8000 fix: allow similarity search on table names with special characters by jackwotherspoon · Pull Request #65 · googleapis/langchain-google-cloud-sql-mysql-python · GitHub
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fix: allow similarity search on table names with special characters #65

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merged 1 commit into from
Apr 15, 2024
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fix: allow similarity search on table names with special characters #65

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4 changes: 2 additions & 2 deletions src/langchain_google_cloud_sql_mysql/vectorstore.py
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Original file line number Diff line number Diff line change
Expand Up @@ -675,15 +675,15 @@ def _query_collection(
)
if query_options.search_type == SearchType.KNN:
filter = f"WHERE {filter}" if filter else ""
stmt = f"SELECT {column_query}, {distance_function}({self.embedding_column}, string_to_vector('{embedding}')) AS distance FROM {self.table_name} {filter} ORDER BY distance LIMIT {k};"
stmt = f"SELECT {column_query}, {distance_function}({self.embedding_column}, string_to_vector('{embedding}')) AS distance FROM `{self.table_name}` {filter} ORDER BY distance LIMIT {k};"
else:
filter = f"AND {filter}" if filter else ""
num_partitions = (
f",num_partitions={query_options.num_partitions}"
if query_options.num_partitions
else ""
)
stmt = f"SELECT {column_query}, {distance_function}({self.embedding_column}, string_to_vector('{embedding}')) AS distance FROM {self.table_name} WHERE NEAREST({self.embedding_column}) TO (string_to_vector('{embedding}'), 'num_neighbors={k}{num_partitions}') {filter} ORDER BY distance;"
stmt = f"SELECT {column_query}, {distance_function}({self.embedding_column}, string_to_vector('{embedding}')) AS distance FROM `{self.table_name}` WHERE NEAREST({self.embedding_column}) TO (string_to_vector('{embedding}'), 'num_neighbors={k}{num_partitions}') {filter} ORDER BY distance;"

# return self.engine._fetch(stmt)
if map_results:
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0