This error appears when a strict SQL/JSON path tries to fetch a key that is missing in the target JSON value.
sql_json_member_not_found is raised in PostgreSQL when a strict SQL/JSON path or ->> operator demands a JSON key that does not exist. Switch to lax mode, verify the key with the ? operator, or wrap the call in COALESCE to prevent the error.
sql_json_member_not_found
PostgreSQL throws sql_json_member_not_found (SQLSTATE 2203A) when a strict SQL/JSON path or JSON accessor calls for a member key that does not exist in the supplied JSON document.
The server fails the statement instead of returning NULL because strict mode promises that the requested element must be present.
The error shows up during SELECT, UPDATE, or INSERT statements using SQL/JSON functions added in PostgreSQL 15+.
The error fires when the ->> or -> operator is used inside a STRICT JSON path context and the key is missing. Example: SELECT jsonb_path_query('{"a":1}'::jsonb, 'strict $.b');
It also appears when JSON_TABLE, JSON_EXISTS, or JSON_QUERY runs with the STRICT option and encounters a nonexistent member.
First, confirm the key exists before strict access.
Use the ? operator or jsonb_path_exists in lax mode. Alternatively, wrap access in COALESCE to supply a default value.
If strict behavior is not required, switch to LAX mode by omitting STRICT or adding the keyword LAX to the JSON path expression.
Analytics queries often join semi-structured event payloads. Keys differ by event type, so strict access fails. Guard with WHERE payload ? 'key'.
ETL pipelines using JSON_TABLE with STRICT may break on schema drift.
Replace STRICT with LAX or stage data through a validation step.
Store predictable JSON schemas or move critical keys into typed columns. Validate JSON input on ingest to ensure mandatory keys exist.
Use Galaxy’s AI copilot to scan your query and suggest lax path modifiers or key-existence checks before execution, preventing runtime failures.
sql_json_array_not_found occurs when a strict path targets a missing array element.
Treat it the same way: switch to lax or pre-check indexes.
data_exception 22023 invalid_parameter_value appears if JSON path syntax is wrong. Validate the path string and escape quotes properly.
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No. Lax mode returns NULL for missing members instead of raising sql_json_member_not_found.
Versions 15 and later that support SQL/JSON standard functions emit SQLSTATE 2203A in strict evaluations.
Outside SQL/JSON path functions, -> and ->> return NULL for absent keys. Inside a STRICT context they propagate the error.
Galaxy’s editor warns about strict JSON paths and suggests lax modifiers or key-existence checks before you run the query, preventing runtime failures.
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