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From Vivek Mishra <mishra.v...@gmail.com>
Subject CQL & Thrift
Date Fri, 30 Aug 2013 17:38:25 GMT
Hi,
If i a create a table with CQL3 as

create table user(user_id text PRIMARY KEY, first_name text, last_name
text, emailid text);

and create index as:
create index on user(first_name);

then inserted some data as:
insert into user(user_id,first_name,last_name,"emailId")
values('@mevivs','vivek','mishra','vivek.mishra@impetus.co.in');


Then if update same column family using Cassandra-cli as:

update column family user with key_validation_class='UTF8Type' and
column_metadata=[{column_name:last_name, validation_class:'UTF8Type',
index_type:KEYS},{column_name:first_name, validation_class:'UTF8Type',
index_type:KEYS}];


Now if i connect via cqlsh and explore user table, i can see column
first_name,last_name are not part of table structure anymore. Here is the
output:

CREATE TABLE user (
  key text PRIMARY KEY
) WITH
  bloom_filter_fp_chance=0.010000 AND
  caching='KEYS_ONLY' AND
  comment='' AND
  dclocal_read_repair_chance=0.000000 AND
  gc_grace_seconds=864000 AND
  read_repair_chance=0.100000 AND
  replicate_on_write='true' AND
  populate_io_cache_on_flush='false' AND
  compaction={'class': 'SizeTieredCompactionStrategy'} AND
  compression={'sstable_compression': 'SnappyCompressor'};

cqlsh:cql3usage> select * from user;

 user_id
---------
 @mevivs





I understand that, CQL3 and thrift interoperability is an issue. But this
looks to me a very basic scenario.



Any suggestions? Or If anybody can explain a reason behind this?

-Vivek

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