I use ruby client to access data from Cassandra.. Is there any way to get the column names for a given key in a column family. Suppose a column family "test" has 100 rows with rows having different column names. SO given a key how do I get the column names for that key??
1 Answers
2
votes
If you are using the 'cassandra' gem then you would do something like this:
@client.get(:my_column_family, key).keys
@client.get returns an ordered hash of column_name => column_value so .keys will give you the column_names.
If you are using the 'cassandra-cql' gem:
@client.execute("select * from my_column_family where key = ?", key).fetch.column_names
