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+'\" t
+.\" Title: ALTER TEXT SEARCH CONFIGURATION
+.\" 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 "ALTER TEXT SEARCH CONFIGURATION" "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"
+ALTER_TEXT_SEARCH_CONFIGURATION \- change the definition of a 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 | CURRENT_ROLE | CURRENT_USER | SESSION_USER }
+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))