically; inline schema:url dennwc: gephi: initial support for graph stream jtorvald: Updated documentation based on Issue #349 (#541) caosiyang: docs: fix a typo in Quickstart-As-Application.md (#542) jtorvald: Issue #286 init db and config documentation (#538) Yannic: graph: cleanup and more robust options handling (#536) dennwc: initial graphql support dennwc: cli: fix loading of data for non-persistent backend jtorvald: docs: replace broken MQL link, add quick-start cli usage example (#535) mikaelcabot: CockroachDB transaction retries (#534) dennwc: bolt: make bolt concurrent-safe as it should be dennwc: gizmo/gremlin: fix tags for Both traversal; fix #532 dennwc: fix #530 and write errors as plain json dennwc: quad: support for graphviz format dennwc: memstore: close iterator properly dennwc: memstore: do not hash values in QuadDirection dennwc: memstore: no recursion in Next dennwc: http: use formats - implement write api v2; resolves #176 dennwc: mongo: allow to pass full urls; fix #526 dennwc: add missing build tags; find relative path of data files automatically dennwc: sql: support flavors: mysql, cockroachdb dennwc: mongo: remove nodes with no references; fix #517 dennwc: gizmo: allow to register custom IRI prefixes; resolves #505 barakmich: revert proto GetNativeValue and check for crashing nils on describe barakmich: Fill literal strings in MQL the same way we do results in Gremlin dennwc: gremlin: fix limit in ForEach; fixes #518 barakmich: Fix non-persistent load, modernize MQL test barakmich: Fix -v option and debug error barakmich: Tidy up Optional iterator, and allow MQL to support JS-like string syntax dennwc: switch to goja (gizmo) barakmich: Fix dependencies, make Docker an optional dependency, add build tags for docker and appengine tests mzats: Updated examples so that they work in repl/http. (#499) barakmich: Remove IsNode() from the graph.Value definition. dennwc: schema: move well-known types package dennwc: graph: refactor interfaces dennwc: add example for schema library dennwc: ported schema lib dennwc: use vocabulary constants for value types, allow to shorten and expand IRIs dennwc: register known rdf vocabularies, add constants joostverdoorn: Add missing gojsonld dependency to glide (#502) dennwc: bolt/leveldb: stop complaining about existing quads even if ignore is set dennwc: http/repl: handle errors correctly dennwc: nquads: remove duplicated code dennwc: integrate quad formats, replace exporter, use quad helpers in tests dennwc: quad: readers, writers and formats. dennwc: Update minimal Go version dwhitena: Ability to pass the Mongo Backend an externally managed session. (#486) pbsladek: Update quickstart for 0.6.0 (#487) dennwc: add github issue template dennwc: sql: fix sqlNodeIterator size dennwc: fix count iterator dennwc: path: test both optimized and unoptimized case; few more test for gremlin kaneshin: Fix minor typos (#483) barakmich: Add arm64 support ```

