Обсуждение: BUG #13897: backquotes and inserting files into columns.
BUG #13897: backquotes and inserting files into columns.
От
arthur.lewis@hypermediasystems.com
Дата:
The following bug has been logged on the website: Bug reference: 13897 Logged by: Arthur Lewis Email address: arthur.lewis@hypermediasystems.com PostgreSQL version: 9.3.10 Operating system: Ubuntu Linux 14 (32 bit) Description: In the manual (http://www.postgresql.org/docs/9.3/static/app-psql.html) it says in order to insert a file into the database all you do is the following: testdb=> \set content `cat my_file.txt` testdb=> INSERT INTO my_table VALUES (:'content'); The manual also says: Within an argument, text that is enclosed in backquotes (`) is taken as a command line that is passed to the shell. The output of the command (with any trailing newline removed) replaces the backquoted text. I have a file called my_file.txt and it has 53604 bytes. When I do this testdb=> \set content `cat my_file.txt` testdb=> select length(:'content'); length -------------- 53603 Because of back-quotes I've just lost a byte (a trailing newline) and the original file has been changed. If there is a better way than using back-quotes please let me know.