EC
1494
MySQLERRORNotablePartitioningHIGH confidence

Field in partition function not found in table

Production Risk

Low — DDL error; the table will not be created.

What this means

ER_FIELD_NOT_FOUND_PART_ERROR (1494, SQLSTATE HY000) is raised when the column referenced in the partitioning function does not exist in the table.

Why it happens
  1. 1Typo in the column name used in the PARTITION BY expression
  2. 2Partitioning by a column that was not included in the CREATE TABLE statement
How to reproduce
trigger — this will error
trigger — this will error
CREATE TABLE t (id INT, name VARCHAR(100))
PARTITION BY RANGE(nonexistent_col) (
  PARTITION p0 VALUES LESS THAN (100)
);

expected output

ERROR 1494 (HY000): Field in list of fields for partition function not found in table

Fix

Use an existing column in the partition function

Use an existing column in the partition function
CREATE TABLE t (id INT, name VARCHAR(100))
PARTITION BY RANGE(id) (
  PARTITION p0 VALUES LESS THAN (100),
  PARTITION p1 VALUES LESS THAN MAXVALUE
);

Why this works

The partition function must reference columns that are defined in the table.

Sources
Official documentation ↗

MySQL 8.0 — 1494 ER_FIELD_NOT_FOUND_PART_ERROR

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