cayley v0.7.0

2017-12-24T18:02:14+00:00

Release covers nearly 8 months of work, mostly on implementing meta-backends, new query optimizer, performance improvements and bug fixes. *Note:* From now on we plan to release point releases on regular basis to push fixes and new features faster. Storage format for backends received an upgrade bringing backward incompatible changes. Check [migration guide](./docs/Migration.md) for more details. It only affects the database format, HTTP API remains backward-compatible. This release defines new internal interfaces (meta-backends) for working with various database kinds. Currently three of them are defined: KV, NoSQL, SQL. Each of them significantly simplifies a process of implementing a new backend, as well as allows us to lower maintenance overhead by sharing most optimizations, read and write paths, etc. This also means that optimization work on one backend will be automatically applied to other backends of the same kind in the future. Part of this effort was an implementation of new query representation that we call "shapes". All optimizations like query rewrites and reordering are now done on a generic level, without any backend-specific code. It will allow us to save query stats, make more complex optimizations and even store query templates in the database, or split it to be executed in distributed manner by multiple backends. Since new representation can be manipulated more easily, most backends will now rewrite complex query types into their native query language (SQL, for example). # Highlights - ElasticSearch support - New query optimizer (aka query shapes) - New command line interface - KV meta-backend + port of Bolt and LevelDB to it - NoSQL meta-backend, + port of Mongo and ElasticSearch to it - "Raw" value type is deprecated - Exposed node delete API for HTTP - Consistent behavior for all backends on node delete - New query types in Gizmo: `Labels`, `SaveInPredicates`, `SaveOutPredicates`, see [docs](./docs/GizmoAPI.md) - `Has` traversal now supports value filters - `FollowRecursive` can be limited to a maximal depth - GraphQL now supports quad labels - SQL query optimizer improvements - SQL backends now has their own names: `postgres`, `mysql`, `cockroach` (no need to specify `flavor`) - Significant performance improvements - Smaller Docker image - Minor UI improvements # Breaking changes - Bolt, LevelDB and Mongo backends were rewritten and database format has changed. Old implementations are still available under `bolt1`, `leveldb1` and `mongo1` names. Old backends will be removed in next **minor** release. c26639218ace9bdb7339d47f84785fa6b2bc2569 - SQL table structure has changed 31b0f4852ebb379b8128a56eb9811bc27169f3e0, #617 - Cayley now ignores duplicated quads by default 9cb0eefcc5e88c45d7de822688643f79e88112bc - Gremlin is deprecated and dropped in favor of Gizmo #519 - Count in gizmo is now a 'final' instead of traversal and returns result #576 # Breaking changes (Go) As always, we expect users to pin a specific Cayley version tag with a dependency manager and sync with following changes in the code: - Cayley uses Go version 1.9+ - Bolt, LevelDB and Mongo backends were rewritten and database format has changed. Old implementations are still available under old paths, but will be dropped in next **minor** release. Users are encouraged to update imports to `kv/bolt`, `kv/leveldb` and `nosql/mongo`. - SQL flavors moved to their own packages and needs to be imported separately (`sql/postgres` for example). `sql` backend name will be deprecated in next **major** release. 48e7946cd21045266a16109b2a839424b32086e6 - "Raw" value type (`quad.Raw` and `quad.MakeRaw`) is deprecated and replaced with a helper to preserve at least some compatibility. It's strongly recommended to switch to `quad.String` or `IRI` and `quad.Make`. 41bf496d9dfe622b385c1482789480df8b106472 - Iterator optimizations for backends are mostly disabled. It is recommended to build queries with new `graph/shape` package and run optimizations on it. - Removed unused methods from `QuadStore`: `Horizon`, `FixedIterator`, `Type` d994e2aa16d99de8a60620adc14f97875f21de10, b63faea683e6cbb5d98e64385277c66fe5d2fdd2, #631 - Removed `graph.PrimaryKey` type d994e2aa16d99de8a60620adc14f97875f21de10 - `graph.Value` is now type-safe e4ab526266257d0233baca3e91607ddef01adbb0 - Removed `ID` and `Timestamp` fields from `graph.Delta` - they will be assigned by server 524c8e26293df3d8c94b2641b912fe1c21ce80aa - `RemoveNode` type changed to `quad.Value` to match other methods #607 - Quad writers produced by `graph.NewWriter` and `NewRemover` now requires `Flush` to be called a420e62b5f84d43bd84f03e2638448c853a0c08b - `Iterator` now accepts context for `Next`, `NextPath` and `Contains` f3e814fae02ec4b782fecb6ccb3d8cd832d9b0bd - `Describe` method was removed from `Iterator` and replaced by `String` method on iterator and `graph.DescribeIterator` b491f41f8be954be016610f3c49c4bb3e4699b54 - Iterator type is now a string instead of enum and registration is not necessary anymore # Changelog ``` dennwc: http: expose node delete api; resolves #622 dennwc: deprecate quad.Raw type dennwc: code-wide cleanup dennwc: iterator: remove unused equality function for fixed dennwc: graph: remove unused horizon function dennwc: memstore: use correct size for all iterator dennwc: add context argument to iterators and kv dennwc: kv: track nodes reference count; fixes #617 dennwc: sql: track nodes reference count and simplify dialects; fixes #617 dennwc: memstore: remove nodes if all their references are gone; addresses #617 dennwc: iterator: