Error
Error Code:
22034
PostgreSQL Error 22034: Multiple SQL JSON Items Detected
Description
Error 22034, categorized as a 'Data Exception', occurs when an SQL/JSON function or operation expects a single JSON item (scalar value, object, or array) but encounters or selects multiple items. This typically happens when processing JSON data within SQL queries, indicating a mismatch between the expected and actual number of JSON items.
Error Message
more than one sql json item
Known Causes
3 known causesBroad JSON Path Selection
A SQL/JSON path expression is too general, selecting multiple JSON items when the consuming function is designed to process only one.
Unexpected Array in Context
An SQL/JSON function receives an array as input or output from a sub-expression, but the context or the function itself requires a single, non-array JSON value.
Misuse of SQL/JSON Functions
Using functions like JSON_QUERY (which can return arrays or multiple JSON values) where a function expecting a single scalar value (e.g., from JSON_VALUE) is required.
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