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https://github.com/GreptimeTeam/greptimedb.git
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aac3ede261
* feat: allow creating logical tabel with same partition rule with physical table's Signed-off-by: Ruihang Xia <waynestxia@gmail.com> * fix errors Signed-off-by: Ruihang Xia <waynestxia@gmail.com> --------- Signed-off-by: Ruihang Xia <waynestxia@gmail.com>
182 lines
4.8 KiB
SQL
182 lines
4.8 KiB
SQL
create table metric_engine_partition (
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ts timestamp time index,
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host string,
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cpu double,
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`one_partition_key` string,
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`another_partition_key` string,
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primary key(host, `one_partition_key`, `another_partition_key`)
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)
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partition on columns (host, `one_partition_key`, `another_partition_key`) (
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host <= 'host1',
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host > 'host1' and host <= 'host2',
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host > 'host2'
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)
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engine = metric
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with (
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physical_metric_table = "true",
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);
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select count(*) from metric_engine_partition;
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create table logical_table_1 (
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ts timestamp time index,
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host string primary key,
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cpu double,
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)
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partition on columns (host) ()
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engine = metric
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with (
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on_physical_table = "metric_engine_partition",
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);
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create table invalid_logical_partition (
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ts timestamp time index,
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host string primary key,
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cpu double,
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)
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partition on columns (host) (
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host <= 'host1',
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host > 'host1' and host <= 'host2',
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host > 'host2' and host <= 'host3',
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host > 'host3'
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)
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engine = metric
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with (
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on_physical_table = "metric_engine_partition",
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);
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create table logical_table_2 (
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ts timestamp time index,
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host string primary key,
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cpu double,
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)
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partition on columns (host) (
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host <= 'host1',
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host > 'host1' and host <= 'host2',
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host > 'host2'
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)
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engine = metric
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with (
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on_physical_table = "metric_engine_partition",
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);
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insert into logical_table_2(ts, host, cpu) values
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('2023-01-01 00:00:00', 'host1', 1.0),
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('2023-01-01 00:00:01', 'host2', 2.0),
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('2023-01-01 00:00:02', 'host3', 3.0);
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show create table logical_table_2;
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select count(*) from logical_table_2;
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-- check if part col aggr push down works with only subset of phy part cols
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select host, count(*) from logical_table_2 GROUP BY host ORDER BY host;
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-- SQLNESS REPLACE (-+) -
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-- SQLNESS REPLACE (\s\s+) _
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-- SQLNESS REPLACE (peers.*) REDACTED
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-- SQLNESS REPLACE (metrics.*) REDACTED
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-- SQLNESS REPLACE (RepartitionExec:.*) RepartitionExec: REDACTED
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EXPLAIN
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select host, count(*) from logical_table_2 GROUP BY host ORDER BY host;
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-- check if step aggr push down works with non-part col
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select ts, count(*) from logical_table_2 GROUP BY ts ORDER BY ts;
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-- SQLNESS REPLACE (-+) -
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-- SQLNESS REPLACE (\s\s+) _
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-- SQLNESS REPLACE (peers.*) REDACTED
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-- SQLNESS REPLACE (metrics.*) REDACTED
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-- SQLNESS REPLACE (RepartitionExec:.*) RepartitionExec: REDACTED
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EXPLAIN
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select ts, count(*) from logical_table_2 GROUP BY ts ORDER BY ts;
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create table logical_table_3 (
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ts timestamp time index,
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a string,
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z string,
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cpu double,
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primary key(a, z) -- trigger a physical table change with smaller and bigger column ids
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)
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engine = metric
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with (
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on_physical_table = "metric_engine_partition",
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);
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show create table logical_table_3;
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insert into logical_table_3(ts, a, z, cpu) values
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('2023-01-01 00:00:00', 'a1', 'z1', 1.0),
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('2023-01-01 00:00:01', 'a2', 'z2', 2.0),
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('2023-01-01 00:00:02', 'a3', 'z3', 3.0);
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select count(*) from logical_table_3;
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-- check if step aggr push down works with non-part col
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select a, count(*) from logical_table_3 GROUP BY a ORDER BY a;
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-- SQLNESS REPLACE (-+) -
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-- SQLNESS REPLACE (\s\s+) _
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-- SQLNESS REPLACE (peers.*) REDACTED
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-- SQLNESS REPLACE (metrics.*) REDACTED
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-- SQLNESS REPLACE (RepartitionExec:.*) RepartitionExec: REDACTED
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EXPLAIN
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select a, count(*) from logical_table_3 GROUP BY a ORDER BY a;
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-- create a logical table without partition columns on physical table
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create table logical_table_4 (
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ts timestamp time index,
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cpu double,
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)
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engine = metric
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with (
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on_physical_table = "metric_engine_partition",
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);
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show create table logical_table_4;
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insert into logical_table_4(ts, cpu) values
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('2023-01-01 00:00:00', 1.0),
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('2023-01-01 00:00:01', 2.0),
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('2023-01-01 00:00:02', 3.0);
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-- this should only return one row
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select count(*) from logical_table_4;
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-- SQLNESS REPLACE (-+) -
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-- SQLNESS REPLACE (\s\s+) _
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-- SQLNESS REPLACE (peers.*) REDACTED
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-- SQLNESS REPLACE (metrics.*) REDACTED
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-- SQLNESS REPLACE (RepartitionExec:.*) RepartitionExec: REDACTED
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EXPLAIN select count(*) from logical_table_4;
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-- check if step aggr push down works with non-part col
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select ts, count(*) from logical_table_4 GROUP BY ts ORDER BY ts;
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-- SQLNESS REPLACE (-+) -
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-- SQLNESS REPLACE (\s\s+) _
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-- SQLNESS REPLACE (peers.*) REDACTED
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-- SQLNESS REPLACE (metrics.*) REDACTED
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-- SQLNESS REPLACE (RepartitionExec:.*) RepartitionExec: REDACTED
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EXPLAIN
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select ts, count(*) from logical_table_4 GROUP BY ts ORDER BY ts;
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select * from logical_table_4;
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-- SQLNESS REPLACE (-+) -
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-- SQLNESS REPLACE (\s\s+) _
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-- SQLNESS REPLACE (peers.*) REDACTED
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-- SQLNESS REPLACE (metrics.*) REDACTED
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-- SQLNESS REPLACE (RepartitionExec:.*) RepartitionExec: REDACTED
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EXPLAIN select * from logical_table_4;
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drop table logical_table_1;
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drop table logical_table_2;
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drop table logical_table_3;
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drop table logical_table_4;
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drop table metric_engine_partition;
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