Re: Some newbie question
От | Ritesh Nadhani |
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Тема | Re: Some newbie question |
Дата | |
Msg-id | 453812CE.5030700@gmail.com обсуждение исходный текст |
Ответ на | Re: Some newbie question (Jeff Davis <pgsql@j-davis.com>) |
Ответы |
Re: Some newbie question
|
Список | pgsql-general |
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 > > >
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