Add substring expression function documentation#12094
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Add documentation for four new Data Prepper expression functions: substringAfter, substringBefore, substringAfterLast, and substringBeforeLast. These functions extract portions of a string by delimiter and were added in opensearch-project/data-prepper#6621. Update the functions index page to include the new functions. Resolves: opensearch-project/data-prepper#6612 Signed-off-by: Nikhil Bagmar <nikhilbagmar73@gmail.com>
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graytaylor0
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Mar 13, 2026
Signed-off-by: Fanit Kolchina <kolchfa@amazon.com>
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Thank you, @bagmarnikhil! Doc review complete.
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* Add substring expression function documentation Add documentation for four new Data Prepper expression functions: substringAfter, substringBefore, substringAfterLast, and substringBeforeLast. These functions extract portions of a string by delimiter and were added in opensearch-project/data-prepper#6621. Update the functions index page to include the new functions. Resolves: opensearch-project/data-prepper#6612 Signed-off-by: Nikhil Bagmar <nikhilbagmar73@gmail.com> * Doc review Signed-off-by: Fanit Kolchina <kolchfa@amazon.com> --------- Signed-off-by: Nikhil Bagmar <nikhilbagmar73@gmail.com> Signed-off-by: Fanit Kolchina <kolchfa@amazon.com> Co-authored-by: Fanit Kolchina <kolchfa@amazon.com> (cherry picked from commit 08ff56d) Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
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…2094) * Add substring expression function documentation Add documentation for four new Data Prepper expression functions: substringAfter, substringBefore, substringAfterLast, and substringBeforeLast. These functions extract portions of a string by delimiter and were added in opensearch-project/data-prepper#6621. Update the functions index page to include the new functions. Resolves: opensearch-project/data-prepper#6612 Signed-off-by: Nikhil Bagmar <nikhilbagmar73@gmail.com> * Doc review Signed-off-by: Fanit Kolchina <kolchfa@amazon.com> --------- Signed-off-by: Nikhil Bagmar <nikhilbagmar73@gmail.com> Signed-off-by: Fanit Kolchina <kolchfa@amazon.com> Co-authored-by: Fanit Kolchina <kolchfa@amazon.com> Signed-off-by: Arya Soni <aryasoni98@gmail.com>
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Add documentation for four new Data Prepper expression functions: substringAfter, substringBefore, substringAfterLast, and substringBeforeLast. These functions extract portions of a string by delimiter and were added in opensearch-project/data-prepper#6621.
Update the functions index page to include the new functions.
Resolves: opensearch-project/data-prepper#6612
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