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Synapse/SynapseCCIGuidance/FindSmallCCITables.sql

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+SELECT   sm.name as [Schema_Name]
+,		 tb.[name]                    AS [logical_table_name]
+,        sum(rg.[total_rows])         AS [total_CCI_rows]
+FROM    sys.[schemas] sm
+JOIN    sys.[tables] tb               ON  sm.[schema_id]          = tb.[schema_id]
+JOIN    sys.[pdw_table_mappings] mp   ON  tb.[object_id]          = mp.[object_id]
+JOIN    sys.[pdw_nodes_tables] nt     ON  nt.[name]               = mp.[physical_name]
+JOIN    sys.[dm_pdw_nodes_db_column_store_row_group_physical_stats] rg      ON  rg.[object_id]     = nt.[object_id]
+			AND rg.[pdw_node_id]   = nt.[pdw_node_id]
+            AND rg.[distribution_id]    = nt.[distribution_id]
+GROUP BY sm.name, tb.name, rg.[object_id], index_id
+HAVING sum(rg.[total_rows]) < 60000000 -- Show only CCI tables with less than 60m records
+;
+
+-- https://docs.microsoft.com/en-us/azure/synapse-analytics/sql-data-warehouse/sql-data-warehouse-tables-index#optimizing-clustered-columnstore-indexes