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https://github.com/timescale/timescaledb.git
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70fd8df015
Add license information to files missing it and fix the license check script to honor the return code of both the apache license check and the TSL license check. Previously errors occurring during apache license check would not be reflected in the return code of the script, so only the TSL license check was effective.
59 lines
2.3 KiB
Plaintext
59 lines
2.3 KiB
Plaintext
-- This file and its contents are licensed under the Apache License 2.0.
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-- Please see the included NOTICE for copyright information and
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-- LICENSE-APACHE for a copy of the license.
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CREATE TABLE cursor_test(time timestamptz, device_id int, temp float);
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SELECT create_hypertable('cursor_test','time');
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NOTICE: adding not-null constraint to column "time"
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create_hypertable
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--------------------------
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(1,public,cursor_test,t)
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(1 row)
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INSERT INTO cursor_test SELECT '2000-01-01',1,0.5;
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INSERT INTO cursor_test SELECT '2001-01-01',1,0.5;
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INSERT INTO cursor_test SELECT '2002-01-01',1,0.5;
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\set ON_ERROR_STOP 0
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BEGIN;
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DECLARE c1 SCROLL CURSOR FOR SELECT * FROM cursor_test;
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FETCH NEXT FROM c1;
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time | device_id | temp
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------------------------------+-----------+------
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Sat Jan 01 00:00:00 2000 PST | 1 | 0.5
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(1 row)
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-- this will produce an error because PostgreSQL checks
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-- for the existence of a scan node with the relation id for every relation
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-- used in the update plan in the plan of the cursor.
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--
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-- constraint exclusion will make this easier to hit
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-- because constraint exclusion only works for SELECT
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-- and UPDATE statements will still have parent tables in
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-- the generated plans
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UPDATE cursor_test SET temp = 0.7 WHERE CURRENT OF c1;
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ERROR: cursor "c1" is not a simply updatable scan of table "cursor_test"
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COMMIT;
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-- test cursor with no chunks left after runtime exclusion
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BEGIN;
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DECLARE c1 SCROLL CURSOR FOR SELECT * FROM cursor_test WHERE time > now();
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UPDATE cursor_test SET temp = 0.7 WHERE CURRENT OF c1;
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ERROR: cursor "c1" is not a simply updatable scan of table "cursor_test"
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COMMIT;
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-- test cursor with no chunks left after planning exclusion
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BEGIN;
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DECLARE c1 SCROLL CURSOR FOR SELECT * FROM cursor_test WHERE time > '2010-01-01';
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UPDATE cursor_test SET temp = 0.7 WHERE CURRENT OF c1;
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ERROR: cursor "c1" is not a simply updatable scan of table "cursor_test"
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COMMIT;
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\set ON_ERROR_STOP 1
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SET timescaledb.enable_constraint_exclusion TO off;
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BEGIN;
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DECLARE c1 SCROLL CURSOR FOR SELECT * FROM cursor_test;
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FETCH NEXT FROM c1;
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time | device_id | temp
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------------------------------+-----------+------
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Sat Jan 01 00:00:00 2000 PST | 1 | 0.5
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(1 row)
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UPDATE cursor_test SET temp = 0.7 WHERE CURRENT OF c1;
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COMMIT;
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