2203BERRORTier 2 — Caution✅ HIGH confidenceSQL/JSON number not found
Category: Data ExceptionVersions: Postgres 14+
What this means
SQLSTATE 2203B is raised when a SQL/JSON operation expects a numeric value but finds a non-numeric JSON value.
Why it happens
- 1Applying a numeric SQL/JSON method or operation to a JSON string, boolean, or null value
How to reproduce
SQL/JSON numeric method on a non-numeric value.
trigger — this will ERROR
SELECT jsonb_path_query('"hello"'::jsonb, '$.double()');ERROR: string argument of jsonpath item method .double() is not a valid representation of a double precision number
Fix 1: Ensure the JSON value is numeric before applying numeric methods
When using .double(), .integer(), or similar numeric JSON path methods.
fix
SELECT jsonb_path_query('3.14'::jsonb, '$.double()');Why this works
Validate JSON schema or use jsonb_typeof() to confirm the value is a number.
Version notes
Postgres 14+JSON path item methods available from Postgres 12+.Sources
📚 Official docs: https://www.postgresql.org/docs/current/errcodes-appendix.html
🔧 Source ref: Class 22 — Data Exception
Confidence assessment
✅ HIGH confidence
Standard SQLSTATE. Stable.
See also
📄 Reference pages
SQL/JSON Path Language
⚙️ This error reference was generated with AI assistance and reviewed for accuracy. Examples are provided to illustrate common scenarios and may not cover every case. Always test fixes in a development environment before applying to production. Spotted an error? Suggest a correction →