Select which pages to keep and process in a PDF file.
file_id (File ID String): File ID
file_id
str_range (String): A string containing pages or page ranges e.g. “1, 2, 3-5”
str_range
File ID with metadata appended.
SELECT keep_pages( 'file_5319316b-1209-1234-9010-0ab35a9af2f9', "1, 2, 3-5" );