Improved performance by checking has_canonical_format [skip ci]

Author: ankane

pgvector/sparsevec.py

@@ -119,10 +119,14 @@ def _from_sparse(self, arr: sparray | spmatrix, /) -> None:
         else:
             indices = value.col.tolist()
 
-        elements = sorted(zip(indices, value.data))
-
-        self._indices = [v[0] for v in elements]
-        self._values = [float(v[1]) for v in elements]
+        # spipy 1.12+
+        if hasattr(value, 'has_canonical_format') and value.has_canonical_format:
+            self._indices = indices
+            self._values = [float(v) for v in value.data]
+        else:
+            elements = sorted(zip(indices, value.data))
+            self._indices = [v[0] for v in elements]
+            self._values = [float(v[1]) for v in elements]
 
     def _from_dense(self, value: list[float] | ndarray, /) -> None:
         self._dim = len(value)