<p>MySQL throws error 1519 when an ALTER TABLE ... REORGANIZE PARTITION statement lists partitions that are not in numeric order without gaps.</p>
<p>MySQL Error 1519: ER_CONSECUTIVE_REORG_PARTITIONS signals that the partitions you want to reorganize are not listed in consecutive order. Re-run ALTER TABLE with a fully consecutive partition range or split the operation into multiple steps to resolve the issue.</p>
When reorganizing a set of partitions they must be in
MySQL error 1519 with condition name ER_CONSECUTIVE_REORG_PARTITIONS is raised during an ALTER TABLE ... REORGANIZE PARTITION command when the supplied partition list contains a gap or is out of order. The server stops the reorganization and returns SQLSTATE HY000.
The error text is: "When reorganizing a set of partitions they must be in consecutive order". MySQL enforces this rule because the storage engine rewrites partition metadata sequentially; non-contiguous input would corrupt the internal partition map.
The statement fails, leaving the table unchanged. Large tables stay locked longer, scheduled maintenance windows can slip, and automated deployments may roll back. Understanding and fixing the ordering problem prevents unnecessary downtime.
Listing p0 and p2 while omitting p1 breaks the required sequence.
Combining RANGE and HASH partitions in one REORGANIZE clause yields an implicit ordering gap.
Misspelled or capitalized names effectively skip the intended partition.
Scripts written for an older partition layout may ignore new partitions added later, causing gaps.
Occurs when partition commands target a non-partitioned table.
Raised when attempting to drop a partition that does not exist.
Triggered when a new partition name duplicates an existing one.
No. MySQL requires consecutive ordering for REORGANIZE to preserve metadata integrity.
Yes. Any partitioning method that orders partitions must respect consecutive ranges.
No. You must supply the partitions in correct order or split the operation.
Galaxy displays partition layouts in its sidebar and warns if your ALTER statement violates ordering rules.
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