hi all: More info :
https://issues.apache.org/jira/browse/CASSANDRA-5941 I tried this (and gen. cassandra 1.2.9) but do not work for me, git clone http://git-wip-us.apache.org/repos/asf/cassandra.git cd cassandra git checkout cassandra-1.2 patch -p1 < 5867-bug-fix-filter-push-down-1.2-branch.txt ant Miguel Angel Martín Junquera Analyst Engineer. miguelangel.mar...@brainsins.com 2013/9/2 Miguel Angel Martin junquera <mianmarjun.mailingl...@gmail.com> > hi: > > I test this in cassandra 1.2.9 new version and the issue still persists . > > :-( > > > > > Miguel Angel Martín Junquera > Analyst Engineer. > miguelangel.mar...@brainsins.com > > > > 2013/8/30 Miguel Angel Martin junquera <mianmarjun.mailingl...@gmail.com> > >> I try this: >> >> *rows = LOAD >> 'cql://keyspace1/test?page_size=1&split_size=4&where_clause=age%3D30' USING >> CqlStorage();* >> >> *dump rows;* >> >> *ILLUSTRATE rows;* >> >> *describe rows;* >> >> * >> * >> >> *values2= FOREACH rows GENERATE TOTUPLE (id) as >> (mycolumn:tuple(name,value));* >> >> *dump values2;* >> >> *describe values2;* >> * >> * >> >> But I get this results: >> >> >> >> ------------------------------------------------------------- >> | rows | id:chararray | age:int | title:chararray | >> ------------------------------------------------------------- >> | | (id, 6) | (age, 30) | (title, QA) | >> ------------------------------------------------------------- >> >> rows: {id: chararray,age: int,title: chararray} >> 2013-08-30 09:54:37,831 [main] ERROR org.apache.pig.tools.grunt.Grunt - >> ERROR 1031: Incompatable field schema: left is >> "tuple_0:tuple(mycolumn:tuple(name:bytearray,value:bytearray))", right is >> "org.apache.pig.builtin.totuple_id_1:tuple(id:chararray)" >> >> >> >> >> >> or >> >> >> >> .... >> >> *values2= FOREACH rows GENERATE TOTUPLE (id) ;* >> *dump values2;* >> *describe values2;* >> >> >> >> >> and the results are: >> >> >> ... >> (((id,6))) >> (((id,5))) >> values2: {org.apache.pig.builtin.totuple_id_8: (id: chararray)} >> >> >> >> Aggg!!!!! >> >> >> * >> * >> >> >> >> >> Miguel Angel Martín Junquera >> Analyst Engineer. >> miguelangel.mar...@brainsins.com >> >> >> >> 2013/8/28 Miguel Angel Martin junquera <mianmarjun.mailingl...@gmail.com> >> >>> hi: >>> >>> I can not understand why the schema is define like >>> *"id:chararray,age:int,title:chararray" >>> and it does not define like tuples or bag tuples, if we have pair >>> key-values columns* >>> * >>> * >>> * >>> * >>> *I try other time to change schema but it does not work.* >>> * >>> * >>> *any ideas ...* >>> * >>> * >>> *perhaps, is the issue in the definition cql3 tables ?* >>> * >>> * >>> *regards* >>> >>> >>> 2013/8/28 Miguel Angel Martin junquera <mianmarjun.mailingl...@gmail.com >>> > >>> >>>> hi all: >>>> >>>> >>>> Regards >>>> >>>> Still i can resolve this issue. ..... >>>> >>>> does anybody have this issue or try to test this simple example? >>>> >>>> >>>> i am stumped I can not find a solution working. >>>> >>>> I appreciate any comment or help >>>> >>>> >>>> 2013/8/22 Miguel Angel Martin junquera < >>>> mianmarjun.mailingl...