EC
1736
MariaDBERRORNotablePartitioningHIGH confidence

Tables have different metadata for EXCHANGE PARTITION

Production Risk

Low — operation rejected; no data moved.

What this means

The table-level metadata (such as CHARACTER SET, COLLATION, ROW_FORMAT, or KEY_BLOCK_SIZE) differs between the partitioned table and the exchange table, preventing EXCHANGE PARTITION.

Why it happens
  1. 1Different DEFAULT CHARSET or COLLATION between the two tables.
  2. 2Different ROW_FORMAT settings.
How to reproduce
trigger — this will error
trigger — this will error
ALTER TABLE part_t EXCHANGE PARTITION p0 WITH TABLE other_t;

expected output

ERROR 1736 (HY000): Tables have different metadata for EXCHANGE PARTITION.

Fix

Align table metadata between both tables

Align table metadata between both tables
SHOW CREATE TABLE part_t;
SHOW CREATE TABLE other_t;
-- Alter other_t to match charset, collation, and row_format.
ALTER TABLE other_t CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci ROW_FORMAT=DYNAMIC;

Why this works

Matching all table-level options ensures metadata compatibility for the exchange.

What not to do

✕

Sources
Official documentation ↗

MySQL 8.0 — 1736 ER_TABLES_DIFFERENT_METADATA

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