Percona Server has extended secure-file-priv server option. When used with no argument, the LOAD_FILE() function will always return NULL. The LOAD DATA INFILE and SELECT INTO OUTFILE statements will fail with the following error: “The MySQL server is running with the –secure-file-priv option so it cannot execute this statement”. LOAD DATA LOCAL INFILE is not affected by the –secure-file-priv option and will still work when it’s used without an argument.
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