Update sql-data-warehouse-tables-index.md

Typo in the TSQL statement for the dbo.vColumnstoreDensity view creation

Author: giantdwarf7

articles/synapse-analytics/sql-data-warehouse/sql-data-warehouse-tables-index.md

@@ -126,7 +126,7 @@ SELECT
 ,       MAX(CASE WHEN rg.[State] = 3 THEN rg.[total_rows]     ELSE NULL END)    AS [COMPRESSED_rowgroup_rows_MAX]
 ,       AVG(CASE WHEN rg.[State] = 3 THEN rg.[total_rows]     ELSE NULL END)    AS [COMPRESSED_rowgroup_rows_AVG]
 ,       'ALTER INDEX ALL ON ' + s.name + '.' + t.NAME + ' REBUILD;'             AS [Rebuild_Index_SQL]
-FROM    sys.[sys.dm_pdw_nodes_db_column_store_row_group_physical_stats] rg
+FROM    sys.[dm_pdw_nodes_db_column_store_row_group_physical_stats] rg
 JOIN    sys.[pdw_nodes_tables] nt                   ON  rg.[object_id]          = nt.[object_id]
                                                     AND rg.[pdw_node_id]        = nt.[pdw_node_id]
                                                     AND rg.[distribution_id]    = nt.[distribution_id]