Interesting.
Using shell, I did:
hbase(main):001:0> create 't2', {NAME => 'f1'}, {NAME => 'f1'}
The table got created - with 1 column family:
hbase(main):002:0> describe 't2'
DESCRIPTION
ENABLED
't2', {NAME => 'f1', DATA_BLOCK_ENCODING => 'NONE', BLOOMFILTER => 'ROW',
REPLICATION_SCOPE => '0 true
', VERSIONS => '1', COMPRESSION => 'NONE', MIN_VERSIONS => '0', TTL =>
'2147483647', KEEP_DELETED
_CELLS => 'false', BLOCKSIZE => '65536', IN_MEMORY => 'false', BLOCKCACHE
=> 'true'}
1 row(s) in 0.1000 seconds
On Thu, Oct 23, 2014 at 1:27 AM, Sznajder ForMailingList <
[email protected]> wrote:
> Hi
>
> Is it allowed to provide two similar family names during the creation of an
> HBase table?
>
> I was expecting that it is forbidden, **but** this call does not throw any
> exception
>
> String[] families = {"cf", "cf"};
> HTableDescriptor desc = new HTableDescriptor(name);
> for (String cf : families) {
> HColumnDescriptor coldef = new HColumnDescriptor(cf);
> desc.addFamily(coldef);
> }
> try {
> admin.createTable(desc);
> } catch (TableExistsException e) {
> throw new IOException("table \'" + name + "\' already exists");
> }
>
