1004 error code does not correspond to a
string_data_right_truncation error in Postgres. The
string_data_right_truncation error typically has the SQLSTATE code
22001. This error occurs when an attempt is made to store a string in a column that is longer than the column’s maximum length. For example, trying to insert a 300-character string into a
VARCHAR(255) column would trigger this error.
To diagnose and fix a
string_data_right_truncation error in Postgres, you should:
- Check the length of the data you’re trying to insert or update against the column’s maximum length. Ensure that the data does not exceed this limit.
- If necessary, increase the column’s size using the
ALTER TABLEcommand to accommodate larger strings. For example:
ALTER TABLE your_table_name
ALTER COLUMN your_column_name TYPE VARCHAR(new_size);
new_size is the new maximum length for the column.
- Alternatively, if increasing the column size is not possible or desirable, you can truncate the data to fit into the column’s limit or choose a different column type like
TEXT, which has a much larger size limit.
Here’s an example of how you might encounter and fix a
Suppose you have a
users table with a
username column defined as
VARCHAR(50), and you try to insert a username that is 60 characters long:
INSERT INTO users (username) VALUES ('a_very_long_username_that_exceeds_the_fifty_character_limit');
This would raise the
string_data_right_truncation error because the username exceeds the 50-character limit. To fix this, you could either:
- Truncate the username to 50 characters before insertion.
- Alter the
usernamecolumn to allow more characters, if appropriate:
ALTER TABLE users
ALTER COLUMN username TYPE VARCHAR(60);
If you encounter this error and the details provided here do not help, you may want to refer to the PostgreSQL Error Codes documentation for further information.