fix staticcheck suggestions

params.go

@@ -12,11 +12,9 @@ func ReadParams(input string) []string {
 	params := []string{}
 
 	matches := paramRegexp.FindAllStringSubmatch(input, -1)
-	if matches != nil {
 	for _, match := range matches {
 		params = append(params, match[1])
 	}
-	}
 
 	return params
 }

query.go

@@ -57,20 +57,16 @@ func (query *Query) Bind(name string, value any) *Query {
 
 // BindMap assigns values to bind parameters.
 func (query *Query) BindMap(params map[string]any) *Query {
-	if params != nil {
 	for name, value := range params {
 		query.Params[name] = value
 	}
-	}
 	return query
 }
 
 // Copy creates a copy of the query.
 func (query *Query) Copy() *Query {
 	newQuery := NewQuery()
-	for _, line := range query.Lines {
+	newQuery.Lines = append(newQuery.Lines, query.Lines...)
-		newQuery.Lines = append(newQuery.Lines, line)
-	}
 	for name, value := range query.Params {
 		newQuery.Params[name] = value
 	}