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new 22b169c9 Update delete.md to be more clear (#165)
22b169c9 is described below
commit 22b169c917cd98085de744818c1d9c9655dae099
Author: Matheus Farias de Oliveira Matsumoto
<[email protected]>
AuthorDate: Mon Sep 25 21:21:22 2023 -0300
Update delete.md to be more clear (#165)
The DELETE clause section is written in a not-so-clear way regarding
deleting a "single vertex". Some might understand that a single vertex is only
one vertex, when actually it means isolated vertices (vertices with no edges
associated with them).
Also, the first sentence on "Delete all vertices and edges" states that
"Running a Match clause will collect all nodes". The "Delete single vertex"
section doesn't start with that, but it does use the MATCH clause for finding
all the nodes as well.
There is a discussion about this on issue #387 on the Apache AGE
repository: https://github.com/apache/age/issues/387
---
docs/clauses/delete.md | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/docs/clauses/delete.md b/docs/clauses/delete.md
index bc3efac5..507be497 100644
--- a/docs/clauses/delete.md
+++ b/docs/clauses/delete.md
@@ -14,9 +14,9 @@ For removing properties, see REMOVE.
You cannot delete a node without also deleting edges that start or end on said
vertex. Either explicitly delete the vertices,or use DETACH DELETE.
-## Delete single vertex
+## Delete isolated vertices
-To delete a vertex, use the DELETE clause.
+To delete vertices with no edges associated with them, use the DELETE clause
only.
Query
@@ -30,7 +30,7 @@ $$) as (v agtype);
```
-Nothing is returned from this query.
+This will delete the vertices (with label Useless) that have no edges. Nothing
is returned from this query.
<table>
@@ -44,9 +44,9 @@ Nothing is returned from this query.
</tr>
</table>
-## Delete all vertices and edges
+## Delete all vertices and edges associated with them
-Running a Match clause will collect all nodes, use the DETACH option to first
delete a vertice's edges then delete the vertex itself.
+To delete all vertices (with label Useless) and the edges associated with
them, use the DETACH option to first delete the vertice's edges then delete the
vertex itself.
Query
