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Name:       inew_indexfile

Purpose:    make index file for open database

Prototype:  int inew_index_file (Db_Obj   *db,
                                 int     blksize,
                                 int     overwrite);

Header:     isam.h

Inputs:     db          - database handle
            blksize     - block size for the new index file
            overwrite   - whether to overwrite an existing file.

Description:
        inew_index_file makes a new index file containing only a Physical
        Index for the database db.  The data file for the database is not
        alterered in any way.  Its main use is to re-create indexes for a
        database after the index file has been garbled or destroyed.  After
        you have made a new index file with this function, use imkindex to
        re-make your own indexes.

        The blksize is the block size for the new index file.  You can use
        0 or DEFAULT_BLKSIZE to get the default block size.  If you choose a
        block size that is less than the minimum block size, it is an error.

        If the overwrite flag is YES, inew_index_file makes a new
        index file even if there is an existing index file.  If the
        overwrite flag is NO, it will not overwrite an existing index
        file.

Returns:
        OK or ERROR

WARNING:
        If this routine returns an ERROR, it is probably best to exit the
        program and start over.