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manual page update from Oliver Elphick

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Oliver.Elphick@lfix.co.uk
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Bruce Momjian 1998-04-27 03:41:33 +00:00
parent 85519eea83
commit df533d2993
1 changed files with 42 additions and 9 deletions
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51
src/man/create_table.l
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@ -1,15 +1,25 @@
.\" This is -*-nroff-*-
.\" XXX standard disclaimer belongs here....
.\" $Header: /cvsroot/pgsql/src/man/Attic/create_table.l,v 1.17 1998/04/26 04:09:43 momjian Exp $
.\" $Header: /cvsroot/pgsql/src/man/Attic/create_table.l,v 1.18 1998/04/27 03:41:33 momjian Exp $
.TH "CREATE TABLE" SQL 09/25/97 PostgreSQL
.SH NAME
create table - create a new class
.SH SYNOPSIS
.nf
\fBcreate table\fR classname \fB(\fPattname type [\fBdefault\fP value] [\fBnot null\fP]
[\fB,\fP attname type [\fBdefault\fP value] [\fBnot null\fP] [, ...] ]\fB )\fP
[\fBinherits\fR \fB(\fR classname [\fB,\fR classname] \fB)\fR]
[\fBconstraint\fR cname \fBcheck\fR \fB(\fR test \fB)\fR [, \fBcheck\fR \fB(\fR test \fB)\fR ] ]
\fBcreate table\fR classname
\fB(\fP
attname type
[\fBdefault\fP value]
[[\fBnot null\fP] [\fBunique\fP] | [\fBprimary key\fP]]
[\fBreferences\fP classname \fB(\fP attname \fB)\fP]
[\fBcheck (\fP condition\fB )\fP]
[\fB,\fP attname type [constraint] [\fB,\fP ...] ]
[\fB, primary key ( \fPattname, attname[,...] \fB)\fP]
[\fB, unique ( \fPattname, attname[,...] \fB)\fP]
[\fB, foreign key ( \fPattname, attname[,...] \fB) references\fP classname]
[\fB,\fP [\fBconstraint\fR cname] \fBcheck\fR \fB(\fR test \fB)\fR [, \fBcheck\fR \fB(\fR test \fB)\fR ] ]
\fB)\fP
[\fBinherits\fR \fB(\fR classname [\fB,\fR classname] \fB)\fR]
.fi
.SH DESCRIPTION
.BR "Create Table"
@ -62,10 +72,12 @@ for a further discussion of this point.
.PP
The optional
.BR constraint
clause specifies a list of constraints or tests which new or updated entries
clauses specify constraints or tests which new or updated entries
must satisfy for an insert or update operation to succeed. Each constraint
must evaluate to a boolean expression. Multiple attributes may be referenced within
a single constraint.
a single constraint. The use of \fBprimary key (\fPattname[\fB,\fP...]\fB)\fP
as a table constraint
is mutually incompatible with \fBprimary key\fP used as a column constraint.
.PP
The new class is created as a heap with no initial data. A class can
have no more than 1600 attributes (realistically, this is limited by the
@ -92,8 +104,8 @@ create table permemp (plan name) inherits (emp)
--Create class emppay with attributes name and wage with
--a default salary and constraints on wage range
--
create table emppay (name text not null, wage float4 default 10.00)
constraint empcon check (wage > 5.30 and wage <= 30.00), check (name <> '')
create table emppay (name text not null, wage float4 default 10.00
constraint empcon check (wage > 5.30 and wage <= 30.00), check (name <> ''))
.fi
.nf
--
@ -112,5 +124,26 @@ create table tictactoe (game int4, board char[][])
--
create table newemp (name text, manager newemp)
.fi
.nf
--
--Create a table using SQL92 syntax
create table component
(
assembly char(8) not null
references job (id),
product char(8) not null
references product (id),
sorting int,
qty int check (qty >= 0),
primary key (assembly, product),
unique (assembly, product, sorting),
constraint not_same check (assembly != product)
)
.fi
.PP
.SH BUGS
The \fBforeign key\fP and \fBreferences\fP keywords are parsed but not yet
implemented in PostgreSQL 6.3.1.
.SH "SEE ALSO"
drop table(l).