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>udm_alloc_agent</H1
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><P
> (PHP 4 >= 4.0.5)</P
>udm_alloc_agent -- Allocate mnoGoSearch session</DIV
><DIV
CLASS="refsect1"
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NAME="AEN56516"
></A
><H2
>Description</H2
>int <B
CLASS="methodname"
>udm_alloc_agent</B
> ( string dbaddr [, string dbmode])<BR
></BR
><P
><B
CLASS="function"
>udm_alloc_agent()</B
> returns mnogosearch agent
identifier on success, <TT
CLASS="constant"
><B
>FALSE</B
></TT
> on error. This function creates a
session with database parameters.
</P
><P
> <TT
CLASS="parameter"
><I
>dbaddr</I
></TT
> - URL-style database description.
Options (type, host, database name, port, user and password) to connect
to SQL database. Do not matter for built-in text files support. Format:
DBAddr DBType:[//[DBUser[:DBPass]@]DBHost[:DBPort]]/DBName/ Currently
supported DBType values are: mysql, pgsql, msql, solid, mssql, oracle,
ibase. Actually, it does not matter for native libraries support.
But ODBC users should specify one of supported values. If your database
type is not supported, you may use "unknown" instead.
</P
><P
> <TT
CLASS="parameter"
><I
>dbmode</I
></TT
> - You may select SQL database mode of
words storage. When "single" is specified, all words are stored in the same
table. If "multi" is selected, words will be located in different tables
depending of their lengths. "multi" mode is usually faster but requires
more tables in database. If "crc" mode is selected, mnoGoSearch will
store 32 bit integer word IDs calculated by CRC32 algorythm instead of
words. This mode requres less disk space and it is faster comparing with "single"
and "multi" modes. "crc-multi" uses the same storage structure with the
"crc" mode, but also stores words in different tables depending on
words lengths like "multi" mode. Format: DBMode single/multi/crc/crc-multi</P
><DIV
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CLASS="note"
><P
><B
>Note: </B
>
<TT
CLASS="parameter"
><I
>dbaddr</I
></TT
> and <TT
CLASS="parameter"
><I
>dbmode</I
></TT
> must match
those used during indexing.
</P
></BLOCKQUOTE
></DIV
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>Note: </B
>
In fact this function does not open connection to database and
thus does not check entered login and password. Actual connection to
database and login/password verification is done by <A
HREF="function.udm-find.html"
><B
CLASS="function"
>udm_find()</B
></A
>.
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