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Fix entity and relationship deletion when no chunk references remain

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(cherry picked from commit c81a56a113)
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yangdx 2025-10-28 16:02:35 +08:00 • committed by Raphaël MANSUY
parent 17a9771cfb
commit 8f16f6fe31
1 changed files with 7 additions and 0 deletions
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7
lightrag/lightrag.py
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@ -2989,6 +2989,9 @@ class LightRAG:
]
if not existing_sources:
# No chunk references means this entity should be deleted
entities_to_delete.add(node_label)
entity_chunk_updates[node_label] = []
continue
remaining_sources = subtract_source_ids(existing_sources, chunk_ids)
@ -3010,6 +3013,7 @@ class LightRAG:
# Process relationships
for edge_data in affected_edges:
# source target is not in normalize order in graph db property
src = edge_data.get("source")
tgt = edge_data.get("target")
@ -3046,6 +3050,9 @@ class LightRAG:
]
if not existing_sources:
# No chunk references means this relationship should be deleted
relationships_to_delete.add(edge_tuple)
relation_chunk_updates[edge_tuple] = []
continue
remaining_sources = subtract_source_ids(existing_sources, chunk_ids)