mirror of
https://github.com/timescale/timescaledb.git
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bfe58b61f7
Clean up the table schema to get rid of legacy tables and functionality that makes it more difficult to provide an upgrade path. Notable changes: * Get rid of legacy tables and code * Simplify directory structure for SQL code * Simplify table hierarchy: remove root table and make chunk tables * inherit directly from main table * Change chunk table suffix from _data to _chunk * Simplify schema usage: _timescaledb_internal for internal functions. * _timescaledb_catalog for metadata tables. * Remove postgres_fdw dependency * Improve code comments in sql code
67 lines
3.6 KiB
SQL
67 lines
3.6 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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CREATE INDEX ON drop_chunk_test1(time DESC);
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SELECT create_hypertable('public.drop_chunk_test1', 'time', chunk_time_interval => 1, create_default_indexes=>false);
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SELECT create_hypertable('public.drop_chunk_test2', 'time', chunk_time_interval => 1, create_default_indexes=>false);
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SELECT c.id AS chunk_id, c.partition_id, pe.hypertable_id, c.schema_name AS chunk_schema, c.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.partition p ON (p.id = c.partition_id)
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INNER JOIN _timescaledb_catalog.partition_epoch pe ON (pe.id = p.epoch_id)
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INNER JOIN _timescaledb_catalog.hypertable h ON (pe.hypertable_id = h.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_internal.get_partition_for_key('dev1', 32768);
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SELECT _timescaledb_internal.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, c.partition_id, pe.hypertable_id, c.schema_name AS chunk_schema, c.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.partition p ON (p.id = c.partition_id)
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INNER JOIN _timescaledb_catalog.partition_epoch pe ON (pe.id = p.epoch_id)
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INNER JOIN _timescaledb_catalog.hypertable h ON (pe.hypertable_id = h.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_internal.drop_chunks_older_than(2);
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SELECT c.id AS chunk_id, c.partition_id, pe.hypertable_id, c.schema_name AS chunk_schema, c.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.partition p ON (p.id = c.partition_id)
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INNER JOIN _timescaledb_catalog.partition_epoch pe ON (pe.id = p.epoch_id)
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INNER JOIN _timescaledb_catalog.hypertable h ON (pe.hypertable_id = h.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_internal.drop_chunks_older_than(3, 'drop_chunk_test1');
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SELECT c.id AS chunk_id, c.partition_id, pe.hypertable_id, c.schema_name AS chunk_schema, c.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.partition p ON (p.id = c.partition_id)
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INNER JOIN _timescaledb_catalog.partition_epoch pe ON (pe.id = p.epoch_id)
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INNER JOIN _timescaledb_catalog.hypertable h ON (pe.hypertable_id = h.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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