@gmail.com> >>>> >>>>> hi all: >>>>> >>>>> >>>>> >>>>> >>>>> I,m testing the new CqlStorage() with cassandra 1.28 and pig 0.11.1 >>>>> >>>>> >>>>> I am using this sample data test: >>>>> >>>>> >>>>> http://frommyworkshop.blogspot.com.es/2013/07/hadoop-map-reduce-with-cassandra.html >>>>> >>>>> And I load and dump data Righ with this script: >>>>> >>>>> *rows = LOAD >>>>> 'cql://keyspace1/test?page_size=1&split_size=4&where_clause=age%3D30' >>>>> USING >>>>> CqlStorage();* >>>>> * >>>>> * >>>>> *dump rows;* >>>>> *describe rows;* >>>>> * >>>>> * >>>>> >>>>> *resutls: >>>>> >>>>> ((id,6),(age,30),(title,QA)) >>>>> >>>>> ((id,5),(age,30),(title,QA)) >>>>> >>>>> rows: {id: chararray,age: int,title: chararray} >>>>> >>>>> >>>>> * >>>>> >>>>> >>>>> But i can not get the column values >>>>> >>>>> I try to define another schemas in Load like I used with >>>>> cassandraStorage() >>>>> >>>>> >>>>> http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Cassandra-and-Pig-how-to-get-column-values-td5641158.html >>>>> >>>>> >>>>> example: >>>>> >>>>> *rows = LOAD >>>>> 'cql://keyspace1/test?page_size=1&split_size=4&where_clause=age%3D30' >>>>> USING >>>>> CqlStorage() AS (columns: bag {T: tuple(name, value)});* >>>>> >>>>> >>>>> and I get this error: >>>>> >>>>> *2013-08-22 12:24:45,426 [main] ERROR >>>>> org.apache.pig.tools.grunt.Grunt - ERROR 1031: Incompatable schema: left >>>>> is >>>>> "columns:bag{T:tuple(name:bytearray,value:bytearray)}", right is >>>>> "id:chararray,age:int,title:chararray"* >>>>> >>>>> >>>>> >>>>> >>>>> I try to use, FLATTEN, SUBSTRING, SPLIT UDF`s but i have not get good >>>>> result: >>>>> >>>>> Example: >>>>> >>>>> >>>>> - when I flatten , I get a set of tuples like >>>>> >>>>> *(title,QA)* >>>>> >>>>> *(title,QA)* >>>>> >>>>> *2013-08-22 12:42:20,673 [main] INFO >>>>> org.apache.pig.backend.hadoop.executionengine.util.MapRedUtil - Total >>>>> input paths to process : 1* >>>>> >>>>> *A: {title: chararray}* >>>>> >>>>> >>>>> >>>>> but i can get value QA >>>>> >>>>> Sustring only works with title >>>>> >>>>> >>>>> >>>>> example: >>>>> >>>>> *B = FOREACH A GENERATE SUBSTRING(title,2,5);* >>>>> * >>>>> * >>>>> *dump B;* >>>>> *describe B;* >>>>> * >>>>> * >>>>> * >>>>> * >>>>> >>>>> *results:* >>>>> * >>>>> * >>>>> >>>>> *(tle)* >>>>> *(tle)* >>>>> *B: {chararray}* >>>>> >>>>> >>>>> >>>>> >>>>> i try, this like ERIC LEE inthe other mail and have the same results: >>>>> >>>>> >>>>> Anyways, what I really what is the column value, not the name. Is >>>>> there a way to do that? I listed all of the failed attempts I made below. >>>>> >>>>> - colnames = FOREACH cols GENERATE $1 and was told $1 was out of >>>>> bounds. >>>>> - casted = FOREACH cols GENERATE (tuple(chararray, chararray))$0; >>>>> but all I got back were empty tuples >>>>> - values = FOREACH cols GENERATE $0.$1; but I got an error telling >>>>> me data byte array can't be casted to tuple >>>>> >>>>> >>>>> Please, I will appreciate any help >>>>> >>>>> >>>>> Regards >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>> >>>> >>>> -- >>>> >>>> Miguel Angel Martín Junquera >>>> Analyst Engineer. >>>> miguelangel.mar...@brainsins.com >>>> Tel. / Fax: (+34) 91 485 56 66 >>>> *http://www.brainsins.com* >>>> Smart eCommerce >>>> *Madrid*: http://goo.gl/4B5kv >>>> *London*: http://goo.gl/uIXdv >>>> *Barcelona*: http://goo.gl/NZslW >>>> >>>> Antes de imprimir este e-mail, piense si es necesario. >>>> La legislación española ampara el secreto de las comunicaciones. Este >>>> correo electrónico es estrictamente confidencial y va dirigido >>>> exclusivamente a su destinatario/a. Si no es Ud., le rogamos que no difunda >>>> ni copie la transmisión y nos lo notifique cuanto antes. >>>> >>> >>> >>> >>> -- >>> >>> Miguel Angel Martín Junquera >>> Analyst Engineer. >>> miguelangel.mar...@brainsins.com >>> >>> >> >
