Error
Error Code:
22P06
PostgreSQL Error 22P06: Nonstandard Escape Character Use
Description
This `22P06` error, categorized as a Data Exception, indicates that a string literal or data input contains an escape sequence that is not recognized or is used in a non-standard way by PostgreSQL. It typically occurs when the database parser encounters a backslash character followed by a character that doesn't form a valid escape sequence, or when standard SQL string literal rules are violated.
Error Message
nonstandard use of escape character
Known Causes
3 known causesInvalid Escape Sequence in String Literal
You might be using a backslash followed by a character that PostgreSQL does not recognize as a valid escape sequence within a standard SQL string literal (e.g., 'foo\xbar').
Missing E'' Prefix for C-style Escapes
Attempting to use C-style escape sequences (like \n for newline or \t for tab) in a string literal without preceding it with `E''` (e.g., `SELECT '\n'`) when `standard_conforming_strings` is enabled.
Unescaped Backslashes in Data Input
Importing data where literal backslash characters were intended but were not properly escaped (doubled) according to PostgreSQL's string literal rules, leading to misinterpretation.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service