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commit 9408d1f7b5160c2f6f7fc9bfb6b0a76c75d82089 Author: Yueyang Qiu <robiny...@gmail.com> AuthorDate: Tue Jul 10 12:59:03 2018 -0700 Fix typos in programming guide --- src/documentation/programming-guide.md | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/src/documentation/programming-guide.md b/src/documentation/programming-guide.md index 091c130..4b55fcb 100644 --- a/src/documentation/programming-guide.md +++ b/src/documentation/programming-guide.md @@ -79,14 +79,14 @@ include: A typical Beam driver program works as follows: -* Create a `Pipeline` object and set the pipeline execution options, including +* **Create** a `Pipeline` object and set the pipeline execution options, including the Pipeline Runner. * Create an initial `PCollection` for pipeline data, either using the IOs to read data from an external storage system, or using a `Create` transform to build a `PCollection` from in-memory data. -* Apply **PTransforms** to each `PCollection`. Transforms can change, filter, +* **Apply** `PTransforms` to each `PCollection`. Transforms can change, filter, group, analyze, or otherwise process the elements in a `PCollection`. A - transform creates a new output `PCollection` *without consuming the input + transform creates a new output `PCollection` *without modifying the input collection*. A typical pipeline applies subsequent transforms to the each new output `PCollection` in turn until processing is complete. However, note that a pipeline does not have to be a single straight line of transforms applied @@ -1072,7 +1072,7 @@ If your input `PCollection` uses the default global windowing, the default behavior is to return a `PCollection` containing one item. That item's value comes from the accumulator in the combine function that you specified when applying `Combine`. For example, the Beam provided sum combine function returns -a zero value (the sum of an empty input), while the max combine function returns +a zero value (the sum of an empty input), while the min combine function returns a maximal or infinite value. To have `Combine` instead return an empty `PCollection` if the input is empty,