You could try using property file instead of cli param to pass the
name/value ...
Regards,
Mridul
On Tuesday 19 April 2011 05:29 AM, Andreas Paepcke wrote:
I'm still struggling with parameter substitution.
Below are six examples. Two work, the others don't.
When they don't, I get this error message:
ERROR org.apache.pig.Main - ERROR 2999: Unexpected internal error.
Encountered unexpected arguments on command line - please check the
command line.
$ pig -param COLOR=blue script.pig -- Works
$ pig -param COLOR="blue-green" script.pig -- Works
$ pig -param COLOR="blue green" script.pig -- Fails
$ pig -param COLOR="'blue green'" script.pig -- Fails
$ pig -param COLOR="\'blue green\'" script.pig -- Fails
$ pig -param COLOR="blue\ green" script.pig -- Fails
How do I protect spaces so that I can pass multi-word
parameters into Pig?
Thanks,
Andreas
On Tue, Mar 15, 2011 at 7:23 AM, Alan Gates<[email protected]> wrote:
If you know before you start the script which you want, you can use
parameter substitution:
A = load 'foo';
...
Z = foreach Y generate ...;
$DO_OUTPUT
Then, depending on which you want, run pig with
pig -pDO_OUTPUT='dump Z;';
or
pig -pDO_OUTPUT="store Z into 'outfile';"
If you want to decide which to do based on results of the script, then
you'll need the new control flow integration features available in 0.9.
These aren't yet released, but they are in trunk.
Alan.
On Mar 14, 2011, at 10:40 PM, Andreas Paepcke wrote:
I want to do something really simple: I want to pass a string
into a Pig script. The string is either "stdout" or some target
file name. Say the string gets bound to $OUTPUT. That all
works fine.
After the script has computed a result R, depending on the
value of $OUTPUT, I want either to do a dump R (if
$OUTPUT == "stdout"), or a STORE of R into the given
file name that's held in $OUTPUT.
How do I do that conditional? I played with bincond, but
got stuck.
Thanks!
Andreas
Andreas
