Commented your questions below. HTH
- Lucas Nodine On Mon, Sep 27, 2010 at 7:35 AM, sekhar kosuru <kosurusek...@gmail.com>wrote: > Hi Lucas, > > Thanks for the reply. > > Please clarify me if i am wrong, this kind of filtering will work on Key > values in ColumnFamily or any other column available in the ColumnFamily. > get_slice - "Get the group of columns contained by column_parent (either a ColumnFamily name or a ColumnFamily/SuperColumn name pair) specified by the given SlicePredicate struct." (http://wiki.apache.org/cassandra/API). Therefore, it matches against keys, and returns all the columns. > > One more thing is here we are restricting the out come for 100 records, if > we are not doing also api is resticting for 100 records. > > How to get rid of it, i have many rows satisfying the criteria. > Simply change the count to your maximum value, it can be anywhere up to the maximum value of a 32bit int. Understand that the SliceRange "is a structure that stores basic range, ordering and limit information for a query that will return multiple columns. It could be thought of as Cassandra's version of LIMIT and ORDER BY." ( http://wiki.apache.org/cassandra/API). > > > /Regards > Sekhar. > > > On Mon, Sep 27, 2010 at 5:55 PM, Lucas Nodine <lucasnod...@gmail.com>wrote: > >> Example code using C# below: >> >> Collections.Generic.List<ColumnOrSuperColumn> results; >> SlicePredicate predicate; >> ColumnParent cp; >> >> // Create Slice >> predicate = new SlicePredicate() >> { >> Slice_range = new SliceRange() >> { >> Start = _utf8.GetBytes(""), >> Finish = _utf8.GetBytes(""), >> Count = 100, >> Reversed = false >> } >> }; >> >> // Column Parent >> cp = new ColumnParent() { Column_family = "MetaAssets" }; >> >> results = _client.get_slice(_utf8.GetBytes(guid.ToString("N")), cp, >> predicate, ConsistencyLevel.QUORUM); >> >> >> On Mon, Sep 27, 2010 at 2:44 AM, Benjamin Black <b...@b3k.us> wrote: >> >>> http://wiki.apache.org/cassandra/FAQ#iter_world >>> >>> On Sun, Sep 26, 2010 at 11:51 PM, sekhar kosuru <kosurusek...@gmail.com> >>> wrote: >>> > Hi >>> > I am new to Cassandra Database. >>> > I want to know how to Retrieve all the records from a column family, is >>> this >>> > is different in the clustered servers vs single servers. >>> > Please suggest me with piece of code if possible. >>> > >>> > /Regards >>> > Sekhar. >>> > >>> >> >> >> >> -- >> Lucas J. Nodine >> Assistant Labette County Attorney >> 201 S. Central, Suite B >> Parsons, KS 67357 >> (620) 421-6370 >> > > -- Lucas J. Nodine Assistant Labette County Attorney 201 S. Central, Suite B Parsons, KS 67357 (620) 421-6370
