table_comment

# File activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb, line 242
        def table_comment(table_name) # :nodoc:
          name = Utils.extract_schema_qualified_name(table_name.to_s)
          if name.identifier
            select_value(              SELECT pg_catalog.obj_description(c.oid, 'pg_class')              FROM pg_catalog.pg_class c                LEFT JOIN pg_namespace n ON n.oid = c.relnamespace              WHERE c.relname = #{quote(name.identifier)}                AND c.relkind IN ('r') -- (r)elation/table                AND n.nspname = #{name.schema ? quote(name.schema) : 'ANY (current_schemas(false))'}.strip_heredoc, 'SCHEMA')
          end
        end