clickhouseCreate MergeTree table
CREATE TABLE tbl (event String, ts DateTime, val Int64) ENGINE = MergeTree PARTITION BY toYYYYMMDD(ts) ORDER BY (event, ts);ctrl + ctblname of the table to create (e.g. table to store events) | (event String, ts DateTime, val Int64columns declaration |
MergeTreeengine definition | toYYYYMMDD(ts)data will be partitioned by days (e.g. each day will represent it's own partition) |
ORDER BY (event, ts)these columns pair will be used as primary key (thus, making read access faster when specifying them is select query) | |
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