On 1/17/2017 1:04 PM, Adrian Klaver wrote:
On Jan 17, 2017, at 5:33 AM, kumar s <leelaseshukumar@gmail.com
<mailto:leelaseshukumar@gmail.com>> wrote: 
 Hi team thanks for giving option.... 
 I am getting update problem ...after update row thst row appended end 
 of the table ...i need update row without change row position if any 
 possible please rply . 
 In Postgres UPDATE is actually DELETE old row, INSERT new row so the row position will change. 
 Why is the new row being in a new position a problem? 
to add to this, relations (tables) are considered unordered sets, if you want a specific order, use ORDER BY in your query.
-- 
john r pierce, recycling bits in santa cruz