Apache Tajo - COUNT()
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Let us now check count() function with the following query.
Query
sampledb> select count() from mytable;
Result
The above query will generate the following result.
?count ------------------------------- 10
The query returns the count of the total number of rows. The table contains 10 rows so, the count result is 10.
apache_tajo_aggregate_and_window_functions.htm
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