Small bug fix.

analytics/operators/persystsql/PerSystSqlOperator.cpp

@@ -47,12 +47,13 @@
 #include "../../includes/UnitTemplate.h"
 
 int PerSystSqlOperator::_number_of_calls = 0;
+PerSystDB PerSystSqlOperator::persystdb;
 
 PerSystSqlOperator::PerSystSqlOperator(const std::string& name) :
 		OperatorTemplate(name), JobOperatorTemplate(name), _number_of_even_quantiles(
 				0), _severity_formula(NOFORMULA), _severity_threshold(0), _severity_exponent(
 				0), _severity_max_memory(0), _go_back_ns(0), _backend(DEFAULT), _scaling_factor(
-				1) {
+				1), _property_id(0) {
 }
 
 PerSystSqlOperator::~PerSystSqlOperator() {