PostGIS
Name
ST_BandFileSize — Returns the file size of a band stored in file system. If no bandnum specified, 1 is assumed.
Description
Returns the file size of a band stored in file system. Throws an error if called with an in db band, or if outdb access is not enabled.
This function is typically used in conjunction with ST_BandPath() and ST_BandFileTimestamp() so a client can determine if the filename of a outdb raster as seen by it is the same as the one seen by the server.
Availability: 2.5.0