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https://github.com/timescale/timescaledb.git
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40ce03760a
Discovered a crash when doing an explain analyze on a cte containing an insert that did not reference the cte in the select statement. This fixes by copying the eref from the parent hypertable to the chunk so that columns can be described. It will only copy the eref from the hypertable if there is a range table entry available. Also modify copy so it actually sets a dummy variable as the RTE index rather than 1, which is a valid RTE index, even if there is no RTE for the hypertable.
93 lines
3.6 KiB
SQL
93 lines
3.6 KiB
SQL
\ir include/insert_two_partitions.sql
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SELECT * FROM test.show_columnsp('_timescaledb_internal.%');
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SELECT * FROM test.show_indexesp('_timescaledb_internal.%');
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SELECT * FROM _timescaledb_catalog.chunk;
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SELECT * FROM "two_Partitions" ORDER BY "timeCustom", device_id;
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SELECT * FROM ONLY "two_Partitions";
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CREATE TABLE error_test(time timestamp, temp float8, device text NOT NULL);
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SELECT create_hypertable('error_test', 'time', 'device', 2);
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\set QUIET off
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INSERT INTO error_test VALUES ('Mon Mar 20 09:18:20.1 2017', 21.3, 'dev1');
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\set ON_ERROR_STOP 0
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-- generate insert error
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INSERT INTO error_test VALUES ('Mon Mar 20 09:18:22.3 2017', 21.1, NULL);
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\set ON_ERROR_STOP 1
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INSERT INTO error_test VALUES ('Mon Mar 20 09:18:25.7 2017', 22.4, 'dev2');
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\set QUIET on
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SELECT * FROM error_test;
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--test character(9) partition keys since there were issues with padding causing partitioning errors
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CREATE TABLE tick_character (
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symbol character(9) NOT NULL,
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mid REAL NOT NULL,
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spread REAL NOT NULL,
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time TIMESTAMPTZ NOT NULL
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);
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SELECT create_hypertable ('tick_character', 'time', 'symbol', 2);
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INSERT INTO tick_character ( symbol, mid, spread, time ) VALUES ( 'GBPJPY', 142.639000, 5.80, 'Mon Mar 20 09:18:22.3 2017') RETURNING time, symbol, mid;
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SELECT * FROM tick_character;
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CREATE TABLE many_partitions_test(time timestamp, temp float8, device text NOT NULL);
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SELECT create_hypertable('many_partitions_test', 'time', 'device', 1000);
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--NOTE: how much slower the first two queries are -- they are creating chunks
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INSERT INTO many_partitions_test
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SELECT to_timestamp(ser), ser, ser::text FROM generate_series(1,100) ser;
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INSERT INTO many_partitions_test
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SELECT to_timestamp(ser), ser, ser::text FROM generate_series(101,200) ser;
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INSERT INTO many_partitions_test
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SELECT to_timestamp(ser), ser, (ser-201)::text FROM generate_series(201,300) ser;
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SELECT * FROM many_partitions_test ORDER BY time DESC LIMIT 2;
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SELECT count(*) FROM many_partitions_test;
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CREATE TABLE date_col_test(time date, temp float8, device text NOT NULL);
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SELECT create_hypertable('date_col_test', 'time', 'device', 1000, chunk_time_interval => INTERVAL '1 Day');
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INSERT INTO date_col_test
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VALUES ('2001-02-01', 98, 'dev1'),
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('2001-03-02', 98, 'dev1');
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SELECT * FROM date_col_test WHERE time > '2001-01-01';
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CREATE TABLE many_partitions_test_1m (time timestamp, temp float8, device text NOT NULL);
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SELECT create_hypertable('many_partitions_test_1m', 'time', 'device', 1000);
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EXPLAIN (verbose on, costs off)
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INSERT INTO many_partitions_test_1m(time, temp, device)
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SELECT time_bucket('1 minute', time) AS period, avg(temp), device
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FROM many_partitions_test
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GROUP BY period, device;
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INSERT INTO many_partitions_test_1m(time, temp, device)
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SELECT time_bucket('1 minute', time) AS period, avg(temp), device
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FROM many_partitions_test
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GROUP BY period, device;
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SELECT * FROM many_partitions_test_1m ORDER BY time, device LIMIT 10;
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CREATE TABLE one_space_test(time timestamp, temp float8, device text NOT NULL);
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SELECT create_hypertable('one_space_test', 'time', 'device', 1);
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INSERT INTO one_space_test VALUES
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('2001-01-01 01:01:01', 1.0, 'device'),
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('2002-01-01 01:02:01', 1.0, 'device');
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SELECT * FROM one_space_test;
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--CTE & EXPLAIN ANALYZE TESTS
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WITH insert_cte as (
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INSERT INTO one_space_test VALUES
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('2001-01-01 01:02:01', 1.0, 'device')
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RETURNING *)
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SELECT * FROM insert_cte;
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EXPLAIN (analyze, costs off, timing off) --can't turn summary off in 9.6 so instead grep it away at end.
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WITH insert_cte as (
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INSERT INTO one_space_test VALUES
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('2001-01-01 01:03:01', 1.0, 'device')
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)
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SELECT 1 \g | grep -v "Planning" | grep -v "Execution"
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