Bug? - Mailing list pgsql-hackers

From Indira Muthuswamy
Subject Bug?
Date
Msg-id e1a645540610180623s2d3bf652k7fee992947a65903@mail.gmail.com
Whole thread Raw
Responses Re: Bug?  (Andrew Dunstan <andrew@dunslane.net>)
Re: Bug?  ("Jim C. Nasby" <jim@nasby.net>)
List pgsql-hackers
Hai,
 
 I have encountered a problem with PostgreSQL.I have created a table 'tab1' with a column 'a' with serial type.I entered 20 records into the  table.So the query
  select max(a) from tab1;
returned 20.When I tried the same query after the command
 truncate table tab1;
I found that the output of the first query as
 
 max
-----

(1 row)

When I tried to insert a new row into the table tab1 I found that the value at column a incremented to the value 21.
But I heard from my friends that the value of the serial column gets decremented whenever we issue the 'truncate table' command (in MS SQL SERVER).Is the concept same with PostgreSQL or not?Can anyone clarify me on this?
 
Thanks in advance,
Regards,
m.Indira

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