On Tue, 2020-12-22 at 16:07 -0800, Adrian Klaver wrote: > This came up in this SO question: > > https://stackoverflow.com/questions/65416748/postgres-12-4-gives-function-does-not-exists-error > > Where the query is: > > SELECT (TABLE_SCHEMA || '"."' || TABLE_NAME) as table_name, > pg_size_pretty(pg_table_size(table_name)) as table_size, > pg_size_pretty(pg_indexes_size(table_name)) AS indexes_size, > pg_size_pretty(pg_total_relation_size(table_name)) as total_size > from information_schema.TABLES nowait > where TABLE_SCHEMA='myschema' > order by pg_total_relation_size(table_name) desc; > > And the error is: > > "ERROR: function pg_table_size(information_schema.sql_identifier) does not exist > LINE 1: ..."."' || TABLE_NAME) as table_name, pg_size_pretty(pg_table_s..." I don't see the problem. Cast "table_name" and "table_schema" to "text" wherever it occurs. Yours, Laurenz Albe -- Cybertec | https://www.cybertec-postgresql.com