too many JSON array elements

Q: How to fix PostgreSQL 2203D too many JSON array elements?

Reduce the JSON array size or process in chunks: Limit array sizes in the application before storing, or use jsonb_array_elements() to process large arrays element by element.

What this means

SQLSTATE 2203D is raised when a JSON array contains more elements than the maximum allowed in a specific SQL/JSON context.

Why it happens

1A SQL/JSON operation imposes a limit on the number of array elements and the input exceeds it

How to reproduce

JSON array with too many elements for the target context.

expected output

ERROR:  too many JSON array elements

Fix

Reduce the JSON array size or process in chunks

WHEN When this error appears.

Why this works

Limit array sizes in the application before storing, or use jsonb_array_elements() to process large arrays element by element.

Version notes

Postgres 14+

SQL/JSON array limit enforcement added in Postgres 14.

Sources

Official documentation ↗

Class 22 — Data Exception

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At a glance

PlatformPostgreSQL SQLSTATE Errors

Code2203D

ClassData Exception

SeverityERROR

TierNotable

ConfidenceHIGH