On Wed, Jun 5, 2013 at 6:01 AM, Mike Summers <msummer...@gmail.com> wrote:
> From what I'm reading the View is frozen when it's created, including it's
> plan, and the usual solution is to use a set returning function... is this
> not true?
No it is not. Here:
smarlowe=# create table a (id int);
CREATE TABLE
smarlowe=# create index a_id on a(id);
CREATE INDEX
smarlowe=# insert into a values (1),(2),(3);
INSERT 0 3
smarlowe=# create view x as select * from a;
CREATE VIEW
smarlowe=# analyze a;
ANALYZE
smarlowe=# show enable_seqscan;
enable_seqscan
----------------
on
(1 row)
smarlowe=# explain select * from x where id=1;
QUERY PLAN
-------------------------------------------------
Seq Scan on a (cost=0.00..1.04 rows=1 width=4)
Filter: (id = 1)
(2 rows)
smarlowe=# set enable_seqscan =off;
SET
smarlowe=# explain select * from x where id=1;
QUERY PLAN
--------------------------------------------------------------
Index Scan using a_id on a (cost=0.00..8.27 rows=1 width=4)
Index Cond: (id = 1)
(2 rows)
smarlowe=#
> I've double checked all schemas and the view is only defined once.
Well you're gonna have to come up with some kind of self-contained
test to show what's happening then.
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