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Diffstat (limited to 'examples/elementtree/optimized_al.py')
| -rw-r--r-- | examples/elementtree/optimized_al.py | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/examples/elementtree/optimized_al.py b/examples/elementtree/optimized_al.py index 1dbad0943..e13f5b0ee 100644 --- a/examples/elementtree/optimized_al.py +++ b/examples/elementtree/optimized_al.py @@ -1,7 +1,9 @@ -"""This script duplicates adjacency_list.py, but optimizes the loading -of XML nodes to be based on a "flattened" datamodel. Any number of XML documents, -each of arbitrary complexity, can be loaded in their entirety via a single query -which joins on only three tables. +"""Uses the same strategy as + ``adjacency_list.py``, but associates each DOM row with its owning + document row, so that a full document of DOM nodes can be loaded + using O(1) queries - the construction of the "hierarchy" is performed + after the load in a non-recursive fashion and is more + efficient. """ |