# What is UpdatePipeline?
**URL:** https://discourse.paraview.org/t/what-is-updatepipeline/14158
**Category:** Development
**Created:** [March 14, 2024, 3:14pm UTC](https://discourse.paraview.org/t/what-is-updatepipeline/14158 "2024-03-14T15:14:21Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@joint](https://discourse.paraview.org/u/joint)
#### Post date: [March 14, 2024, 3:14pm UTC](https://discourse.paraview.org/t/what-is-updatepipeline/14158/1 "2024-03-14T15:14:21Z")
Hello everyone!
This documentation mentions UpdatePipeline in
> Consider a filter proxy, say `Clip` , which has an input set via a InputProperty and a implicit function set via a ProxyProperty. If either the input or the implicit function is modified, it is reasonable to expect the Clip filter to re-execute on an `UpdatePipeline` call. Whether the call will truly cause the VTK pipeline (server side) to execute is not that important. The pipeline may not re-execute and that’s not a big deal.
[https://kitware.github.io/paraview-docs/nightly/cxx/classvtkSMRepresentationProxy.html](https://kitware.github.io/paraview-docs/nightly/cxx/classvtkSMRepresentationProxy.html)
However source tree does not contain any entries of such a thing as UpdatePipeline
Could you clarify please what it is?
Thanks!
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [March 14, 2024, 3:15pm UTC](https://discourse.paraview.org/t/what-is-updatepipeline/14158/2 "2024-03-14T15:15:25Z")
[https://kitware.github.io/paraview-docs/nightly/cxx/classvtkSMRepresentationProxy.html#a1e4202f8eecc0cfd933d7ac6587eb725](https://kitware.github.io/paraview-docs/nightly/cxx/classvtkSMRepresentationProxy.html#a1e4202f8eecc0cfd933d7ac6587eb725)
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### Author:  [@joint](https://discourse.paraview.org/u/joint)
#### Post date: [March 14, 2024, 3:16pm UTC](https://discourse.paraview.org/t/what-is-updatepipeline/14158/3 "2024-03-14T15:16:24Z")
Holy cow!
Thanks