Update columnstore-indexes-overview.md

Author: pmasl

docs/relational-databases/indexes/columnstore-indexes-overview.md

@@ -58,7 +58,7 @@ A rowgroup from where all data has been deleted transitions from COMPRESSED into
 > After merging smaller rowgroups, the index quality should be improved. 
 
 > [!NOTE]
-> Starting with [!INCLUDE[sql-server-2019](../../includes/sssql19-md.md)], the tuple-mover is helped by a background merge task that automatically compresses smaller OPEN delta rowgroups that have existed for some time as determined by an internal threshold, or merges COMPRESSED rowgroups from where a large number of rows has been deleted. This improves the columnstore index quality over time.         
+> <a name="bckmergetsk"></a> Starting with [!INCLUDE[sql-server-2019](../../includes/sssql19-md.md)], [!INCLUDE[ssSDSfull](../../includes/sssdsfull-md.md)], and [!INCLUDE[ssSDSMIfull](../../includes/sssdsmifull-md.md)], the tuple-mover is helped by a background merge task that automatically compresses smaller OPEN delta rowgroups that have existed for some time as determined by an internal threshold, or merges COMPRESSED rowgroups from where a large number of rows has been deleted. This improves the columnstore index quality over time.         
 
 #### Column segment
 A column segment is a column of data from within the rowgroup.