returns correct subiterator slice for empty And; fixes #659 dennwc: nosql: use base64 instead of hex encoding for hashes dennwc: update Go version to 1.9 dennwc: update integration test, make it a part of suite; move paths as well dennwc: fix tests for predicate save query; fix node tokens for bolt dennwc: nosql: use shapes optimizer for queries dennwc: shape: allow to simplify shapes; add helpers for building node filters dennwc: elastic: port to nosql layer; resolves #653 dennwc: nosql: store each typed value in separate field; support batch inserts dennwc: separate mongo logic and define a generic nosql layer; resolves #652 dennwc: iterator: replace Describe method with a helper dennwc: graphql: support @label directive; resolves #614 dennwc: path/gizmo: support Has with filters; resolves #650 dennwc: bolt,leveldb: swap names to a new kv backend implementations michaelqiu94: ElasticSearch as Supported Backend (#634) dennwc: path,gizmo: allow to save predicates without moving from nodes; fix #591 dennwc: http: allow to serve API without web files; fix #503 dennwc: ui: format json results; resolve #454 dennwc: sql: optimize intersection, value lookup and comparison dennwc: sql: fix params propagation from sub-queries dennwc: sql: rewrite query builder to shapes; fix #563 dennwc: shape: optimize multiple Pages; push Fixed values from Intersect into NodesFrom dennwc: propagate sub-iterator errors from And properly dennwc: stream ops in node delete; return error if node is missing; fix #608 dennwc: add a single package that imports all supported backends derekrliang: Add optional max recursion depth to FollowRecursive (#639) derekrliang: Fix query shape error when query has no result data links (#641) derekrliang: Add running local unit test documentation (#640) dennwc: bolt,leveldb: port to kv layer dennwc: kv: add in-memory implementation dennwc: integration: open and close db for each test set; use table benchmarks dennwc: kv: support for index scans and indexes on multiple directions dennwc: kv: allow to customize indexes dennwc: kv: batch get requests and simplify bucket interface Yannic: Reduce Docker image size (#637) dennwc: sql: separate packages for flavors (#633) Yannic: Remove unused Type function (#631) dennwc: docs: add http api definitions (swagger v3) dennwc: iterator: remove duplicated TagResults code and type registration dennwc: github: simplify issue template header, add slack link dennwc: tag values in recursive iterator correctly dennwc: shape: new query optimizer dennwc: memstore: iterator optimizations dennwc: graph: rewrite pk; remove horizon and ts from delta; rewrite memstore dennwc: kv: registration, scan by prefix, support for flat kv dennwc: integration: allow to load data to remote backends dennwc: gizmo: fix #620 and bump goja version dennwc: graph: helper for writing quads to tx (useful for schema) dennwc: writer: add a direct constructor for single replication Jason Kingsbury: make bloom filter buffer before initialisation dennwc: cli: read query timeout from config file; fix #613 dennwc: graphql: allow full IRI charset in names; resolve #616 dennwc: schema: allow to limit depth; fix #609 joostverdoorn: Set CORS headers on gephi stream dennwc: http: allow to specify query limit; fix #612 joostverdoorn: Add labels morphism and Gizmo API (#610) dennwc: http: do not add .md extension if it's already present; fix #597 dennwc: schema: return an error on write if required field is not set; fix #602 dennwc: accept quad.Value instead of graph.Value for RemoveNode; fix #607 dennwc: print warning on set verbosity for glog; fix #599 dennwc: flush writer in schema example; fix #606 harlantwood: Remove "angry highlighting" from JSON examples dennwc: generic kv backend based on bolt h4ck3rm1k3: query from stdin (#601) chrispassas: Fix example startup command dennwc: make graph.Value safe again h4ck3rm1k3: adding help to repl dennwc: schema: handle id in anonymous struct fields h4ck3rm1k3: Update sidebar.tmpl (#595) dennwc: schema: allow to load objects from path dennwc: cli: implement query command barakmich: conversion check h4ck3rm1k3: Update transaction.go dennwc: graph: batch quads automatically if caller uses single AddQuad on writer gkontos: gae: fix add of previously deleted quads (#580) MarioAriasGa: Glog issues (#579) barakmich: bolt2: use bloom filter to speed insertion barakmich: bolt2: working queries barakmich: graph: Add primitive proto barakmich: Fix glide story; ignore docker deps, `glide.lock` is now sane dennwc: gizmo: make Count a final instead of traversal dennwc: fix contains on recursive iterator dennwc: check for nil result from NameOf; fix #574 dennwc: ignore duplicate quads by default dennwc: docs: add example configs for kubernetes; resolves #327 dennwc: do not load test dataset in container dennwc: golang client for data import/export; add tests for v2 api dennwc: http: support queries in api v2; expose api v2 as a library dennwc: http: get rid of custom handler type dennwc: http: use optional interface to create qs for request dennwc: bind to localhost by default owulveryck: The -host option was missing the port argument mikaelcabot: cockroach: schema changes within transactions are restricted (#567) dennwc: gizmo: generate docs from Go function comments; resolve #520 (#560) dennwc: cli: register glog flags; make conv an alias for convert; resolve #561 oren: Update README.md - add MySQL and CockroachDB dennwc: deprecate gremlin in favor of gizmo; resolve #519 dennwc: cli: deduplication tool for nodes with same properties dennwc: cayley: switch to cobra/viper cli ```

