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Pig, mail # user - error to generate a map?


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Re: error to generate a map?
Yang 2012-06-20, 23:00
actually I found that the git_hub version of pig works fine for these
examples
likely some bug that was fixed

On Wed, Jun 20, 2012 at 3:56 PM, Yang <[EMAIL PROTECTED]> wrote:

> thanks Alan
>
> the problem does not seem to be string
>
> if I have
>
> a = load 'a' as x:chararray;
>
> b = foreach a generate (['mykey'#x]);
>
> it would fail
> while if u change the x to 1    it works fine
>
>
> the same issue of constants vs var is also seen in the following example
> for bag:
>
> grunt>  b = foreach a generate {(x),(x)} as  bb:bag{T:tuple ( yy:int)};
> 2012-06-20 15:54:08,053 [main] ERROR org.apache.pig.tools.grunt.Grunt -
> ERROR 1200: <line 5, column 25>  rule null_keyword failed predicate:
> {input.LT(1).getText().equalsIgnoreCase("NULL")}?
> Details at logfile:
> /crypt/yyang_home/work/matching/ML-places-matcher/control_flows/match_suspects/pig_1340232590787.log
> grunt>  b = foreach a generate {(1),(1)} as  bb:bag{T:tuple ( yy:int)};
>
> the second one succeeds
>
>
> Thanks
> Yang
>
> On Fri, Jun 15, 2012 at 8:58 AM, Alan Gates <[EMAIL PROTECTED]> wrote:
>
>> Maps require string keys.  So it should read ['222'#1].
>>
>> Alan.
>>
>> On Jun 7, 2012, at 8:51 PM, Yang wrote:
>>
>> > I ran the following simple pig script
>> >
>> >
>> > a = load 'a';
>> >
>> > b = foreach a generate [222#1];
>> >
>> > dump b;
>> >
>> >
>> > but it gave the following error
>> >
>> > $ pig -x local  a.pig
>> > 2012-06-07 20:49:13,039 [main] INFO  org.apache.pig.Main - Logging error
>> > messages to:
>> >
>> /crypt/yyang_home/work/matching/ML-places-matcher/control_flows/match_suspects/pig_1339127353036.log
>> > 2012-06-07 20:49:13,168 [main] INFO
>> > org.apache.pig.backend.hadoop.executionengine.HExecutionEngine -
>> > Connecting to hadoop file system at: file:///
>> > 2012-06-07 20:49:13,692 [main] ERROR org.apache.pig.tools.grunt.Grunt -
>> > ERROR 1200: <file a.pig, line 3, column 23>  Syntax error, unexpected
>> > symbol at or near '['
>> >
>> >
>> >
>> > but this script is basically the same as the one copied from manual:
>> > http://pig.apache.org/docs/r0.9.2/basic.html
>> >
>> > A = LOAD 'data' USING MyStorage() AS (T: tuple(name:chararray, age:
>> int));
>> > B = FILTER A BY T == ('john', 25);
>> > D = FOREACH B GENERATE T.name, [25#5.6], {(1, 5, 18)};
>> >
>> >
>> >
>> > how could I fix it?
>> >
>> >
>> >
>> > thanks!
>> >
>> > yang
>>
>>
>