Invert STDEV and STDEVP as they are the default in Crate is STDEVP

Author: surister

cratedb_jdbc/dialect.tdd

@@ -726,13 +726,12 @@
             <argument type='date'/>
         </function>
         <function group='aggregate' name='STDEV' return-type='real'>
-            <formula>STDDEV(%1)</formula>
+            <formula>STDDEV(%1) * sqrt(count(%1) / (count(%1) - 1.0))</formula>
             <unagg-formula>NULL</unagg-formula>
             <argument type='real'/>
         </function>
         <function group='aggregate' name='STDEVP' return-type='real'>
-            <formula>(CASE WHEN COUNT(%1) = 1 THEN 0.0 WHEN COUNT(%1) &gt; 0 THEN (STDDEV(%1) * SQRT(COUNT(%1) - 1) /
-                SQRT(COUNT(%1)) ) ELSE NULL END)
+            <formula>(CASE WHEN COUNT(%1) = 1 THEN 0.0 WHEN COUNT(%1) &gt; 0 THEN STDDEV(%1) ELSE NULL END)
             </formula>
             <unagg-formula>(CASE WHEN %1 IS NULL THEN NULL ELSE 0.0 END)</unagg-formula>
             <argument type='real'/>