pgml.train does not properly escape relation_name #1326
Description
It appears pgml.train does not properly escape the relation_name.
Relations can start with numbers and contain all kinds of crazy characters. Postgres allows these relations by using the syntax "schema"."relation_name" to escape such as:
postgres=# select count(*) from "public"."08e56f36-7c89-4eea-9b17-0ab9785e6b2b_pgml";
count
-------
10000
(1 row)However, pgml.trian fails to find the relation when escaping the relation_name as follows:
postgres=# SELECT * FROM pgml.train('my_project', 'classification', '"public"."08e56f36-7c89-4eea-9b17-0ab9785e6b2b_pgml"', 'failure', 'xgboost');
INFO: Snapshotting table ""public"."08e56f36-7c89-4eea-9b17-0ab9785e6b2b_pgml"", this may take a little while...
ERROR: Relation ""public"".""08e56f36-7c89-4eea-9b17-0ab9785e6b2b_pgml"" doesn't exist (snapshot.rs:747)Or if you prefer without quotes:
postgres=# SELECT * FROM pgml.train('my_project', 'classification', 'public.08e56f36-7c89-4eea-9b17-0ab9785e6b2b_pgml', 'failure', 'xgboost');
INFO: Snapshotting table "public.08e56f36-7c89-4eea-9b17-0ab9785e6b2b_pgml", this may take a little while...
ERROR: syntax error at or near ".08e56"
LINE 1: ... "tool_wear_time", "torque", "failure" FROM public.08e56f36-...
^
QUERY: SELECT "process_temp", "tool_wear_time", "torque", "failure" FROM public.08e56f36-7c89-4eea-9b17-0ab9785e6b2b_pgml