cayley v0.7.1

2018-01-30T23:57:21+00:00

This minor release brings multiple bug fixes, query performance improvements, wildcards query and new CouchDB backend support. As noted in v0.7.0 release, support for legacy `bolt1`, `leveldb1`, `mongo1` backends was dropped. New backend implementation are still available under `bolt`, `leveldb` and `mongo` names. # Highlights - CouchDB support (@elliott5) - PouchDB support via GopherJS (@elliott5) - Support for wildcard queries (#676) - Multiple fixes for `FollowRecursive` (@jtorvald) - Better location of UI assets (@gauravtiwari) - KV and SQL backends will now track node ref counters properly. - Various [fixes](https://github.com/cayleygraph/cayley/milestone/10?closed=1) and performance improvements (1f53d04893ea9b2736e9b2277bbba3f47b88711a, 463642efb05f1cf0e1ce8815c8b68f19ea677e31, 2d6d563950d464777b17658961b3fada8e7c0e16; thx to @jtorvald) As always, we expect Go users to pin a specific Cayley version tag with a dependency manager. # Changelog ``` dennwc: nosql: iterator size should not be negative in case of error dennwc: dock: expose container port on darwin properly dennwc: nosql: if store has only 32 bits, store a copy of int field dennwc: graphtest: test max int roundtrips and comparisons elliott5: ouch: new couchdb/pouchdb backend dennwc: cli: fix database close on init dennwc: iterator: correctly limit depth for recursive; fix #685 dennwc: gizmo: always initialize context; fixes #674 dennwc: graph: unwrap implementation to enable optional interfaces dennwc: sql: copy tags when cloning an iterator dennwc: allow to specify quad file address for non-persistent backends; fix #677 dennwc: iterator: correctly clone error iterator and make a distinct type for it dennwc: gizmo: clarify Count docs jtorvald: All negative values should result in unlimited depth (#679) jtorvald: Javascript error from sigma was not visible dennwc: path: test comparisons with wildcards dennwc: nosql: support regexp and wildcards dennwc: sql: do better job optimizing filters dennwc: sql: optimize regular expressions dennwc: shape,gizmo: support wildcard value filter dennwc: iterator: get some rough size estimates for comparisons dennwc: iterator: calculate real size for LinksTo(Fixed) dennwc: all: add benchmarks dennwc: kv: fix typo in bloom filter init; fix #675 dennwc: cli: allow to pass file name as argument for load and dump dennwc: nosql: do not process invalid deltas dennwc: sql: do not decrement nodes from non-existent quads; return delta errors dennwc: kv: fix decrement of node refs from non-existent quads dennwc: test all writer parameters for each backend dennwc: remove test flag for backends without nodes gc dennwc: bump version to 0.7.1 and drop legacy backends gauravtiwari: Adds locations for looking up static assets (#673) ```

