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oximeter: optimize measurements tables. #9289

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22 changes: 22 additions & 0 deletions oximeter/db/schema/replicated/15/up.sql
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Original file line number Diff line number Diff line change
@@ -0,0 +1,22 @@
CREATE TABLE IF NOT EXISTS oximeter.measurements_cumulativef64_local_new_15 ON CLUSTER oximeter_cluster
(
timeseries_name String,
timeseries_key UInt64,
start_time DateTime64(9, 'UTC'),
timestamp DateTime64(9, 'UTC'),
datum Nullable(Float64)
)
ENGINE = ReplicatedMergeTree('/clickhouse/tables/{shard}/measurements_cumulativef64_local', '{replica}')
PARTITION BY (toYYYYMMDD(timestamp))
ORDER BY (timeseries_name, timeseries_key, start_time, timestamp)
TTL toDateTime(timestamp) + INTERVAL 30 DAY;

INSERT INTO oximeter.measurements_cumulativef64_local_new_15
SELECT * FROM oximeter.measurements_cumulativef64_local;

RENAME TABLE
oximeter.measurements_cumulativef64_local_new_15 to oximeter.measurements.cumulativef64_local,
oximeter.measurements_cumulativef64_local to oximeter.measurements.cumulativef64_local_old_15;

-- TODO: Drop the original table in a separate step, after verifying the migration.
-- DROP TABLE oximeter.measurements_cumulativef64_old_15;
1 change: 1 addition & 0 deletions oximeter/db/schema/replicated/db-init-1.sql
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Expand Up @@ -49,6 +49,7 @@ CREATE TABLE IF NOT EXISTS oximeter.measurements_cumulativef64_local ON CLUSTER
datum Nullable(Float64)
)
ENGINE = ReplicatedMergeTree('/clickhouse/tables/{shard}/measurements_cumulativef64_local', '{replica}')
PARTITION BY (toYYYYMMDD(timestamp))
ORDER BY (timeseries_name, timeseries_key, start_time, timestamp)
TTL toDateTime(timestamp) + INTERVAL 30 DAY;

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