Renamed PRIMARY_KEY constraint of the VO_STATISTICS table

statistics/common_statistics_schema.sql

@@ -7,7 +7,7 @@ CREATE TABLE VO_STATISTICS (
   NB_COPY_NB_GT_1 UINT64TYPE CONSTRAINT VO_STATISTICS_NCNG1_NN NOT NULL,
   NB_COPY_NB_GT_1_IN_BYTES UINT64TYPE CONSTRAINT VO_STATISTICS_NCNG1IB_NN NOT NULL,
   UPDATE_TIME UINT64TYPE CONSTRAINT VO_STATISTICS_UT_NN NOT NULL,
-  CONSTRAINT VO_STATISTICS_VU_PK PRIMARY KEY(VO, UPDATE_TIME)
+  CONSTRAINT VO_STATISTICS_VO_UT_PK PRIMARY KEY(VO, UPDATE_TIME)
 );
 CREATE TABLE FILE_STATISTICS (
   NB_MASTER_FILES UINT64TYPE CONSTRAINT FILE_STATISTICS_NMF_NN NOT NULL,