cayley v0.7.2

2018-03-05T16:16:19+00:00

This minor release brings few bug fixes, faster CockroachDB backend, configurable schema package and new GraphQL features. It will be the last feature release before switching to v0.8 branch. Only bug fixes will be backported to v0.7 moving forward. # Highlights - Faster CockroachDB transactions (@dsymonds). - Support for un-nesting objects and expand-all for GraphQL (#686, #692). - Configurable schema package (#694). - Fixes for json-ld, graphviz data formats (@jtorvald). - Fixes for Recursive iterator and optimization of And. As always, we expect Go users to pin a specific Cayley version tag with a dependency manager. # Changelog ``` dennwc: schema: allow to customize behavior; resolves #694 dennwc: graphql: support un-nesting objects into parent; resolves #686 dsymonds: Switch CockroachDB driver from lib/pq to jackc/pgx. dennwc: graphql: support expand all; resolves #692 dennwc: properly close sub-iterator in recursive; fix #693 dsymonds: Rewrite CockroachDB SQL construction to be much faster. dsymonds: Bump cockroachdb Docker tag for testing to the latest version, v1.1.5. dennwc: iterator: do not add empty iterator to And on failed optimization jtorvald: jsonld: added a DocumentLoader to NewReaderFromMap; fix NPE (#689) dennwc: dot: correctly escape slashes; additional file extension ```

cayley v0.7.3

2018-04-23T15:59:17+00:00

This release brings Elasticsearch v6.x support, a transition to dep and few bug fixes. # Highlights - Cayley now supports ElasticSearch v6.x (#711) - `SaveOptional` is exposed in Gizmo (#702) - Transition to dep for dependency management (#704, #703) - Bug fixes (#710, #709, #708, #707) As always, we expect Go users to pin a specific Cayley version tag with dep.

