sp_MScheck_logicalrecord_metadatamatch (Transact-SQL MetaData) Definition

Please note: that the following source code is provided and copyrighted by Microsoft and is for educational purpose only.
The meta data is from an SQL 2012 Server.

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Definition:

sys.sp_MScheck_logicalrecord_metadatamatch(tinyint @metadata_type
, int @parent_nickname
, uniqueidentifier @parent_rowguid
, varbinary @logical_record_lineage
, uniqueidentifier @pubid)

MetaData:

 create procedure sys.sp_MScheck_logicalrecord_metadatamatch  
    (@metadata_type tinyint,   
     @parent_nickname int,  
     @parent_rowguid uniqueidentifier,  
     @logical_record_lineage varbinary(311),  
     @pubid uniqueidentifier)  
as  
    declare @match int, @existing_lineage varbinary(311), @retcode int, @sel_proc nvarchar(255)  
      
    exec @retcode = sys.sp_MSrepl_PAL_rolecheck @pubid = @pubid   
    if (@retcode <> 0) or (@@error <> 0)  
        return 1  
          
    select @match = 0, @existing_lineage = NULL  
      
    if @metadata_type = 3  
    begin  
            -- lock the parent row  
            select @sel_proc = 'dbo.' + select_proc from dbo.sysmergearticles   
                    where pubid = @pubid and nickname = @parent_nickname  
            exec @retcode = @sel_proc @maxschemaguidforarticle = NULL, @type = 8, @rowguid=@parent_rowguid  
            if @@error <> 0 or @retcode <> 0  
                    return 1  
    end  
      
    select @existing_lineage = logical_record_lineage   
    from dbo.MSmerge_contents with (updlock)   
    where tablenick = @parent_nickname   
    and rowguid =  @parent_rowguid   
              
    if @existing_lineage = @logical_record_lineage and @metadata_type = 2  
    begin  
                select @match = 1  
        end  
    else if @existing_lineage is null  
    begin        
                select @existing_lineage = logical_record_lineage   
                from dbo.MSmerge_tombstone with (updlock)   
                where tablenick = @parent_nickname   
                and rowguid = @parent_rowguid   
              
        if @existing_lineage = @logical_record_lineage and @metadata_type in (1,5,6)  
                begin  
                        select @match = 1  
                end  
                else if @existing_lineage is null  
                begin  
            if @metadata_type in (0,3)  
            begin  
                                select @match = 1  
                        end  
                end  
        end  
     
    if (@match = 0)  
    begin  
                raiserror(22521, 16, -1)  
                return 1  
        end  
    return 0