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https://github.com/timescale/timescaledb.git
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70ede45083
It is not an error for range_end of a new chunk to be equal to range_start of an existing chunk because range_end is exclusive. Fix logic not to throw an error in that case.
82 lines
3.6 KiB
SQL
82 lines
3.6 KiB
SQL
\ir include/create_single_db.sql
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CREATE TABLE chunk_test(
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time BIGINT,
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metric INTEGER,
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device_id TEXT
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);
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-- Test chunk closing/creation
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SELECT * FROM create_hypertable('chunk_test', 'time', 'device_id', 2, chunk_time_interval => 10);
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SELECT * FROM _timescaledb_catalog.hypertable;
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INSERT INTO chunk_test VALUES (1, 1, 'dev1'),
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(2, 2, 'dev2'),
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(45, 2, 'dev2'),
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(46, 2, 'dev2');
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SELECT * FROM set_chunk_time_interval('chunk_test', 40::bigint);
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INSERT INTO chunk_test VALUES(23, 3, 'dev3');
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SELECT * FROM chunk_test order by time, metric, device_id;
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SELECT * FROM _timescaledb_catalog.chunk;
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SELECT * FROM _timescaledb_catalog.hypertable;
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SELECT * FROM ONLY chunk_test;
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SELECT * FROM _timescaledb_catalog.chunk c
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LEFT JOIN _timescaledb_catalog.chunk_constraint cc ON (c.id = cc.chunk_id)
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LEFT JOIN _timescaledb_catalog.dimension_slice ds ON (ds.id = cc.dimension_slice_id)
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LEFT JOIN _timescaledb_catalog.dimension d ON (d.id = ds.dimension_id)
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LEFT JOIN _timescaledb_catalog.hypertable h ON (d.hypertable_id = h.id)
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WHERE h.schema_name = 'public' AND h.table_name = 'chunk_test'
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ORDER BY c.id, d.id;
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-- Test chunk aligning between partitions
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CREATE TABLE chunk_align_test(
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time BIGINT,
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metric INTEGER,
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device_id TEXT
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);
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SELECT * FROM create_hypertable('chunk_align_test', 'time', 'device_id', 2, chunk_time_interval => 10);
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INSERT INTO chunk_align_test VALUES (1, 1, 'dev1'); -- this should create a 10 wide chunk
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SELECT * FROM _timescaledb_catalog.chunk c
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LEFT JOIN _timescaledb_catalog.chunk_constraint cc ON (c.id = cc.chunk_id)
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LEFT JOIN _timescaledb_catalog.dimension_slice ds ON (ds.id = cc.dimension_slice_id)
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LEFT JOIN _timescaledb_catalog.dimension d ON (d.id = ds.dimension_id)
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LEFT JOIN _timescaledb_catalog.hypertable h ON (d.hypertable_id = h.id)
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WHERE h.schema_name = 'public' AND h.table_name = 'chunk_align_test'
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AND d.column_name = 'time'
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ORDER BY c.id, d.id;
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SELECT * FROM set_chunk_time_interval('chunk_align_test', 40::bigint);
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INSERT INTO chunk_align_test VALUES (5, 1, 'dev2'); -- this should still create a 10 wide chunk
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INSERT INTO chunk_align_test VALUES (45, 1, 'dev2'); -- this should create a 40 wide chunk
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SELECT * FROM _timescaledb_catalog.chunk c
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LEFT JOIN _timescaledb_catalog.chunk_constraint cc ON (c.id = cc.chunk_id)
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LEFT JOIN _timescaledb_catalog.dimension_slice ds ON (ds.id = cc.dimension_slice_id)
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LEFT JOIN _timescaledb_catalog.dimension d ON (d.id = ds.dimension_id)
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LEFT JOIN _timescaledb_catalog.hypertable h ON (d.hypertable_id = h.id)
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WHERE h.schema_name = 'public' AND h.table_name = 'chunk_align_test'
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AND d.column_name = 'time'
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ORDER BY c.id, d.id;
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--check the cut-to-size with aligned dimensions code
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INSERT INTO chunk_align_test VALUES (35, 1, 'dev1');
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INSERT INTO chunk_align_test VALUES (35, 1, 'dev2');
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INSERT INTO chunk_align_test VALUES (81, 1, 'dev1');
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INSERT INTO chunk_align_test VALUES (81, 1, 'dev2');
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SELECT * FROM _timescaledb_catalog.chunk c
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LEFT JOIN _timescaledb_catalog.chunk_constraint cc ON (c.id = cc.chunk_id)
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LEFT JOIN _timescaledb_catalog.dimension_slice ds ON (ds.id = cc.dimension_slice_id)
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LEFT JOIN _timescaledb_catalog.dimension d ON (d.id = ds.dimension_id)
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LEFT JOIN _timescaledb_catalog.hypertable h ON (d.hypertable_id = h.id)
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WHERE h.schema_name = 'public' AND h.table_name = 'chunk_align_test'
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AND d.column_name = 'time'
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ORDER BY c.id, d.id;
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