mirror of https://github.com/citusdata/citus.git
44 lines
1.8 KiB
SQL
44 lines
1.8 KiB
SQL
CREATE SCHEMA shard_move_fkeys_indexes;
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SET search_path TO shard_move_fkeys_indexes;
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SET citus.next_shard_id TO 8970000;
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SET citus.next_placement_id TO 8770000;
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SET citus.shard_count TO 4;
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SET citus.shard_replication_factor TO 1;
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CREATE TABLE sensors(
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measureid integer,
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eventdatetime date,
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measure_data jsonb,
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PRIMARY KEY (measureid, eventdatetime, measure_data))
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PARTITION BY RANGE(eventdatetime);
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CREATE TABLE sensors_old PARTITION OF sensors FOR VALUES FROM ('2000-01-01') TO ('2020-01-01');
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CREATE TABLE sensors_2020_01_01 PARTITION OF sensors FOR VALUES FROM ('2020-01-01') TO ('2020-02-01');
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CREATE TABLE sensors_news PARTITION OF sensors FOR VALUES FROM ('2020-05-01') TO ('2025-01-01');
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CREATE INDEX index_on_parent ON sensors(measureid);
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CREATE INDEX index_on_child ON sensors_2020_01_01(measureid);
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SELECT create_distributed_table('sensors', 'measureid');
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CREATE TABLE colocated_partitioned_table(
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measureid integer,
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eventdatetime date,
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PRIMARY KEY (measureid, eventdatetime))
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PARTITION BY RANGE(eventdatetime);
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CREATE TABLE colocated_partitioned_table_2020_01_01 PARTITION OF colocated_partitioned_table FOR VALUES FROM ('2020-01-01') TO ('2020-02-01');
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SELECT create_distributed_table('colocated_partitioned_table', 'measureid');
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-- from child to parent
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ALTER TABLE sensors_2020_01_01 ADD CONSTRAINT fkey_from_child_to_parent FOREIGN KEY (measureid,eventdatetime) REFERENCES colocated_partitioned_table(measureid,eventdatetime);
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-- load some data
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INSERT INTO colocated_partitioned_table SELECT i, '2020-01-05' FROM generate_series(0,1000)i;
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INSERT INTO sensors SELECT i, '2020-01-05', '{}' FROM generate_series(0,1000)i;
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SELECT citus_move_shard_placement(8970000, 'localhost', :worker_1_port, 'localhost', :worker_2_port, shard_transfer_mode:='block_writes'); |