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3e5e0de164
1. This commit introduces changes to existing plans due to the addition of new chunks to metrics_ordered_idx. 2. Add tests for constraint aware appends on compressed tables.
49 lines
2.0 KiB
SQL
49 lines
2.0 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 for constraint aware append ------------
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--should select only newly added chunk --
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set timescaledb.enable_chunk_append to false;
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:PREFIX select * from ( SELECT * FROM metrics_ordered_idx where time > '2002-01-01' and time < now() ORDER BY time DESC LIMIT 10 ) as q order by 1,2,3,4;
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-- DecompressChunk path because segmentby columns have equality constraints
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:PREFIX select * from (SELECT * FROM metrics_ordered_idx WHERE device_id = 4 AND device_id_peer = 5 and time > '2002-01-01' and time < now() ORDER BY time DESC LIMIT 10) as q order by 1, 2, 3, 4;
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:PREFIX SELECT m.device_id, d.v0, count(*)
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FROM metrics_ordered_idx d , metrics_ordered_idx m
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WHERE m.device_id = d.device_id AND m.device_id_peer = 5
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and m.time = d.time and m.time > '2002-01-01' and m.time < now()
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AND m.device_id_peer = d.device_id_peer
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group by m.device_id, d.v0 order by 1,2 ,3;
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--query with no results --
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:PREFIX SELECT m.device_id, d.v0, count(*)
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FROM metrics_ordered_idx d , metrics_ordered_idx m
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WHERE m.time = d.time and m.time > now()
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group by m.device_id, d.v0 order by 1,2 ,3;
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--query with all chunks but 1 excluded at plan time --
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:PREFIX SELECT d.*, m.*
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FROM device_tbl d, metrics_ordered_idx m
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WHERE m.device_id = d.device_id
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and m.time > '2019-01-01' and m.time < now()
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order by m.v0;
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-- no matches in metrics_ordered_idx but one row in device_tbl
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:PREFIX SELECT d.*, m.*
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FROM device_tbl d LEFT OUTER JOIN metrics_ordered_idx m
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ON m.device_id = d.device_id and m.time > '2019-01-01' and m.time < now()
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WHERE d.device_id = 8
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order by m.v0;
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-- no matches in device_tbl but 1 row in metrics_ordered_idx
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:PREFIX SELECT d.*, m.*
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FROM device_tbl d FULL OUTER JOIN metrics_ordered_idx m
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ON m.device_id = d.device_id and m.time > '2019-01-01' and m.time < now()
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WHERE m.device_id = 7
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order by m.v0;
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set timescaledb.enable_chunk_append to true;
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