EC
1731
MySQLERRORNotablePartitioningHIGH confidence

Tables have different definitions for ALTER TABLE ... EXCHANGE PARTITION

Production Risk

Low — operation rejected; no data moved.

What this means

ALTER TABLE ... EXCHANGE PARTITION requires both tables to have identical structure including column types, indexes, and table options. This error fires when they differ.

Why it happens
  1. 1The non-partitioned table has a different column definition, index, or table option than the partition being swapped.
How to reproduce
trigger — this will error
trigger — this will error
ALTER TABLE partitioned_t EXCHANGE PARTITION p0 WITH TABLE non_part_t;

expected output

ERROR 1731 (HY000): Tables have different definitions. ALTER TABLE ... EXCHANGE PARTITION requires that the partition table and exchange table have the same structure.

Fix

Ensure both tables have identical structure

Ensure both tables have identical structure
SHOW CREATE TABLE partitioned_t;
SHOW CREATE TABLE non_part_t;
-- Alter non_part_t to match the partition definition exactly.

Why this works

Both tables must have matching columns, indexes, character sets, and storage engines.

What not to do

✕

Sources
Official documentation ↗

MySQL 8.0 — 1731 ER_PARTITION_EXCHANGE_DIFFERENT_OPTION

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