A method may include generating, based on a tree structure representative of a request, a one-dimensional array representative of the request. The generating may include in response to the tree structure having a first node that corresponds to a section, inserting, into the one-dimensional array, a first element including a numerical value that corresponds to a quantity of children nodes descending from the first node. If the first node further includes the condition, a second element including a condition may be included into the one-dimensional array. If the tree structure includes a second node that corresponds to an object, a third element including the object may be inserted into the one-dimensional array. The request may be executed based on the one-dimensional array. Related systems and articles of manufacture are also provided.