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This lists the contents of a temporary directory associated to a given tablespace, useful to get information about on-disk consumption caused by temporary files used by a session query. By default, pg_default is scanned, and a tablespace can be specified as argument. This function is intended to be used by monitoring tools, and, unlike pg_ls_dir(), access to them can be granted to non-superusers so that those monitoring tools can observe the principle of least privilege. Access is also given by default to members of pg_monitor. Author: Nathan Bossart Reviewed-by: Laurenz Albe Discussion: https://postgr.es/m/92F458A2-6459-44B8-A7F2-2ADD3225046A@amazon.com