Skip to content

When deleting nodes, make sure there's no relationships. #325

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

Merged
merged 1 commit into from
Apr 17, 2025
Merged

When deleting nodes, make sure there's no relationships. #325

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
47 changes: 29 additions & 18 deletions src/ops/storages/neo4j.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -396,6 +396,8 @@ impl ExportContext {
RowMappingSpec::Node(node_spec) => {
let delete_cypher = formatdoc! {"
OPTIONAL MATCH (old_node:{label} {key_fields_literal})
WITH old_node
WHERE NOT (old_node)--()
DELETE old_node
FINISH
",
Expand Down Expand Up @@ -894,11 +896,17 @@ impl components::Operator for SetupComponentOperator {
metric,
vector_size,
} => {
format!(
r#"CREATE VECTOR INDEX {name} IF NOT EXISTS FOR {matcher} ON {qualifier}.{field_name} OPTIONS
{{ indexConfig: {{`vector.dimensions`: {vector_size}, `vector.similarity_function`: '{metric}'}}}}"#,
formatdoc! {"
CREATE VECTOR INDEX {name} IF NOT EXISTS
FOR {matcher} ON {qualifier}.{field_name}
OPTIONS {{
indexConfig: {{
`vector.dimensions`: {vector_size},
`vector.similarity_function`: '{metric}'
}}
}}",
name = key.name,
)
}
}
});
Ok(graph.run(query).await?)
Expand Down Expand Up @@ -1013,30 +1021,33 @@ impl ResourceSetupStatusCheck for SetupStatusCheck {
async fn apply_change(&self) -> Result<()> {
let graph = self.graph_pool.get_graph(&self.conn_spec).await?;
if let Some(data_clear) = &self.data_clear {
let delete_rel_query = neo4rs::query(&format!(
r#"
let delete_rel_query = neo4rs::query(&formatdoc! {"
CALL {{
MATCH {matcher}
WITH {var_name}
DELETE {var_name}
MATCH {matcher}
WITH {var_name}
{optional_orphan_condition}
DELETE {var_name}
}} IN TRANSACTIONS
"#,
",
matcher = data_clear.core_elem_type.matcher(CORE_ELEMENT_MATCHER_VAR),
var_name = CORE_ELEMENT_MATCHER_VAR,
));
optional_orphan_condition = match data_clear.core_elem_type {
ElementType::Node(_) => format!("WHERE NOT ({CORE_ELEMENT_MATCHER_VAR})--()"),
_ => "".to_string(),
},
});
graph.run(delete_rel_query).await?;

for node_label in &data_clear.dependent_node_labels {
let delete_node_query = neo4rs::query(&format!(
r#"
let delete_node_query = neo4rs::query(&formatdoc! {"
CALL {{
MATCH (n:{node_label})
WHERE NOT (n)--()
DELETE n
MATCH (n:{node_label})
WHERE NOT (n)--()
DELETE n
}} IN TRANSACTIONS
"#,
",
node_label = node_label
));
});
graph.run(delete_node_query).await?;
}
}
Expand Down