EC
1430
MariaDBerrorserverhigh confidence

Problem processing query on the foreign data source

Production Risk

High — queries against the federated table fail until the remote issue is resolved.

What this means

A query was successfully sent to the remote FEDERATED table source but the remote server returned an error.

Why it happens
  1. 1SQL syntax error that only manifests on the remote server version
  2. 2Table or column no longer exists on the remote server
  3. 3Permission denied on the remote server for the federated user
How to reproduce
trigger — this will error
trigger — this will error
INSERT INTO federated_table (col) VALUES (1);

expected output

ERROR 1430 (HY000): There was a problem processing the query on the foreign data source. Data source error: ...

Fix 1

Run the query directly on the remote server

Why this works

Connect to the remote server and test the query to isolate the error.

Fix 2

Verify remote table schema matches local FEDERATED table

Verify remote table schema matches local FEDERATED table
SHOW CREATE TABLE federated_table;

Why this works

Check the column definitions match the remote schema.

Sources
Official documentation ↗

MySQL 8.0 — 1430 ER_QUERY_ON_FOREIGN_DATA_SOURCE

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