Description

Experience Report

I am currently ingesting a large continuous streaming data set. The most recent data is the most important data. The oldest - either by policy or by least importance needs to be aged-off. Today, we use Neo4J Community Edition. We perform a query to find nodes/relationships older than a specific date and then delete them.

Note: Feature requests are judged based on user

On a sharded collection, if you try to create a custom index (e.g. hash index) with uniqueness, that doesn't include the sharding key (which by default is the autogenerated _key) then it will fail with an error like:

Index creation failed: shard key '_key' must be present in unique index

There's zero documentation that I could find around this, and it's fairly fundamental, since you can't

There are several software projects (e. g. libneo4j-client) that implement the only documented version of the Bolt protocol, version 1.

Neo4j 4 drops support for Bolt version 1 with neo4j/neo4j@9ff0780. As a consequence, Neo4j 4 no longer supports the only version

OrientDB Version: 3.0.30 community
Java Version: 1.8.0_211
OS: Windows 10 Pro

I created Windows Service as specified on OrientDB website and works. Service is installed, I started it and OrientDB Studio works. But when I try to stop it using Windows Services or using OrientDBGraph.exe //SS, it's just waiting and waiting. In Services I see the state "stopping" but only after some 5min, state f

The doc on https://docs.janusgraph.org/basics/schema/#automatic-schema-maker says automatically created property key has data type Object.class

By default, implicitly created edge labels have multiplicity MULTI and implicitly created property keys have cardinality SINGLE and data type Object.class.

However, my testing shows that Default Schema Maker automatically infers the type of propert

1. create an edgetype with prop

> create edge choose(grade int)

2. create the edgetype without any prop using if not exists

> create edge if not exists choose()
Execution succeeded (Time spent: 12.129/13.466 ms)

3. check the schema of choose

describe edge choose;
================
| Field | Type |
================
| grade | int  |
----------------
G

Problem to Solve

At the moment Grakn user of the Docker container may not know how to capture logs from inside a running docker container - especially important when the run has failed.

Current Workaround

There may not be a clean one, but in a case, we could log into the docker container:

$ docker exec -it [container id] /bin/bash
$ cd /path/to/logs
$ [some how upload via 

Validation should be added to directed fields in schemas. This will be done as part of work for version 2 as adding in validation would cause breaking changes.

Pun intended.

Looking over the documentation for the find/request API, I'm having difficulty determining how I specify the starting point for my search when my data set is a DAG that looks like this.

    A   B   C 
    |   |   |
    D   |   E
     \  |  /
        F

A search for D starting from B or C should come up empty, but of course D should be found if starting from A.

To use the seabolt adapter with neo4jrb, on Rails, one needs to add the line

config.neo4j.session.options = {
  adaptor_class: Neo4j::Core::CypherSession::Adaptors::Driver
}

to config/application.rb; but it seems that doing-so means that all configuration is expected to be
there, neo4j.yml is no-longer inspected for configuration. A typical RSpec error is then

Failure/Err

The tabular view of Lots Awarded cuts off the amount of the contract when browsing. Inspecting the element shows the td element contains the right number, but the width of the table cell is too small to actually show. The details show the right amount as well.

![Screenshot_2020-02-02 ЈН 3000 1989 2015 (102560 2015) - Хабајући делови за млинове (ТЕНТ Б) - Aleph](https://user-images.githubuse

perhaps with a screenshot

follow up to #1059

MATCH (a:v_person)-[r*]->(b:v_person)
RETURN a, b, r;

Returns a 500 error in the dev tools, and a [undefined] Internal Server Error in AgensBrowser. This is also preventing edges from being returned with a RETURN * statement as they have no name.
The same query works from the shell.

![var](https://user-images.githubusercontent.com/1766553/42802019-0e5f1118-8991-11e8-84db-54

As a new Crux user, I've spent a lot of time reading and re-reading the docs. The following are some suggestions for improvements to the documentation that I believe will make Crux more easily understood by new users.

1. An overview of the high-level programming concepts from an API point of view. The current documentation spends time discussing bi-temporality, which is great, but doesn't discu

Currently we give a 500 when we try to do an insert/delete if the variable is unbound. Instead we should throw a nice JSON error that can be interpreted on the client.

e.g.

{"when" : [ {"true" : []}, 
                 {"insert" : ["v:a", "v:b", "v:c"]}]}

In PrefixDeclProcessor, the loading silently stops if it sees an empty line, even if there are more prefixes defined below. For this file, only the first prefix will be loaded:

PREFIX osmm: <https://www.openstreetma

I am confused as to how an example such as this, found in your documentation, is compatible with graphql-auth-directives:

const server = new ApolloServer({
  schema: augmentedSchema,
  context: ({ req }) => {
    return {  /* Note: We return a context object containing both `driver` and `req` fields */
      driver,
      req
    };
  }
});

Given that `graphql-auth-directiv

The sample code examples (as appropriate) should be updated to use traversal() by itself rather than forms of new EmptyGraph().traversal()

I had to implement a vertex query containing an or-Condition and just from reading the documentation it was not obvious for me how the logical operators .or(...) and .and(...) work. In order to find out I went through the LogicalSpec:

https://github.com/mpollmeier/gremlin-scala/blob/f64664c4d5b1731bf92045252b1290dd218b748a/gremlin-scala/src/test/scala/gremlin/scala/LogicalSpec.scala

It would

Hello,

I have just started playing around with graphd and it compiles nicely on my Ubuntu 16.04 system.

Is there any more documentation on interfacing and interactive commands?

Perhaps some examples of adding data multiple types of data and querying the data back?

Also, what a but a REST interface with Curl or something?

I'm just trying to get a feel for the capabilities and how to

The AtomTable uses a mutex to guard access to the TypeIndex. This mutex could be mostly avoided by using a concurrent hash map. The one described here: https://preshing.com/20160201/new-concurrent-hash-maps-for-cpp/ seems like a good choice. implementing this requires

• Copying the concurrent hash map source to cog-utils
• Modifying TypeIndex to use it.
• Removing the mutex lock in `AtomT