The int val for query evaluation is int64 (VCL INTs also 64 bit).

pkg/log/query_parser.go

@@ -79,7 +79,7 @@ const (
 
 type qRHS struct {
 	strVal   []byte
-	intVal   int
+	intVal   int64
 	floatVal float64
 	regex    *regexp.Regexp
 	rhsType  rhsType
@@ -256,7 +256,7 @@ func (parser *qParser) parseNum(intOnly bool) (qRHS, error) {
 		return rhs, parser.err("Integer parse error")
 	}
 	rhs.rhsType = integer
-	rhs.intVal = n
+	rhs.intVal = int64(n)
 	if err := parser.advToken(); err != nil {
 		return rhs, err
 	}

pkg/log/query_parser_test.go

@@ -44,7 +44,7 @@ type expLHS struct {
 
 type expRHS struct {
 	str      string
-	intVal   int
+	intVal   int64
 	floatVal float64
 	rhsType  rhsType
 }