on duplicate key work around
Is there a clever way to simulate the on duplicate key behavior on a range of data apart from deleting the range and re-inserting?
CREATE TABLE cs1 ( id INT(10) UNSIGNED NOT NULL, `timestamp_` DATETIME, numeric_val DOUBLE DEFAULT NULL ) ENGINE=columnstore; INSERT INTO cs1 VALUES (1, '2017-11-30 10:30:00', 13.13), ... ON DUPLICATE KEY UPDATE numeric_val = VALUES(numeric_val);
Answer Answered by David Thompson in this comment.
Since columnstore doesn't have unique indexes, then yes more or less. Another option is to load your inbound data into a staging table and then doing an insert select where you join and filter out the duplicates in what gets selected.
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