From df533d299397d777944384e84c35bb9f1181ef29 Mon Sep 17 00:00:00 2001 From: Bruce Momjian Date: Mon, 27 Apr 1998 03:41:33 +0000 Subject: [PATCH] manual page update from Oliver Elphick Oliver.Elphick@lfix.co.uk --- src/man/create_table.l | 51 ++++++++++++++++++++++++++++++++++-------- 1 file changed, 42 insertions(+), 9 deletions(-) diff --git a/src/man/create_table.l b/src/man/create_table.l index 0846349657..41bf9d5a97 100644 --- a/src/man/create_table.l +++ b/src/man/create_table.l @@ -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). -- 2.40.0