On Wed, 2003-11-19 at 14:03, Dan Greene wrote: > This may be simplistic, but is mysql putting any text before / after blob content, > such as column name, '1 row processed OK', that may be 'corrupting' the tar data? > > using a very small tar file, and run your command, piping to more instead of tar to > see if there is any extra text that mysql is adding in when it's not explictly > running 'into dumpfile'
I tried your suggestion,result in other post, I took your idea further, instead of a tar file I stored my test1 file as is, using FILE_LOAD(). before: use test; select * from test; after: mysql --skip-column-names < test1 | more use test;\nselect * from test;\n \n's are added? > > -----Original Message----- > > From: Denis Mercier [mailto:[EMAIL PROTECTED] > > Sent: Wednesday, November 19, 2003 1:55 PM > > To: [EMAIL PROTECTED] > > Subject: Re: piping blob into shell command (tar) > > > > > > On Wed, 2003-11-19 at 12:26, Paul DuBois wrote: > > > At 11:03 -0500 11/19/03, Denis Mercier wrote: > > > > > > > > >> >i also tried: > > > >> >> >use my_db; > > > >> >> >select * from my_table; > > > >> >> > > > > >> >> >so when i try shell> mysql --pager < test1 | tar x > > > >> >> > > > > >> >> >the tar file does not get written to > > /usr/local/test1 but i still dont > > > >> >> >get my untared files? write permissions are ok? > > > >> >> >what am i missing? > > > >> >> > > > >> >> Have you verified that the mysql command actually > > writes any output, for > > > >> >> example, with this command: > > > >> >> > > > >> > > shell> mysql --pager < test1 | wc > > > >> >> > > > >> >> Do you get any output from tar at all, such as an > > error message? > > > >> >> Maybe the output from mysql isn't suitable. Couple > > of things to try: > > > >> >> > > > >> >The output from mysql seems fine because when it does > > write the value > > > >> >of my blob I get a well formatted tar file, > > > >> >I'm thinking that maybe tar cannot handle a stream as > > it's input? > > > >> > > > >> That may be. In that case, you should invoke tar as > > > >> > > > >> tar xf - > > > >> > > > > > > > >I have tried tar xf but tar gives me an error, it wants a file > > > >specified. > > > > > > But I didn't say to use "tar xf". I said to use "tar xf -". That > > > dash is highly significant. It means "The file to read is the > > > standard input". > > > > tried tar xf - > > mysql < test1 | tar xf - > > tar: This does not look like a tar archive > > tar: Skipping to next header > > tar: Error exit delayed from previous errors > > > > I dont get it, if i do this command: > > > > mysql> select * into dumpfile "/usr/local/test1.tar" from my_table > > > > I get a tar archive written to /usr/local/ > > > > I'm using mysql client to store my tar file as a blob, > > mysql> insert into my_table values(LOAD_FILE("/usr/local/test1.tar")); > > > > could this function cause my problem? > > Thanks > > > > > > > > > > > -- > > > Paul DuBois, Senior Technical Writer > > > Madison, Wisconsin, USA > > > MySQL AB, www.mysql.com > > > > > > Are you MySQL certified? http://www.mysql.com/certification/ > > > > > > > > > -- > > MySQL General Mailing List > > For list archives: http://lists.mysql.com/mysql > > To unsubscribe: > http://lists.mysql.com/[EMAIL PROTECTED] > -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
