Thanks James.

While doing some testing on this, I have accidentally ended up with two columns 
having same name/type but different column sizes. Please see below (table with 
column name “ID” repeating twice):

[cid:[email protected]]


From: James Taylor [mailto:[email protected]]
Sent: Monday, December 21, 2015 13:29
To: user
Subject: Re: Alter table - can't add column to table which has PK column type 
is VARBINARY

Correct - it has to do with the way we encode column values in the row key. 
Since a VARBINARY can be any length with any bytes, we cannot know where it 
ends. Thus we only allow it at the end of the row key. With a BINARY, you're 
telling Phoenix how big it is, so it can occur anywhere in the PK constraint. 
For more information, see PHOENIX-1223.



On Mon, Dec 21, 2015 at 9:33 AM, 
<[email protected]<mailto:[email protected]>> wrote:
Strangely, if the primary key column is of type BINARY (instead of VARBINARY), 
columns can be added using alter table.

From: Ramanathan, Kannan: IT (NYK)
Sent: Monday, December 21, 2015 11:38
To: [email protected]<mailto:[email protected]>
Subject: Alter table - can't add column to table which has PK column type is 
VARBINARY

Hello all,

I am trying to alter table (adding new column) to a table which has a primary 
key column of type VARBINARY. I am getting the following error:

Error: ERROR 1015 (42J04): Cannot add column to table when the last PK column 
is of type VARBINARY or ARRAY. columnName=ID
SQLState:  42J04
ErrorCode: 1015

Is this not supported? What are the other options please?

Thanks
Kannan.

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