Common SQL Errors

MySQL Error 1733: ER_PARTITION_EXCHANGE_TEMP_TABLE - How to Fix and Prevent

Galaxy Team
August 7, 2025

<p>Error 1733 occurs when ALTER TABLE ... EXCHANGE PARTITION references a temporary table, which MySQL does not allow.</p>

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What is MySQL error code 1733?

<p>MySQL Error 1733: ER_PARTITION_EXCHANGE_TEMP_TABLE happens when ALTER TABLE ... EXCHANGE PARTITION targets a TEMPORARY table. Convert the temporary table to a regular table or use CREATE TABLE ... LIKE to build a non-temporary replica, then rerun the exchange to resolve the error.</p>

Error Highlights

Typical Error Message

Table to exchange with partition is temporary: '%s'

Error Type

Partitioning Error

Language

MySQL

Symbol

ER_PARTITION_EXCHANGE_TEMP_TABLE

Error Code

1733

SQL State

HY000

Explanation

Table of Contents

What is MySQL error code 1733?

MySQL raises error 1733 (ER_PARTITION_EXCHANGE_TEMP_TABLE) with the message "Table to exchange with partition is temporary" when you attempt to run ALTER TABLE ... EXCHANGE PARTITION using a temporary table. Because temporary tables are scoped to the current session, MySQL blocks the swap to prevent orphaned metadata and data corruption.

The operation fails immediately, leaving both the partitioned table and the temporary table unchanged. Production migrations, ETL jobs, and online schema changes that rely on the exchange halt until the problem is corrected.

What causes this error?

The primary trigger is that the source table specified in the EXCHANGE PARTITION clause was created with CREATE TEMPORARY TABLE. MySQL forbids exchanging partitions with temporary tables because they disappear automatically when the session ends.

Secondary factors include mismatched table definitions, incorrect partition options, or scripting mistakes where a temporary helper table is generated instead of a permanent one.

How to fix MySQL Error 1733

Replace the temporary table with a permanent table. Use CREATE TABLE ... LIKE to clone the structure of the partition, fill it with data, and then run ALTER TABLE ... EXCHANGE PARTITION again.

If the table must remain temporary for other logic, copy its data into a new permanent staging table just before the exchange, then drop the staging table afterward.

Common scenarios and solutions

In deployment pipelines, migration tools often stage data in temporary tables for speed. Convert these to regular tables or add a cleanup step that drops them later.

In analytics workflows executed through Galaxy, ensure the AI copilot generates CREATE TABLE statements without the TEMPORARY keyword when planning partition exchanges.

Best practices to avoid this error

Standardize migration scripts to use permanent staging tables. Validate table type and structure before running EXCHANGE PARTITION by querying INFORMATION_SCHEMA.TABLES.

Automate pre-checks in CI/CD using SELECT TABLE_TYPE to confirm no temporary tables are referenced in DDL statements.

Related errors and solutions

Error 1732 (ER_PARTITION_EXCHANGE_DIFFERENT_OPTION) occurs when the source table lacks identical table options. Align ENGINE, ROW_FORMAT, and INDEX definitions to resolve.

Error 1517 (ER_DROP_PARTITION_NON_EXISTENT) appears when dropping a non-existent partition. Verify partition names with SHOW CREATE TABLE before executing DDL.

Common Causes

Temporary table used in EXCHANGE PARTITION

The referenced table was created with CREATE TEMPORARY TABLE, so MySQL blocks the exchange.

Mismatched DDL generator scripts

Automated tools mistakenly prepend TEMPORARY to staging tables used in deployment or ETL flows.

Human error in interactive sessions

A developer manually created a temporary table for testing and then reused it in production DDL.

Related Errors

MySQL Error 1732: ER_PARTITION_EXCHANGE_DIFFERENT_OPTION

Occurs when the table options of the source table differ from the partitioned table. Align ENGINE, ROW_FORMAT, and COLLATION to fix.

MySQL Error 1517: ER_DROP_PARTITION_NON_EXISTENT

Raised when attempting to drop a partition that does not exist. Verify partition names with SHOW CREATE TABLE or INFORMATION_SCHEMA.PARTITIONS.

MySQL Error 1486: ER_PARTITION_SUBPARTITION_ERROR

Indicates misuse of subpartition definitions. Ensure correct partitioning syntax and supported storage engine.

FAQs

Can I ever exchange a partition with a temporary table?

No. MySQL explicitly disallows TEMPORARY tables in EXCHANGE PARTITION operations because the table could vanish at session end, risking metadata corruption.

Does WITHOUT VALIDATION fix the error?

WITHOUT VALIDATION only skips foreign key and constraint checks. It does not bypass the temporary-table restriction.

Will renaming the temporary table work?

Renaming does not change table type. You must create a new permanent table or recreate the original without the TEMPORARY keyword.

How does Galaxy help prevent this error?

Galaxy’s AI copilot and schema-aware linting highlight TEMPORARY table usage in partition exchanges, guiding you to convert them to permanent tables before execution.

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