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d070514f2a
To allow better caching and reduce the need for locking, chunks now have fixed start and stop times set when the chunk is created.
69 lines
3.7 KiB
SQL
69 lines
3.7 KiB
SQL
\o /dev/null
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\ir include/create_single_db.sql
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\o
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CREATE TABLE PUBLIC.drop_chunk_test1(time bigint, temp float8, device_id text);
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CREATE TABLE PUBLIC.drop_chunk_test2(time bigint, temp float8, device_id text);
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SELECT create_hypertable('public.drop_chunk_test1', 'time', chunk_time_interval => 1);
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SELECT create_hypertable('public.drop_chunk_test2', 'time', chunk_time_interval => 1);
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SELECT c.id AS chunk_id, pr.partition_id, pr.hypertable_id, crn.schema_name AS chunk_schema, crn.table_name AS chunk_table, c.start_time, c.end_time
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FROM _timescaledb_catalog.chunk c
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INNER JOIN _timescaledb_catalog.chunk_replica_node crn ON (c.id = crn.chunk_id)
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INNER JOIN _timescaledb_catalog.partition_replica pr ON (pr.id = crn.partition_replica_id)
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INNER JOIN _timescaledb_catalog.hypertable h ON (h.id = pr.hypertable_id)
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WHERE h.schema_name = 'public' AND (h.table_name = 'drop_chunk_test1' OR h.table_name = 'drop_chunk_test2');
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\dt "_timescaledb_internal".*
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SELECT _timescaledb_catalog.get_partition_for_key('dev1', 32768);
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SELECT _timescaledb_catalog.get_partition_for_key('dev7', 32768);
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INSERT INTO PUBLIC.drop_chunk_test1 VALUES(1, 1.0, 'dev1');
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INSERT INTO PUBLIC.drop_chunk_test1 VALUES(2, 2.0, 'dev1');
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INSERT INTO PUBLIC.drop_chunk_test1 VALUES(3, 3.0, 'dev1');
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INSERT INTO PUBLIC.drop_chunk_test1 VALUES(4, 4.0, 'dev7');
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INSERT INTO PUBLIC.drop_chunk_test1 VALUES(5, 5.0, 'dev7');
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INSERT INTO PUBLIC.drop_chunk_test1 VALUES(6, 6.0, 'dev7');
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INSERT INTO PUBLIC.drop_chunk_test2 VALUES(1, 1.0, 'dev1');
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INSERT INTO PUBLIC.drop_chunk_test2 VALUES(2, 2.0, 'dev1');
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INSERT INTO PUBLIC.drop_chunk_test2 VALUES(3, 3.0, 'dev1');
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INSERT INTO PUBLIC.drop_chunk_test2 VALUES(4, 4.0, 'dev7');
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INSERT INTO PUBLIC.drop_chunk_test2 VALUES(5, 5.0, 'dev7');
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INSERT INTO PUBLIC.drop_chunk_test2 VALUES(6, 6.0, 'dev7');
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SELECT c.id AS chunk_id, pr.partition_id, pr.hypertable_id, crn.schema_name AS chunk_schema, crn.table_name AS chunk_table, c.start_time, c.end_time
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FROM _timescaledb_catalog.chunk c
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INNER JOIN _timescaledb_catalog.chunk_replica_node crn ON (c.id = crn.chunk_id)
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INNER JOIN _timescaledb_catalog.partition_replica pr ON (pr.id = crn.partition_replica_id)
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INNER JOIN _timescaledb_catalog.hypertable h ON (h.id = pr.hypertable_id)
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WHERE h.schema_name = 'public' AND (h.table_name = 'drop_chunk_test1' OR h.table_name = 'drop_chunk_test2');
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SELECT * FROM _timescaledb_catalog.chunk_replica_node;
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\dt "_timescaledb_internal".*
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SELECT _timescaledb_meta.drop_chunks_older_than(2);
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SELECT c.id AS chunk_id, pr.partition_id, pr.hypertable_id, crn.schema_name AS chunk_schema, crn.table_name AS chunk_table, c.start_time, c.end_time
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FROM _timescaledb_catalog.chunk c
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INNER JOIN _timescaledb_catalog.chunk_replica_node crn ON (c.id = crn.chunk_id)
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INNER JOIN _timescaledb_catalog.partition_replica pr ON (pr.id = crn.partition_replica_id)
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INNER JOIN _timescaledb_catalog.hypertable h ON (h.id = pr.hypertable_id)
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WHERE h.schema_name = 'public' AND (h.table_name = 'drop_chunk_test1' OR h.table_name = 'drop_chunk_test2');
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SELECT * FROM _timescaledb_catalog.chunk_replica_node;
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\dt "_timescaledb_internal".*
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SELECT _timescaledb_meta.drop_chunks_older_than(3, 'drop_chunk_test1');
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SELECT c.id AS chunk_id, pr.partition_id, pr.hypertable_id, crn.schema_name AS chunk_schema, crn.table_name AS chunk_table, c.start_time, c.end_time
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FROM _timescaledb_catalog.chunk c
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INNER JOIN _timescaledb_catalog.chunk_replica_node crn ON (c.id = crn.chunk_id)
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INNER JOIN _timescaledb_catalog.partition_replica pr ON (pr.id = crn.partition_replica_id)
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INNER JOIN _timescaledb_catalog.hypertable h ON (h.id = pr.hypertable_id)
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WHERE h.schema_name = 'public' AND (h.table_name = 'drop_chunk_test1' OR h.table_name = 'drop_chunk_test2');
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SELECT * FROM _timescaledb_catalog.chunk_replica_node;
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\dt "_timescaledb_internal".*
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