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diff --git a/doc/src/sgml/man7/SELECT_INTO.7 b/doc/src/sgml/man7/SELECT_INTO.7 new file mode 100644 index 0000000..217ae85 --- /dev/null +++ b/doc/src/sgml/man7/SELECT_INTO.7 @@ -0,0 +1,147 @@ +'\" t +.\" Title: SELECT INTO +.\" Author: The PostgreSQL Global Development Group +.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/> +.\" Date: 2023 +.\" Manual: PostgreSQL 15.5 Documentation +.\" Source: PostgreSQL 15.5 +.\" Language: English +.\" +.TH "SELECT INTO" "7" "2023" "PostgreSQL 15.5" "PostgreSQL 15.5 Documentation" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +SELECT_INTO \- define a new table from the results of a query +.SH "SYNOPSIS" +.sp +.nf +[ WITH [ RECURSIVE ] \fIwith_query\fR [, \&.\&.\&.] ] +SELECT [ ALL | DISTINCT [ ON ( \fIexpression\fR [, \&.\&.\&.] ) ] ] + * | \fIexpression\fR [ [ AS ] \fIoutput_name\fR ] [, \&.\&.\&.] + INTO [ TEMPORARY | TEMP | UNLOGGED ] [ TABLE ] \fInew_table\fR + [ FROM \fIfrom_item\fR [, \&.\&.\&.] ] + [ WHERE \fIcondition\fR ] + [ GROUP BY \fIexpression\fR [, \&.\&.\&.] ] + [ HAVING \fIcondition\fR ] + [ WINDOW \fIwindow_name\fR AS ( \fIwindow_definition\fR ) [, \&.\&.\&.] ] + [ { UNION | INTERSECT | EXCEPT } [ ALL | DISTINCT ] \fIselect\fR ] + [ ORDER BY \fIexpression\fR [ ASC | DESC | USING \fIoperator\fR ] [ NULLS { FIRST | LAST } ] [, \&.\&.\&.] ] + [ LIMIT { \fIcount\fR | ALL } ] + [ OFFSET \fIstart\fR [ ROW | ROWS ] ] + [ FETCH { FIRST | NEXT } [ \fIcount\fR ] { ROW | ROWS } ONLY ] + [ FOR { UPDATE | SHARE } [ OF \fItable_name\fR [, \&.\&.\&.] ] [ NOWAIT ] [\&.\&.\&.] ] +.fi +.SH "DESCRIPTION" +.PP +\fBSELECT INTO\fR +creates a new table and fills it with data computed by a query\&. The data is not returned to the client, as it is with a normal +\fBSELECT\fR\&. The new table\*(Aqs columns have the names and data types associated with the output columns of the +\fBSELECT\fR\&. +.SH "PARAMETERS" +.PP +TEMPORARY or TEMP +.RS 4 +If specified, the table is created as a temporary table\&. Refer to +CREATE TABLE (\fBCREATE_TABLE\fR(7)) +for details\&. +.RE +.PP +UNLOGGED +.RS 4 +If specified, the table is created as an unlogged table\&. Refer to +CREATE TABLE (\fBCREATE_TABLE\fR(7)) +for details\&. +.RE +.PP +\fInew_table\fR +.RS 4 +The name (optionally schema\-qualified) of the table to be created\&. +.RE +.PP +All other parameters are described in detail under +\fBSELECT\fR(7)\&. +.SH "NOTES" +.PP +\fBCREATE TABLE AS\fR +is functionally similar to +\fBSELECT INTO\fR\&. +\fBCREATE TABLE AS\fR +is the recommended syntax, since this form of +\fBSELECT INTO\fR +is not available in +ECPG +or +PL/pgSQL, because they interpret the +INTO +clause differently\&. Furthermore, +\fBCREATE TABLE AS\fR +offers a superset of the functionality provided by +\fBSELECT INTO\fR\&. +.PP +In contrast to +\fBCREATE TABLE AS\fR, +\fBSELECT INTO\fR +does not allow specifying properties like a table\*(Aqs access method with +USING \fImethod\fR +or the table\*(Aqs tablespace with +TABLESPACE \fItablespace_name\fR\&. Use +\fBCREATE TABLE AS\fR +if necessary\&. Therefore, the default table access method is chosen for the new table\&. See +default_table_access_method +for more information\&. +.SH "EXAMPLES" +.PP +Create a new table +films_recent +consisting of only recent entries from the table +films: +.sp +.if n \{\ +.RS 4 +.\} +.nf +SELECT * INTO films_recent FROM films WHERE date_prod >= \*(Aq2002\-01\-01\*(Aq; +.fi +.if n \{\ +.RE +.\} +.SH "COMPATIBILITY" +.PP +The SQL standard uses +\fBSELECT INTO\fR +to represent selecting values into scalar variables of a host program, rather than creating a new table\&. This indeed is the usage found in +ECPG +(see +Chapter\ \&36) and +PL/pgSQL +(see +Chapter\ \&43)\&. The +PostgreSQL +usage of +\fBSELECT INTO\fR +to represent table creation is historical\&. Some other SQL implementations also use +\fBSELECT INTO\fR +in this way (but most SQL implementations support +\fBCREATE TABLE AS\fR +instead)\&. Apart from such compatibility considerations, it is best to use +\fBCREATE TABLE AS\fR +for this purpose in new code\&. +.SH "SEE ALSO" +CREATE TABLE AS (\fBCREATE_TABLE_AS\fR(7)) |