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a4e1e32d02
We now use INT64_MAX and INT64_MIN as the max and min values for dimension_slice ranges. If a dimension_slice has a range_start of INT64_MIN or the range_end is INT64_MAX, we remove the corresponding check constraint on the chunk since it signifies that this end of the range is infinite. Closed ranges now always have INT64_MIN as range_end of first slice and range_end of INT64_MAX for the last slice. Also, points corresponding to INT64_MAX are always put in the same slice as INT64_MAX-1 to avoid problems with the semantics that coordinate < range_end.
85 lines
3.5 KiB
SQL
85 lines
3.5 KiB
SQL
--
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-- This test will create chunks in two dimenisions, time (x) and
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-- space (y), where the time dimension is aligned. The figure below
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-- shows the expected result. The chunk number in the figure
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-- indicates the creation order.
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--
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-- +
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-- +
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-- + +-----+ +-----+
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-- + | 2 | | 3 |
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-- + | +---+-+ |
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-- + +-----+ 5 |6+-----+
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-- + | 1 +---+-+-----+ +---------+
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-- + | | |4| 7 | | 8 |
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-- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
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-- 0 5 10 15 20
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--
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-- Partitioning:
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--
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-- Chunk # | time | space
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-- 1 | 3 | 2
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-- 4 | 1 | 3
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-- 5 | 5 | 3
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--
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CREATE TABLE chunk_test(time integer, temp float8, tag integer, color integer);
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SELECT create_hypertable('chunk_test', 'time', 'tag', 2, chunk_time_interval => 3);
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INSERT INTO chunk_test VALUES (4, 24.3, 1, 1);
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SELECT * FROM _timescaledb_catalog.dimension_slice;
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INSERT INTO chunk_test VALUES (4, 24.3, 2, 1);
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INSERT INTO chunk_test VALUES (10, 24.3, 2, 1);
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SELECT c.table_name AS chunk_name, d.id AS dimension_id, ds.id AS slice_id, range_start, range_end 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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\c single :ROLE_SUPERUSER
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UPDATE _timescaledb_catalog.dimension SET num_slices = 3 WHERE id = 2;
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\c single :ROLE_DEFAULT_PERM_USER
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SELECT set_chunk_time_interval('chunk_test', 1::bigint);
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INSERT INTO chunk_test VALUES (8, 24.3, 11233, 1);
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SELECT set_chunk_time_interval('chunk_test', 5::bigint);
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SELECT * FROM _timescaledb_catalog.dimension;
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INSERT INTO chunk_test VALUES (7, 24.3, 79669, 1);
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INSERT INTO chunk_test VALUES (8, 24.3, 79669, 1);
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INSERT INTO chunk_test VALUES (10, 24.3, 11233, 1);
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INSERT INTO chunk_test VALUES (16, 24.3, 11233, 1);
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SELECT c.table_name AS chunk_name, d.id AS dimension_id, ds.id AS slice_id, range_start, range_end 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 the edges of an open partition -- INT_64_MAX and INT_64_MIN.
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CREATE TABLE chunk_test_ends(time bigint, temp float8, tag integer, color integer);
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SELECT create_hypertable('chunk_test_ends', 'time', chunk_time_interval => 5);
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INSERT INTO chunk_test_ends VALUES ((-9223372036854775808)::bigint, 23.1, 11233, 1);
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INSERT INTO chunk_test_ends VALUES (9223372036854775807::bigint, 24.1, 11233, 1);
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--try to hit cache
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INSERT INTO chunk_test_ends VALUES (9223372036854775807::bigint, 24.2, 11233, 1);
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INSERT INTO chunk_test_ends VALUES (9223372036854775807::bigint, 24.3, 11233, 1), (9223372036854775807::bigint, 24.4, 11233, 1);
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INSERT INTO chunk_test_ends VALUES ((-9223372036854775808)::bigint, 23.2, 11233, 1);
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INSERT INTO chunk_test_ends VALUES ((-9223372036854775808)::bigint, 23.3, 11233, 1), ((-9223372036854775808)::bigint, 23.4, 11233, 1);
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SELECT * FROM chunk_test_ends ORDER BY time asc;
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