-- tests for functions related to TID handling
CREATE TABLE tid_tab (a int);
-- min() and max() for TIDs
INSERT INTO tid_tab VALUES (1), (2);
SELECT min(ctid) FROM tid_tab;
  min  
-------
 (0,1)
(1 row)

SELECT max(ctid) FROM tid_tab;
  max  
-------
 (0,2)
(1 row)

TRUNCATE tid_tab;
-- Tests for currtid2() with various relation kinds
-- Materialized view
CREATE MATERIALIZED VIEW tid_matview AS SELECT a FROM tid_tab;
SELECT currtid2('tid_matview'::text, '(0,1)'::tid); -- fails
ERROR:  tid (0, 1) is not valid for relation "tid_matview"
INSERT INTO tid_tab VALUES (1);
REFRESH MATERIALIZED VIEW tid_matview;
SELECT currtid2('tid_matview'::text, '(0,1)'::tid); -- ok
 currtid2 
----------
 (0,1)
(1 row)

DROP MATERIALIZED VIEW tid_matview;
TRUNCATE tid_tab;
-- Sequence
CREATE SEQUENCE tid_seq;
SELECT currtid2('tid_seq'::text, '(0,1)'::tid); -- ok
 currtid2 
----------
 (0,1)
(1 row)

DROP SEQUENCE tid_seq;
-- Index, fails with incorrect relation type
CREATE INDEX tid_ind ON tid_tab(a);
SELECT currtid2('tid_ind'::text, '(0,1)'::tid); -- fails
ERROR:  "tid_ind" is an index
DROP INDEX tid_ind;
-- Partitioned table, no storage
CREATE TABLE tid_part (a int) PARTITION BY RANGE (a);
SELECT currtid2('tid_part'::text, '(0,1)'::tid); -- fails
ERROR:  cannot look at latest visible tid for relation "public.tid_part"
DROP TABLE tid_part;
-- Views
-- ctid not defined in the view
CREATE VIEW tid_view_no_ctid AS SELECT a FROM tid_tab;
SELECT currtid2('tid_view_no_ctid'::text, '(0,1)'::tid); -- fails
ERROR:  currtid cannot handle views with no CTID
DROP VIEW tid_view_no_ctid;
-- ctid fetched directly from the source table.
CREATE VIEW tid_view_with_ctid AS SELECT ctid, a FROM tid_tab;
SELECT currtid2('tid_view_with_ctid'::text, '(0,1)'::tid); -- fails
ERROR:  tid (0, 1) is not valid for relation "tid_tab"
INSERT INTO tid_tab VALUES (1);
SELECT currtid2('tid_view_with_ctid'::text, '(0,1)'::tid); -- ok
 currtid2 
----------
 (0,1)
(1 row)

DROP VIEW tid_view_with_ctid;
TRUNCATE tid_tab;
-- ctid attribute with incorrect data type
CREATE VIEW tid_view_fake_ctid AS SELECT 1 AS ctid, 2 AS a;
SELECT currtid2('tid_view_fake_ctid'::text, '(0,1)'::tid); -- fails
ERROR:  ctid isn't of type TID
DROP VIEW tid_view_fake_ctid;
DROP TABLE tid_tab CASCADE;