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><H1
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>ALTER TEXT SEARCH DICTIONARY</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN65613"
></A
><H2
>Name</H2
>ALTER TEXT SEARCH DICTIONARY -- change the definition of a text search dictionary</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN65618"
></A
><H2
>Synopsis</H2
><PRE
CLASS="SYNOPSIS"
>ALTER TEXT SEARCH DICTIONARY <TT
CLASS="REPLACEABLE"
><I
>name</I
></TT
> (
<TT
CLASS="REPLACEABLE"
><I
>option</I
></TT
> [ = <TT
CLASS="REPLACEABLE"
><I
>value</I
></TT
> ] [, ... ]
)
ALTER TEXT SEARCH DICTIONARY <TT
CLASS="REPLACEABLE"
><I
>name</I
></TT
> RENAME TO <TT
CLASS="REPLACEABLE"
><I
>new_name</I
></TT
>
ALTER TEXT SEARCH DICTIONARY <TT
CLASS="REPLACEABLE"
><I
>name</I
></TT
> OWNER TO <TT
CLASS="REPLACEABLE"
><I
>new_owner</I
></TT
>
ALTER TEXT SEARCH DICTIONARY <TT
CLASS="REPLACEABLE"
><I
>name</I
></TT
> SET SCHEMA <TT
CLASS="REPLACEABLE"
><I
>new_schema</I
></TT
></PRE
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN65629"
></A
><H2
>Description</H2
><P
> <TT
CLASS="COMMAND"
>ALTER TEXT SEARCH DICTIONARY</TT
> changes the definition of
a text search dictionary. You can change the dictionary's
template-specific options, or change the dictionary's name or owner.
</P
><P
> You must be the owner of the dictionary to use
<TT
CLASS="COMMAND"
>ALTER TEXT SEARCH DICTIONARY</TT
>.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN65635"
></A
><H2
>Parameters</H2
><P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
><TT
CLASS="REPLACEABLE"
><I
>name</I
></TT
></DT
><DD
><P
> The name (optionally schema-qualified) of an existing text search
dictionary.
</P
></DD
><DT
><TT
CLASS="REPLACEABLE"
><I
>option</I
></TT
></DT
><DD
><P
> The name of a template-specific option to be set for this dictionary.
</P
></DD
><DT
><TT
CLASS="REPLACEABLE"
><I
>value</I
></TT
></DT
><DD
><P
> The new value to use for a template-specific option.
If the equal sign and value are omitted, then any previous
setting for the option is removed from the dictionary,
allowing the default to be used.
</P
></DD
><DT
><TT
CLASS="REPLACEABLE"
><I
>new_name</I
></TT
></DT
><DD
><P
> The new name of the text search dictionary.
</P
></DD
><DT
><TT
CLASS="REPLACEABLE"
><I
>new_owner</I
></TT
></DT
><DD
><P
> The new owner of the text search dictionary.
</P
></DD
><DT
><TT
CLASS="REPLACEABLE"
><I
>new_schema</I
></TT
></DT
><DD
><P
> The new schema for the text search dictionary.
</P
></DD
></DL
></DIV
><P
> Template-specific options can appear in any order.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN65669"
></A
><H2
>Examples</H2
><P
> The following example command changes the stopword list
for a Snowball-based dictionary. Other parameters remain unchanged.
</P
><PRE
CLASS="PROGRAMLISTING"
>ALTER TEXT SEARCH DICTIONARY my_dict ( StopWords = newrussian );</PRE
><P
> The following example command changes the language option to <TT
CLASS="LITERAL"
>dutch</TT
>,
and removes the stopword option entirely.
</P
><PRE
CLASS="PROGRAMLISTING"
>ALTER TEXT SEARCH DICTIONARY my_dict ( language = dutch, StopWords );</PRE
><P
> The following example command <SPAN
CLASS="QUOTE"
>"updates"</SPAN
> the dictionary's
definition without actually changing anything.
</P><PRE
CLASS="PROGRAMLISTING"
>ALTER TEXT SEARCH DICTIONARY my_dict ( dummy );</PRE
><P>
(The reason this works is that the option removal code doesn't complain
if there is no such option.) This trick is useful when changing
configuration files for the dictionary: the <TT
CLASS="COMMAND"
>ALTER</TT
> will
force existing database sessions to re-read the configuration files,
which otherwise they would never do if they had read them earlier.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN65680"
></A
><H2
>Compatibility</H2
><P
> There is no <TT
CLASS="COMMAND"
>ALTER TEXT SEARCH DICTIONARY</TT
> statement in
the SQL standard.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN65684"
></A
><H2
>See Also</H2
><A
HREF="sql-createtsdictionary.html"
>CREATE TEXT SEARCH DICTIONARY</A
>, <A
HREF="sql-droptsdictionary.html"
>DROP TEXT SEARCH DICTIONARY</A
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