Import Tcl 8.6.12
This commit is contained in:
Steve Dower
157
pkgs/tdbcpostgres1.1.3/doc/tdbc_postgres.n
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pkgs/tdbcpostgres1.1.3/doc/tdbc_postgres.n
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'\"
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.\" tdbc_postgres.n --
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.\"
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.\" Copyright (c) 2009 by Slawomir Cygan
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.\"
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.\" See the file "license.terms" for information on usage and redistribution of
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.\" this file, and for a DISCLAIMER OF ALL WARRANTIES.
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.TH "tdbc::postgres" n 8.6 Tcl "Tcl Database Connectivity"
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.\" .so man.macros
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.if t .wh -1.3i ^B
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.nr ^l \n(.l
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.ad b
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.\" # BS - start boxed text
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.\" # ^y = starting y location
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.\" # ^b = 1
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.de BS
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.br
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.mk ^y
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.nr ^b 1u
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.if n .nf
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.if n .ti 0
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.if n \l'\\n(.lu\(ul'
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.if n .fi
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..
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.\" # BE - end boxed text (draw box now)
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.de BE
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.nf
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.ti 0
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.mk ^t
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.ie n \l'\\n(^lu\(ul'
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.el \{\
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.\" Draw four-sided box normally, but don't draw top of
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.\" box if the box started on an earlier page.
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.ie !\\n(^b-1 \{\
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\h'-1.5n'\L'|\\n(^yu-1v'\l'\\n(^lu+3n\(ul'\L'\\n(^tu+1v-\\n(^yu'\l'|0u-1.5n\(ul'
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.\}
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.el \}\
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\h'-1.5n'\L'|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\l'|0u-1.5n\(ul'
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.\}
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.\}
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.fi
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.br
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.nr ^b 0
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..
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.\" # CS - begin code excerpt
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.de CS
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.RS
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.nf
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.ta .25i .5i .75i 1i
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..
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.\" # CE - end code excerpt
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.de CE
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.fi
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.RE
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..
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.BS
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.SH "NAME"
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tdbc::postgres \- TDBC-POSTGRES bridge
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.SH "SYNOPSIS"
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package require \fBtdbc::postgres 1.0\fR
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.sp
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\fBtdbc::postgres::connection create\fR \fIdb\fR ?\fI-option value...\fR?
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.br
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\fBtdbc::postgres::connection new\fR ?\fI-option value...\fR?
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.BE
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.SH "DESCRIPTION"
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.PP
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The \fBtdbc::postgres\fR driver provides a database interface that conforms
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to Tcl DataBase Connectivity (TDBC) and allows a Tcl script to connect
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to a Postgres database.
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.PP
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Connection to a POSTGRES database is established by invoking
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\fBtdbc::postgres::connection create\fR, passing it the name to give the
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database handle and a set of \fI-option-value\fR pairs. The available
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options are enumerated under CONNECTION OPTIONS below.
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As an alternative, \fBtdbc::postgres::connection new\fR may be used to create
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a database connection with an automatically assigned name. The return value
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from \fBtdbc::postgres::connection new\fR is the name that was chosen for the
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connection handle.
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.PP
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The side effect of \fBtdbc::postgres::connection create\fR is to create a
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new database connection.. See \fBtdbc::connection(n)\fR for the
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details of how to use the connection to manipulate a database.
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.SH "CONNECTION OPTIONS"
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.PP
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The \fBtdbc::postgres::connection create\fR object command supports the
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\fB-encoding\fR, \fB-isolation\fR, \fB-readonly\fR and \fB-timeout\fR
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options common to all TDBC drivers. The \fB-timeout\fR option will
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only affect connection process, once connected this value will be
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ignored and cannot be changed after connecting.
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.PP
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In addition, the following options are recognized (these options must be
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set on the initial creation of the connection; they cannot be changed
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after connecting) :
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.IP "\fB-host\fR \fIhostname\fR"
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Connects to the host specified by \fIhostname\fR. Default is to connect using a local Unix domain socket.
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.IP "\fB-hostaddr\fR \fIaddress\fR"
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Connects to the host specified by given IP \fIaddress\fR. If both \fB-host\fR and \fB-hostaddr\fR are given, the value
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of \fB-host\fR is ignored. Default is to connect using a local Unix domain socket.
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.IP "\fB-port\fR \fInumber\fR"
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Connects to a Postgres server listening on the port specified by \fInumber\fR.
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It is used only when \fIhost\fR or \fIhostaddr\fR is specified.
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.IP "\fB-user\fR \fIname\fR"
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Presents \fIname\fR as the user name to the Postgres server. Default is the
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current user ID.
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.IP "\fB-passwd\fR \fIpassword\fR"
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.IP "\fB-password\fR \fIpassword\fR"
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These two options are synonymous. They present the given \fIpassword\fR as
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the user's password to the Postgres server. Default is not to present a password.
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.IP "\fB-database\fR \fIname\fR"
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.IP "\fB-db\fR \fIname\fR"
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These two options are synonymous. They present the given \fIname\fR as the
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name of the default database to use in Postgres queries. If not specified,
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the default database for the current user is used.
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.IP "\fB-options\fR \fIopts\fR"
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This sets \fIopts\fR as additional command line options send to the server.
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.IP "\fB-tty\fR \fIfile\fR"
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This option is ignored on never servers. Formerly this specified where to send debug
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output. This option is left for compatibility with older servers.
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.IP "\fB-sslmode\fR \fImode\fR"
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This option determines whether or with what priority an SSL connection will be negotiated with
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the server. There are four \fImodes\fR: \fBdisable\fR will attempt only an unencrypted SSL connection;
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\fBallow\fR will negotiate, trying first a non-SSL connection, then if that fails, trying an SSL
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connection; \fBprefer\fR (the default) will negotiate, trying first an SSL connection,
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then if that fails, trying a regular non-SSL connection; \fBrequire\fR will try only an SSL connection.
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If PostgreSQL is compiled without SSL support, using option \fBrequire\fR will cause an error,
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and options \fBallow\fR and \fBprefer\fR will be tolerated but the driver will be unable to negotiate
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an SSL connection.
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.IP \fB-requiressl\fR \fIflag\fR
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This option is deprecated in favor of the \fB-sslmode\fR setting.
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The \fIflag\fR value must be a Boolean value. If it is \fBtrue\fR (or
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any equivalent), driver will then refuse to connect if the server does
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not accept an SSL connection. The default value is \fBfalse\fR (or any
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equivalent), and acts the same like \fB-sslmode\fR \fBpreffered\fR
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.IP \fB-service\fR \fIname\fR
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It specifies a service \fIname\fR in pg_service.conf file that holds additional connection parameters.
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This allows applications to specify only a service name so connection parameters can be
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centrally maintained. Refer to PostgreSQL Documentation or PREFIX/share/pg_service.conf.sample file
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for details.
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.SH EXAMPLES
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.PP
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.CS
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tdbc::postgres::connection -user joe -passwd sesame -db joes_database
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.CE
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Connects to the Postgres server on the local host using the default
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connection method, presenting user ID 'joe' and password 'sesame'.
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Uses 'joes_database' as the default database name.
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.SH "SEE ALSO"
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tdbc(n), tdbc::connection(n), tdbc::resultset(n), tdbc::statement(n)
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.SH "KEYWORDS"
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TDBC, SQL, Postgres, database, connectivity, connection
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.SH "COPYRIGHT"
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Copyright (c) 2009 by Slawomir Cygan
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.\" Local Variables:
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.\" mode: nroff
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.\" End:
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.\"
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