Thanks.
So the implicit value means that PG gave it a name?
Jeff Davis wrote:
> On Thu, 2006-10-19 at 18:32 -0500, Ritesh Nadhani wrote:
>> Hello
>>
>> Just trying to play around with PostgreSQL. Some commands and their
>> result are:
>>
>> test=# create table ncbi ( id serial, title varchar(50), abstract text,
>> primary key(id));
>> NOTICE: CREATE TABLE will create implicit sequence "ncbi_id_seq" for
>> serial column "ncbi.id"
>> NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index
>> "ncbi_pkey" for table "ncbi"
>> CREATE TABLE
>> test=# drop table ncbi;
>> DROP TABLE
>> test=# create table ncbi ( id serial, title varchar(50), abstract text);
>>
>> NOTICE: CREATE TABLE will create implicit sequence "ncbi_id_seq" for
>> serial column "ncbi.id"
>> CREATE TABLE
>>
>> ======
>>
>> q1) Does 'implicit index' means that they have given a default name to
>> the PK which I defined in the first query since I didnt give a name or
>> does it mean one another index is created apart from the PRIMARY KEY?
>>
>
> It only creates one index, the primary key index.
>
> Regards,
> Jeff Davis
>
>
>
