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'\" t .\" Title: ALTER TEXT SEARCH CONFIGURATION .\" Author: The PostgreSQL Global Development Group .\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> .\" Date: 2017-11-06 .\" Manual: PostgreSQL 9.2.24 Documentation .\" Source: PostgreSQL 9.2.24 .\" Language: English .\" .TH "ALTER TEXT SEARCH CONFIGURATION" "7" "2017-11-06" "PostgreSQL 9.2.24" "PostgreSQL 9.2.24 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" ALTER_TEXT_SEARCH_CONFIGURATION \- change the definition of a text search configuration .\" ALTER TEXT SEARCH CONFIGURATION .SH "SYNOPSIS" .sp .nf ALTER TEXT SEARCH CONFIGURATION \fIname\fR ADD MAPPING FOR \fItoken_type\fR [, \&.\&.\&. ] WITH \fIdictionary_name\fR [, \&.\&.\&. ] ALTER TEXT SEARCH CONFIGURATION \fIname\fR ALTER MAPPING FOR \fItoken_type\fR [, \&.\&.\&. ] WITH \fIdictionary_name\fR [, \&.\&.\&. ] ALTER TEXT SEARCH CONFIGURATION \fIname\fR ALTER MAPPING REPLACE \fIold_dictionary\fR WITH \fInew_dictionary\fR ALTER TEXT SEARCH CONFIGURATION \fIname\fR ALTER MAPPING FOR \fItoken_type\fR [, \&.\&.\&. ] REPLACE \fIold_dictionary\fR WITH \fInew_dictionary\fR ALTER TEXT SEARCH CONFIGURATION \fIname\fR DROP MAPPING [ IF EXISTS ] FOR \fItoken_type\fR [, \&.\&.\&. ] ALTER TEXT SEARCH CONFIGURATION \fIname\fR RENAME TO \fInew_name\fR ALTER TEXT SEARCH CONFIGURATION \fIname\fR OWNER TO \fInew_owner\fR ALTER TEXT SEARCH CONFIGURATION \fIname\fR SET SCHEMA \fInew_schema\fR .fi .SH "DESCRIPTION" .PP \fBALTER TEXT SEARCH CONFIGURATION\fR changes the definition of a text search configuration\&. You can modify its mappings from token types to dictionaries, or change the configuration\*(Aqs name or owner\&. .PP You must be the owner of the configuration to use \fBALTER TEXT SEARCH CONFIGURATION\fR\&. .SH "PARAMETERS" .PP \fIname\fR .RS 4 The name (optionally schema\-qualified) of an existing text search configuration\&. .RE .PP \fItoken_type\fR .RS 4 The name of a token type that is emitted by the configuration\*(Aqs parser\&. .RE .PP \fIdictionary_name\fR .RS 4 The name of a text search dictionary to be consulted for the specified token type(s)\&. If multiple dictionaries are listed, they are consulted in the specified order\&. .RE .PP \fIold_dictionary\fR .RS 4 The name of a text search dictionary to be replaced in the mapping\&. .RE .PP \fInew_dictionary\fR .RS 4 The name of a text search dictionary to be substituted for \fIold_dictionary\fR\&. .RE .PP \fInew_name\fR .RS 4 The new name of the text search configuration\&. .RE .PP \fInew_owner\fR .RS 4 The new owner of the text search configuration\&. .RE .PP \fInew_schema\fR .RS 4 The new schema for the text search configuration\&. .RE .PP The ADD MAPPING FOR form installs a list of dictionaries to be consulted for the specified token type(s); it is an error if there is already a mapping for any of the token types\&. The ALTER MAPPING FOR form does the same, but first removing any existing mapping for those token types\&. The ALTER MAPPING REPLACE forms substitute \fInew_dictionary\fR for \fIold_dictionary\fR anywhere the latter appears\&. This is done for only the specified token types when FOR appears, or for all mappings of the configuration when it doesn\*(Aqt\&. The DROP MAPPING form removes all dictionaries for the specified token type(s), causing tokens of those types to be ignored by the text search configuration\&. It is an error if there is no mapping for the token types, unless IF EXISTS appears\&. .SH "EXAMPLES" .PP The following example replaces the english dictionary with the swedish dictionary anywhere that english is used within my_config\&. .sp .if n \{\ .RS 4 .\} .nf ALTER TEXT SEARCH CONFIGURATION my_config ALTER MAPPING REPLACE english WITH swedish; .fi .if n \{\ .RE .\} .SH "COMPATIBILITY" .PP There is no \fBALTER TEXT SEARCH CONFIGURATION\fR statement in the SQL standard\&. .SH "SEE ALSO" CREATE TEXT SEARCH CONFIGURATION (\fBCREATE_TEXT_SEARCH_CONFIGURATION\fR(7)), DROP TEXT SEARCH CONFIGURATION (\fBDROP_TEXT_SEARCH_CONFIGURATION\fR(7))
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