Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Adding SubQuery to Speed up Relationship Loading #57

Open
wants to merge 1 commit into
base: main
Choose a base branch
from
Open

Adding SubQuery to Speed up Relationship Loading #57

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
11 changes: 7 additions & 4 deletions Lab 3 - Moving Data/README.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -118,10 +118,13 @@ Well, this is cool. We've got all our nodes loaded in. Now we need to tie them
So, let's add the relationships.

LOAD CSV WITH HEADERS FROM 'https://storage.googleapis.com/neo4j-datasets/hands-on-lab/form13-2023.csv' AS row
MATCH (m:Manager {managerName:row.managerName})
MATCH (c:Company {cusip:row.cusip})
MERGE (m)-[r:OWNS {reportCalendarOrQuarter:date(row.reportCalendarOrQuarter)}]->(c)
SET r.value = toFloat(row.value), r.shares = toInteger(row.shares);
CALL {
WITH row
MATCH (m:Manager {managerName:row.managerName})
MATCH (c:Company {cusip:row.cusip})
MERGE (m)-[r:OWNS {reportCalendarOrQuarter:date(row.reportCalendarOrQuarter)}]->(c)
SET r.value = toFloat(row.value), r.shares = toInteger(row.shares)
} IN TRANSACTIONS OF 10000 ROWS;

This will run for about two minutes. When complete, you should see this:

Expand Down