Tried using official GO driver - Poor performance

Drivers & Stacks Go
1

Hi,

I'm new to Neo4j and I've been playing around with the whole platform. Lately, I've been experimenting with interacting with the DB from a Go program.
To do this, I rewrote this GO code goneo-example using neo4j-go-driver .

For the merge function, I did this

func merge(absoluteURL string, depth int, neo4jDriver neo4j.Driver) error {
	var (
		neo4jSession neo4j.Session
		err          error
	)

	if neo4jSession, err = neo4jDriver.Session(neo4j.AccessModeWrite); err != nil {
		return err
	}
	defer neo4jSession.Close()

	_, err = neo4jSession.Run("MERGE (p: page {url: $url, depth: $depth}) RETURN p", map[string]interface{}{
		"url":   absoluteURL,
		"depth": depth,
	})

	//_, err = neo4jSession.Run("CREATE ()", nil)) // Also poor perfomance

	return err
}

But I'm getting weaker performance (also with CREATE () ).
In the documentation it says:

The driver is thread-safe, while the session or the transaction is not thread-safe.
It is considerably cheap to create new sessions and transactions.

I don't understand why I have poor performance.

2

Do you have an index or node key for :Page(url, depth) ?

for example:
CREATE CONSTRAINT ON ( page:page ) ASSERT (page.url, page.depth) IS NODE KEY;

3

None of that. Start with empty Neo4j database. Performance is quite acceptable with golang-neo4j-bolt-driver

4

Check out the newer version here, blog posts and examples are coming soon:

Yes please follow Eve's advice and add an constraint for :page(url) if that's unique by URL.

5

I successfully use johnnadratowski/golang-neo4j-bolt-driver. What's your fork?

According to your indications, this constraint must be added before any cypher order merge or create.

CREATE CONSTRAINT ON ( page:url) ASSERT (page.url) IS NODE KEY;

Is that right?

6

IS UNIQUE is enough there, NODE KEY is for composite indexes.

you can add constraints any time, they just might fail if you have duplicates

the improved fork is this one: GitHub - mindstand/golang-neo4j-bolt-driver: Golang Bolt driver for Neo4j

7

OK. Thank for your help.
Can you tell me how this fork is improved?