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Re: prep for cassandra storage from pig - Pig - [mail # user]
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...My problem is the column names are dynamic (a date), and pygmalion seems to want the column names to be fixed at "compile time" (the script). On Wed, Jun 15, 2011 at 3:04 PM, Jeremy Ha...
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Author: William Oberman,
2011-06-15, 19:08
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Re: prep for cassandra storage from pig - Pig - [mail # user]
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...Rather than staying stuck, I wrote a custom function: TupleToBagOfTuple. I'm curios if I could have avoided this though. On Wed, Jun 15, 2011 at 2:17 PM, William Oberman wrote: ...
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Author: William Oberman,
2011-06-15, 19:07
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prep for cassandra storage from pig - Pig - [mail # user]
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...I think I'm stuck on typing issues trying to store data in cassandra. To verify, cassandra wants (key, {tuples}) My pig script is fairly brief: raw = LOAD 'cassandra://test_in/te...
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Author: William Oberman,
2011-06-15, 18:17
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Re: trying to count all tuples - Pig - [mail # user]
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...Just in case this ends up as someone else's answer someday, here is the working query on real data: rows = LOAD 'cassandra://civicscience/observations' USING CassandraStorage(); filter_rows ...
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Author: William Oberman,
2011-06-08, 20:56
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Re: trying to count all tuples - Pig - [mail # user]
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...I think FILTER will do the trick? E.g. rows = LOAD 'cassandra://MyKeyspace/MyColumnFamily' USING CassandraStorage() AS (key, columns: bag {T: tuple(name, value)}); filter_rows = ...
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Author: William Oberman,
2011-06-07, 20:58
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Re: trying to count all tuples - Pig - [mail # user]
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...I tried this same script on closer to production data, and I'm getting errors. I'm 50% sure it's this: https://issues.apache.org/jira/browse/PIG-1283 One of my rows in cassandra ...
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Author: William Oberman,
2011-06-07, 20:33
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Re: trying to count all tuples - Pig - [mail # user]
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...That is exactly what I wanted, thanks for the confirm! On Fri, Jun 3, 2011 at 4:06 PM, Dmitriy Ryaboy wrote: Will Oberman Civic Science, Inc. 3030 Penn Avenue., Fir...
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Author: William Oberman,
2011-06-03, 20:09
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trying to count all tuples - Pig - [mail # user]
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...Howdy, I'm coming from cassandra, and I'm actually trying to count all columns in a column family. I believe that is similar to counting the number tuples in a bag in the lingo i...
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Author: William Oberman,
2011-06-03, 19:53
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