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https://github.com/timescale/timescaledb.git
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a218532941
Enforce index scan for queries that would produce different output between 32bit and 64bit platform to make explain output for constraint_exclusion_prepared, ordered_append and ordered_append_join test output consistent across platforms.
298 lines
4.9 KiB
SQL
298 lines
4.9 KiB
SQL
-- This file and its contents are licensed under the Timescale License.
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-- Please see the included NOTICE for copyright information and
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-- LICENSE-TIMESCALE for a copy of the license.
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-- test ASC for ordered chunks
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:PREFIX
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SELECT time
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FROM :TEST_TABLE
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ORDER BY time ASC
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LIMIT 1;
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-- test DESC for ordered chunks
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:PREFIX
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SELECT time
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FROM :TEST_TABLE
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ORDER BY time DESC
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LIMIT 1;
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-- test query with ORDER BY column not in targetlist
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:PREFIX
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SELECT pg_typeof(device_id),
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pg_typeof(v2)
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FROM :TEST_TABLE
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ORDER BY time ASC
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LIMIT 1;
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-- ORDER BY may include other columns after time column
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:PREFIX
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SELECT time,
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device_id,
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v0
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FROM :TEST_TABLE
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WHERE device_id = 1
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ORDER BY time DESC,
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device_id
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LIMIT 1;
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-- test RECORD in targetlist
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:PREFIX
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SELECT (time,
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device_id,
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v0)
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FROM :TEST_TABLE
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WHERE device_id = 1
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ORDER BY time DESC,
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device_id
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LIMIT 1;
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-- test sort column not in targetlist
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:PREFIX
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SELECT time_bucket('1h', time)
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FROM :TEST_TABLE
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ORDER BY time DESC
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LIMIT 1;
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-- queries with ORDER BY non-time column shouldn't use ordered append
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:PREFIX
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SELECT device_id
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FROM :TEST_TABLE
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ORDER BY device_id
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LIMIT 1;
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-- time column must be primary sort order
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:PREFIX
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SELECT time,
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device_id
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FROM :TEST_TABLE
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WHERE device_id IN (1, 2)
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ORDER BY device_id,
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time
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LIMIT 1;
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-- test equality constraint on ORDER BY prefix
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-- currently not optimized
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SET enable_seqscan TO false;
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:PREFIX
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SELECT time,
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device_id
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FROM :TEST_TABLE
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WHERE device_id = 1
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ORDER BY device_id,
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time
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LIMIT 10;
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RESET enable_seqscan;
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-- queries without LIMIT should use ordered append
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:PREFIX
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SELECT time
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FROM :TEST_TABLE
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WHERE device_id IN (1, 2)
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ORDER BY time ASC;
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-- queries without ORDER BY shouldnt use ordered append
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:PREFIX
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SELECT pg_typeof(time)
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FROM :TEST_TABLE
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LIMIT 1;
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-- test interaction with constraint exclusion
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:PREFIX
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SELECT time
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FROM :TEST_TABLE
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WHERE time > '2000-01-07'
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ORDER BY time ASC
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LIMIT 1;
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:PREFIX
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SELECT time
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FROM :TEST_TABLE
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WHERE time > '2000-01-07'
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ORDER BY time DESC
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LIMIT 1;
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-- test interaction with runtime exclusion
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:PREFIX
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SELECT time
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FROM :TEST_TABLE
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WHERE time > '2000-01-08'::text::timestamptz
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ORDER BY time ASC
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LIMIT 1;
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:PREFIX
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SELECT time
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FROM :TEST_TABLE
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WHERE time < '2000-01-08'::text::timestamptz
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ORDER BY time ASC
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LIMIT 1;
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-- test constraint exclusion
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:PREFIX
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SELECT time
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FROM :TEST_TABLE
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WHERE time > '2000-01-08'::text::timestamptz
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AND time < '2000-01-10'
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ORDER BY time ASC
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LIMIT 1;
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:PREFIX
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SELECT time
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FROM :TEST_TABLE
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WHERE time < '2000-01-08'::text::timestamptz
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AND time > '2000-01-07'
