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

Update 2.graph-modeling.md #1217

Merged
merged 3 commits into from
Apr 7, 2022
Merged

Update 2.graph-modeling.md #1217

Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
aba7ea1
Update 2.graph-modeling.md
abby-cyber Mar 31, 2022
9324429
Update 2.graph-modeling.md
abby-cyber Mar 31, 2022
26c584c
Update 2.graph-modeling.md
abby-cyber Apr 2, 2022
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
4 changes: 4 additions & 0 deletions docs-2.0/8.service-tuning/2.graph-modeling.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,10 @@ There is no perfect method to model in Nebula Graph. Graph modeling depends on

Usually, various types of queries are validated in test scenarios to assess the overall capabilities of the system. However, in most production scenarios, there are not many types of frequently used queries. You can optimize the data model based on key queries selected according to the Pareto (80/20) principle.

### Full-graph scanning avoidance

Graph traversal can be performed after one or more vertices/edges are located through property indexes or VIDs. But for some query patterns, such as subgraph and path query patterns, the source vertex or edge of the traversal cannot be located through property indexes or VIDs. These queries find all the subgraphs that satisfy the query pattern by scanning the whole graph space which will have poor query performance. Nebula Graph does not implement indexing for the graph structures of subgraphs or paths.

### No predefined bonds between Tags and Edge types

Define the bonds between Tags and Edge types in the application, not Nebula Graph. There are no statements that could get the bonds between Tags and Edge types.
Expand Down