Honestly i heard of those, but i'm not using any. I'm quite new to it, so i
wasnt sure what their purpose is.
Il giorno gio 7 feb 2019, 18:43 Eve Freeman <eve.fre...@gmail.com> ha
scritto:
> What's your schema? Do you have a unique constraint or index on the labels
> + id you're merging on?
>
> Eve
>
> On Thu, Feb 7, 2019 at 12:23 PM <andrea.balz...@keypartner.it> wrote:
>
>> Hello everyone, i'm trying to MERGE thousands of nodes using UNWIND and
>> apoc procedures (for a dynamic label creation) using Java Driver as follows:
>>
>> String query =
>> "UNWIND $nodes AS n " +
>> "CALL apoc.merge.node([n.category], {id: n.id}, n) YIELD
>> node RETURN node";
>> session.run( query, params );
>>
>>
>> My database contains something like 150k nodes divided by 16 labels and
>> 130k relationships of the same type. It worked fine so far, it never failed
>> to deliver, but now that i'm trying to create something like 4k new nodes
>> and 5k new relationships at once it took more than 30 minutes. I feel like
>> it should be way faster than this.
>>
>> Am i doing anything wrong? Is it really supposed to be this slow? Is
>> there anything i can do to make this process smoother and to improve
>> performances?
>>
>> Thanks in advance
>>
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