Why PostgreSQL Reports ‘invalid memory alloc request size’ and How to Fix It

The article explains PostgreSQL's 1 GB memory allocation limit, shows how inserting large BYTEA values triggers the “invalid memory alloc request size” error, explores the underlying memory‑context code, and offers practical work‑arounds for migration from Oracle.

BYTEADatabase LimitsMaxAllocSize

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Why PostgreSQL Reports ‘invalid memory alloc request size’ and How to Fix It