Hello, I created a external non-partitioned table using Impala shell and inserted few rows into it using hive. While inserting, I can see basic stats like numRows, numFiles, size etc getting generated something like
Table tempdb_mani.mk_prod_inc1 stats: [numFiles=1, numRows=5, totalSize=614, rawDataSize=20] I can see the same stats in Impala-shell using show table stats command (after invalidate metadata command). Then, I renamed the table into mk_prod_inc2 using Impala shell and tried to look at the table stats using above command. Now, numRows is -1, whereas numFiles and size remains same (correct). Interestingly, this is not happening if the table type is INTERNAL. It is showing correct numRows even after RENAME. Also, It is not happening for Partitioned tables even if the type is EXTERNAL. Did anyone observed this behaviour? Thanks, Mani
