42883 operator 🐘 PostgreSQL

ERROR: operator does not exist: integer = text

A comparison or operation mixes types PostgreSQL won’t implicitly convert.

Seen on: PostgreSQL

Meaning

PostgreSQL is strict: comparing integer to text, uuid to text, or jsonb to text needs an explicit cast. Often caused by parameters bound as strings.

Common causes

  • Comparing columns of different types in joins
  • Parameters sent as text to integer/uuid columns
  • jsonb ->> returns text compared to numbers

⚡ Quick fix

  1. Cast explicitly: col = $1::int
  2. Fix column types so joins match
  3. Use -> vs ->> appropriately for jsonb

Detailed fix by platform

PostgreSQL

  1. SELECT * FROM orders WHERE (data->>'total')::numeric > 100;

How to diagnose

  1. Types — Both sides of the operator
  2. Recent change — Did it start after a deploy, upgrade, or configuration change? Compare with the last working version.

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