PostgresDB 22P05: Untranslatable Character

Character could not be translated.

When encountering error 22P05: Untranslatable Character in a PostgreSQL database, follow these steps to investigate and address the issue:

  1. Identify the Problematic Query and Data:
    • If possible, identify the query that caused the error and the data it was trying to process. This often involves looking at application logs or the PostgreSQL log file. You can check the PostgreSQL log by running:SELECT * FROM pg_read_file('log_filename', 0, 1048576) WHERE log_line LIKE '%22P05%';
      Replace 'log_filename' with the actual log file name, which you can find in your PostgreSQL configuration file (postgresql.conf) under the log_filename parameter.
  2. Check the Character Encoding of the Database and Client:
    • Verify the database and client encoding by running:SHOW server_encoding;
      SHOW client_encoding;
      Ensure that the client encoding is compatible with the server encoding or is set to a universal encoding like UTF-8 that can handle a wide range of characters.
  3. Attempt to Reproduce the Error with a Controlled Query (if applicable):
    • If you have identified the problematic data, try to insert or update the data manually using a tool like psql or another database client, ensuring to set the client encoding appropriately. For psql, you can set the client encoding by running:SET client_encoding TO 'desired_encoding';
      Replace 'desired_encoding' with the encoding you wish to use, like 'UTF8'.
  4. Convert the Problematic Data to a Compatible Encoding (if known):
    • If you have identified specific characters or strings that are causing the issue and know the current encoding, you can attempt to convert these to a compatible encoding using a function or a tool outside of PostgreSQL, then re-insert the corrected data.
  5. Adjust the Client Application Encoding (if applicable):
    • If the error is due to a mismatch between the application and the database encoding, adjust the application's database connection settings to use a compatible encoding, typically UTF-8.
  6. Temporarily Change the Client Encoding:
    • As a temporary measure, you can change the client encoding to 'WIN1252' or another that might support the character, to bypass the error for specific operations. However, this is not a solution but a temporary workaround and might not work for all cases: SET client_encoding TO 'WIN1252';
      Remember to set it back to its original setting after performing the necessary operations.

Each of these steps involves direct interaction with the database or the data, aimed at identifying or correcting the specific issue causing the "Untranslatable Character" error.

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