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PG.CENTER connects PostgreSQL documentation, reference, and ecosystem knowledge. Maintained by Pigsty.

FUNCTIONS / SYSTEM ADMINISTRATION FUNCTIONS

pg_column_size

Read PG 18 manual ↗

Shows the number of bytes used to store any individual data value.

Signatures & examples

pg_column_size ( "any" ) → integer
Shows the number of bytes used to store any individual data value. If applied directly to a table column value, this reflects any compression that was done.
Version history 1
  1. PG 12 → 13changed

Definition snapshot: 2026-09-14T13:14:25.684213+00:00@99e6866c · English manual source