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community[patch]: Ignore null and invalid embedding values for neo4j metadata filtering (#20558)

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Tomaz Bratanic 2024-04-18 22:15:45 +02:00 committed by GitHub
parent 718c9cbe3a
commit 27370b679e
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1 changed files with 11 additions and 2 deletions
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13
libs/community/langchain_community/vectorstores/neo4j_vector.py
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@ -956,8 +956,17 @@ class Neo4jVector(VectorStore):
"Metadata filtering can't be use in combination with " "Metadata filtering can't be use in combination with "
"a hybrid search approach" "a hybrid search approach"
) )
parallel_query = "CYPHER runtime = parallel " if self._is_enterprise else "" parallel_query = (
base_index_query = parallel_query + f"MATCH (n:`{self.node_label}`) WHERE " "CYPHER runtime = parallel parallelRuntimeSupport=all "
if self._is_enterprise
else ""
)
base_index_query = parallel_query + (
f"MATCH (n:`{self.node_label}`) WHERE "
f"n.`{self.embedding_node_property}` IS NOT NULL AND "
f"size(n.`{self.embedding_node_property}`) = "
f"toInteger({self.embedding_dimension}) AND "
)
base_cosine_query = ( base_cosine_query = (
" WITH n as node, vector.similarity.cosine(" " WITH n as node, vector.similarity.cosine("
f"n.`{self.embedding_node_property}`, " f"n.`{self.embedding_node_property}`, "