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ORDER BY time ASC
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LIMIT 1;
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-- min/max queries
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:PREFIX
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SELECT max(time)
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FROM :TEST_TABLE;
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:PREFIX
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SELECT min(time)
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FROM :TEST_TABLE;
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-- test first/last (doesn't use ordered append yet)
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:PREFIX
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SELECT first(time, time)
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FROM :TEST_TABLE;
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:PREFIX
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SELECT last(time, time)
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FROM :TEST_TABLE;
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-- test query with time_bucket
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:PREFIX
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SELECT time_bucket('1d', time)
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FROM :TEST_TABLE
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ORDER BY time ASC
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LIMIT 1;
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-- test query with ORDER BY time_bucket
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:PREFIX
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SELECT time_bucket('1d', time)
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FROM :TEST_TABLE
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ORDER BY 1
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LIMIT 1;
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-- test query with ORDER BY time_bucket, device_id
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-- must not use ordered append
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:PREFIX
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SELECT time_bucket('1d', time),
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device_id,
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v0
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FROM :TEST_TABLE
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WHERE device_id IN (1, 2)
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ORDER BY time_bucket('1d', time),
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device_id
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LIMIT 1;
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-- test query with ORDER BY date_trunc
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:PREFIX
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SELECT time_bucket('1d', time)
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FROM :TEST_TABLE
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ORDER BY date_trunc('day', time)
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LIMIT 1;
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-- test query with ORDER BY date_trunc
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:PREFIX
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SELECT date_trunc('day', time)
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FROM :TEST_TABLE
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ORDER BY 1
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LIMIT 1;
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-- test query with ORDER BY date_trunc, device_id
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-- must not use ordered append
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:PREFIX
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SELECT date_trunc('day', time),
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device_id,
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v0
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FROM :TEST_TABLE
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WHERE device_id IN (1, 2)
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ORDER BY 1,
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2
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LIMIT 1;
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-- test query with now() should result in ordered ChunkAppend
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:PREFIX
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SELECT time
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FROM :TEST_TABLE
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WHERE time < now() + '1 month'
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ORDER BY time DESC
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LIMIT 1;
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-- test CTE
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:PREFIX WITH i AS (
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SELECT time
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FROM :TEST_TABLE
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WHERE time < now()
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ORDER BY time DESC
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LIMIT 100
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)
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SELECT *
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FROM i;
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-- test CTE
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-- no chunk exclusion for CTE because cte query is not pulled up
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:PREFIX WITH cte AS (
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SELECT time
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FROM :TEST_TABLE
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WHERE device_id = 1
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ORDER BY time
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)
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SELECT *
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FROM cte
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WHERE time < '2000-02-01'::timestamptz;
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-- test subquery
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-- not ChunkAppend so no chunk exclusion
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:PREFIX
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SELECT time
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FROM :TEST_TABLE
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WHERE time = (
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SELECT max(time)
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FROM :TEST_TABLE)
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ORDER BY time;
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-- test ordered append with limit expression
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:PREFIX
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SELECT time
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FROM :TEST_TABLE
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ORDER BY time
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LIMIT (
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SELECT length('four'));
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-- test with ordered guc disabled
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SET timescaledb.enable_ordered_append TO OFF;
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:PREFIX
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SELECT time
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FROM :TEST_TABLE
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ORDER BY time
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LIMIT 3;
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RESET timescaledb.enable_ordered_append;
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:PREFIX
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SELECT time
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FROM :TEST_TABLE
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ORDER BY time
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LIMIT 3;
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-- test with chunk append disabled
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SET timescaledb.enable_chunk_append TO OFF;
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:PREFIX
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SELECT time
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FROM :TEST_TABLE
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ORDER BY time
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LIMIT 3;
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RESET timescaledb.enable_chunk_append;
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:PREFIX
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SELECT time
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FROM :TEST_TABLE
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ORDER BY time
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LIMIT 3;
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