Restore 0.1.5 version from stash

wolai-backend/.venv312/Lib/site-packages/pgvector/django/indexes.py

@@ -0,0 +1,46 @@
+from django.contrib.postgres.indexes import PostgresIndex
+
+
+class IvfflatIndex(PostgresIndex):
+    suffix = 'ivfflat'
+
+    def __init__(self, *expressions, lists=None, **kwargs):
+        self.lists = lists
+        super().__init__(*expressions, **kwargs)
+
+    def deconstruct(self):
+        path, args, kwargs = super().deconstruct()
+        if self.lists is not None:
+            kwargs['lists'] = self.lists
+        return path, args, kwargs
+
+    def get_with_params(self):
+        with_params = []
+        if self.lists is not None:
+            with_params.append('lists = %d' % self.lists)
+        return with_params
+
+
+class HnswIndex(PostgresIndex):
+    suffix = 'hnsw'
+
+    def __init__(self, *expressions, m=None, ef_construction=None, **kwargs):
+        self.m = m
+        self.ef_construction = ef_construction
+        super().__init__(*expressions, **kwargs)
+
+    def deconstruct(self):
+        path, args, kwargs = super().deconstruct()
+        if self.m is not None:
+            kwargs['m'] = self.m
+        if self.ef_construction is not None:
+            kwargs['ef_construction'] = self.ef_construction
+        return path, args, kwargs
+
+    def get_with_params(self):
+        with_params = []
+        if self.m is not None:
+            with_params.append('m = %d' % self.m)
+        if self.ef_construction is not None:
+            with_params.append('ef_construction = %d' % self.ef_construction)
+        return with_params