Re: CQL and schema-less column family

2011-09-09 Thread osishkin osishkin
shkin osishkin Date: Wed, Sep 7, 2011 at 2:02 PM Subject: Re: CQL and schema-less column family To: user@cassandra.apache.org, eev...@acunu.com Thank you very much Eric for your response. Some follow-up questions come to mind: 1. What will be the performance hit for querying a coulmn name not predefin

Re: CQL and schema-less column family

2011-09-07 Thread osishkin osishkin
Thank you very much Eric for your response. Some follow-up questions come to mind: 1. What will be the performance hit for querying a coulmn name not predefined in a schema? if it's not indexed, then I guess Cassandra will have to iterate all rows,which will impose huge overhead. 2. Assuming my g

Re: CQL and schema-less column family

2011-09-07 Thread Eric Evans
On Tue, Sep 6, 2011 at 12:22 PM, osishkin osishkin wrote: > Sorry for the newbie question but I failed to find a clear answer. > Can CQL be used to query a schema-less column family? can they be indexed? > That is, query for column names that do not necessarily exist in all > rows, and were not de

CQL and schema-less column family

2011-09-06 Thread osishkin osishkin
Sorry for the newbie question but I failed to find a clear answer. Can CQL be used to query a schema-less column family? can they be indexed? That is, query for column names that do not necessarily exist in all rows, and were not defined in advance when the column family was created. Thank you