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@ -1,17 +1,17 @@ |
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.\" This is -*-nroff-*- |
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.\" XXX standard disclaimer belongs here.... |
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.\" $Header: /cvsroot/pgsql/doc/man/Attic/create_index.l,v 1.1.1.1 1996/08/18 22:14:21 scrappy Exp $ |
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.\" $Header: /cvsroot/pgsql/doc/man/Attic/create_index.l,v 1.2 1996/09/19 20:07:15 scrappy Exp $ |
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.TH "CREATE INDEX" SQL 11/05/95 Postgres95 Postgres95 |
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.SH NAME |
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create index \(em construct a secondary index |
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.SH SYNOPSIS |
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.nf |
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\fBcreate\fR \fBindex\fR index-name |
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\fBon\fR classname \fBusing\fR am-name |
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\fB(\fR attname type_class \fB)\fR |
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\fBon\fR classname [\fBusing\fR am-name] |
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\fB(\fR attname [type_class\fB] )\fR |
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\fBcreate\fR \fBindex\fR index-name |
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\fBon\fR classname \fBusing\fR am-name |
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\fBon\fR classname [\fBusing\fR am-name] |
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\fB(\fR funcname \fB(\fR attname\-1 { , attname\-i } \fB)\fR type_class \fB)\fR |
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.fi |
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.SH DESCRIPTION |
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@ -20,6 +20,7 @@ This command constructs an index called |
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.PP |
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.IR Am-name |
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is the name of the access method which is used for the index. |
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The default access method is btree. |
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.PP |
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In the first syntax shown above, the key field for the index is |
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specified as an attribute name and an associated |
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@ -30,6 +31,8 @@ would use the |
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.IR int4_ops |
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class; this operator class includes comparison functions for four-byte |
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integers. |
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The default operator class is the appropriate operator class for |
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that field type. |
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.PP |
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In the second syntax shown above, an index can be defined on the |
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result of a user-defined function |
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Marc G. Fournier
30 years ago