Changelog

``` dennwc: quad: do not un-quote strings in StringToValue; fixes #710 dennwc: add CODEOWNERS dennwc: elastic: support v6; fix #711 skydan: Fix dep ensure and downloading with "follow redirects" option mguentner: hello_bolt: replace TempFile with TempDir mguentner: hello_schema: replace TempFile with TempDir dennwc: gizmo: expose SaveOptional; resolves #702 dennwc: build and test for go 1.10 dennwc: switch from glide to dep glaslos: replace badge png with scaling svg ```

cayley v0.7.4

2018-06-03T15:48:17+00:00

This release fixes few bugs and adds label support for the schema lib. # Highlights - Schema lib now allows adding a label to all written quads (1a0c7cb9443b31a8450ebff58c312cf434e1c579) - Fixed a bug with KV backend that allowed to write duplicate quads in the same TX (#675) - `All()` query for nodes now honors a query limit (#718). Previous behavior can be achieved by passing `?limit=-1` parameter. As always, we expect Go users to pin a specific Cayley version tag with dep.

Changelog

on [Github](https://github.com/cayleygraph/cayley/compare/v0.7.3...v0.7.4) ``` dennwc: graphql: update dependency and test filter with multiple values dennwc: schema: allow to specify quads label on write dennwc: bolt: do not insert duplicate quads found in the same tx; fixes #675 dennwc: set a correct limit in integration tests dennwc: cli: assume stdout as an output when no arguments are specified dennwc: gizmo: All should honor a query limit; fixes #718 robfig: cayley-single.yml: update version tag to latest ```

cayley v0.7.4-2

2018-06-03T15:48:17+00:00

Changelog

cayley v0.7.5

2018-11-26T18:37:49+00:00

This release brings multiple stability fixes and adds initial support for cyclic objects to the schema lib. # Highlights ## Fixes - Fix bug when deleted a reinserted quad in KV backends (@3pCode, https://github.com/cayleygraph/cayley/pull/747). - Fix `Optional` iterator not propagating own tags (@phyrwork, https://github.com/cayleygraph/cayley/pull/739). - Update BoomFilter to avoid panic (@hypirion, https://github.com/cayleygraph/cayley/pull/744). ## Library - schema: Support loading and writing objects containing loops (https://github.com/cayleygraph/cayley/pull/745, https://github.com/cayleygraph/cayley/pull/746). - schema: Fix recursive ID lookup in anonymous fields (@phyrwork, https://github.com/cayleygraph/cayley/pull/733). - New `Resolver` iterator (@phyrwork, https://github.com/cayleygraph/cayley/pull/741). - Add `RefsOf` to `BatchQuadStore` interface (@phyrwork, https://github.com/cayleygraph/cayley/pull/742). As always, we expect Go users to pin a specific Cayley version tag with [dep](https://github.com/golang/dep).

Changelog

on [Github](https://github.com/cayleygraph/cayley/compare/v0.7.4...v0.7.5) ``` dennwc: iterator: do not drop an error in resolver phyrwork: Implement Resolver iterator HaraldNordgren: Bump Go versions and use '.x' to always get latest minor versions 3pCode: update test to check all return codes, update variable name. 3pCode: Update authors and contributors 3pCode: Fix bug when deleted a reinserted quad. cristaloleg: Use type-switch dennwc: schema: support loading objects with loops dennwc: schema: split schema package into multiple files phyrwork: Add RefsOf to the BatchQuadStore interface dennwc: schema: support writing structs that contain loops; fix #731 phyrwork: Fix mock store ValueOf implementation never returning nil hypirion: Update dependency revision on BoomFilters phyrwork: Fix Optional iterator not propagating own tags s_guozhuming: run tests for a specific backend implementations s_guozhuming: pull image from remote repository if there is not image at local machine barakmich: change order of dep grabbing barakmich: Update pouchdb version barakmich: fix goja dep, update travis lynic: Correct db name using mongo backend (#723) phyrwork: Fix Config.idFor() recursive ID lookup in anonymous fields (fixes #732) tooolbox: Begin the Glossary (#728) jtorvald: Added unsigned integer types (#725) ```

Special thanks goes to @phyrwork and @3pCode for their contributions.

cayley v0.7.6

2019-10-14T14:10:26+00:00

The long anticipated release brings a lot of bug fixes and some performance improvements, especially for KV backends. # Highlights ## Backends - New SQLite backend (https://github.com/cayleygraph/cayley/pull/751). - KV and NoSQL backends migrated to [Hidalgo](https://github.com/hidal-go/hidalgo/). - Initial import to KV backends should be much faster now (https://github.com/cayleygraph/cayley/pull/803). ## Query languages - A new `Order()` iterator and corresponding method for Gizmo (https://github.com/cayleygraph/cayley/pull/796). - Set of changes to Gizmo to make it more Gremlin-compatible (https://github.com/cayleygraph/cayley/pull/822, https://github.com/cayleygraph/cayley/pull/849, https://github.com/cayleygraph/cayley/pull/859). - Gizmo can now emit JSON-LD via HTTP API if appropriate `Accept` header is set (https://github.com/cayleygraph/cayley/pull/821). ## Bug fixes - A lot of bug fixes for queries, backends, etc. See the [full changelog](https://github.com/cayleygraph/cayley/compare/v0.7.5...v0.7.6) for details. ## Go library - Switched to Go modules. - Quads package split to it's own [repository](https://github.com/cayleygraph/quad/). ### Breaking changes - The `query.Session` interface changed to be more user-friendly. **Note:** Cayley haven't reached 1.0 yet, thus you should pin a specific version in `go.mod` to avoid breaking changes. We try hard to minimize those.

cayley v0.7.7

2019-10-15T07:42:08+00:00

This patch release fixes a bug shipped in v0.7.6 that assets deprecation warning pops up even though the assets flag is not provided.