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docs: add note about path queries

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james
2020-04-23 20:30:28 +01:00
parent 9c12fa32e1
commit 5e87bc998e
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docs/language/learn-ql/cpp/dataflow.rst
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@@ -139,6 +139,10 @@ Global data flow
Global data flow tracks data flow throughout the entire program, and is therefore more powerful than local data flow. However, global data flow is less precise than local data flow, and the analysis typically requires significantly more time and memory to perform.
.. pull-quote:: Note
.. include:: ../../reusables/path-problem.rst
Using global data flow
~~~~~~~~~~~~~~~~~~~~~~

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docs/language/learn-ql/csharp/dataflow.rst
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@@ -137,6 +137,10 @@ Global data flow
Global data flow tracks data flow throughout the entire program, and is therefore more powerful than local data flow. However, global data flow is less precise than local data flow, and the analysis typically requires significantly more time and memory to perform.
.. pull-quote:: Note
.. include:: ../../reusables/path-problem.rst
Using global data flow
~~~~~~~~~~~~~~~~~~~~~~

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docs/language/learn-ql/java/dataflow.rst
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@@ -147,6 +147,10 @@ Global data flow
Global data flow tracks data flow throughout the entire program, and is therefore more powerful than local data flow. However, global data flow is less precise than local data flow, and the analysis typically requires significantly more time and memory to perform.
.. pull-quote:: Note
.. include:: ../../reusables/path-problem.rst
Using global data flow
~~~~~~~~~~~~~~~~~~~~~~

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docs/language/learn-ql/javascript/dataflow.rst
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@@ -188,6 +188,10 @@ Global data flow tracks data flow throughout the entire program, and is therefor
than local data flow. That is, the analysis may report spurious flows that cannot in fact happen. Moreover, global data flow analysis typically requires significantly
more time and memory than local analysis.
.. pull-quote:: Note
.. include:: ../../reusables/path-problem.rst
Using global data flow
~~~~~~~~~~~~~~~~~~~~~~

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docs/language/reusables/path-problem.rst Normal file
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You can model data flow paths in CodeQL by creating path queries. To view data flow paths generated by a path query in CodeQL for VS Code, you need to make sure that it has the correct metadata and ``select`` clause. For more information, see `Creating path queries <https://help.semmle.com/QL/learn-ql/writing-queries/path-queries.html>`__.