Add id index to the work queue table

Needed to efficiently delete ids during processing.

Author: cevian

nbs/01_pgvectorizer.ipynb

@@ -87,6 +87,8 @@
     "                        id int\n",
     "                    );\n",
     "\n",
+    "                    CREATE INDEX ON {self.schema_name}.{self.work_queue_table_name}(id);\n",
+    "\n",
     "                    CREATE OR REPLACE FUNCTION {self.schema_name}.{self.trigger_name_fn}() RETURNS TRIGGER LANGUAGE PLPGSQL AS $$ \n",
     "                    BEGIN \n",
     "                        IF (TG_OP = 'DELETE') THEN\n",

timescale_vector/pgvectorizer.py

@@ -60,6 +60,8 @@ def register(self):
                         id int
                     );
 
+                    CREATE INDEX ON {self.schema_name}.{self.work_queue_table_name}(id);
+
                     CREATE OR REPLACE FUNCTION {self.schema_name}.{self.trigger_name_fn}() RETURNS TRIGGER LANGUAGE PLPGSQL AS $$ 
                     BEGIN 
                         IF (TG_OP = 'DELETE') THEN