sirenbyte commented on code in PR #23577: URL: https://github.com/apache/beam/pull/23577#discussion_r1116006504
########## learning/tour-of-beam/learning-content/common-transforms/aggregation/count/description.md: ########## @@ -0,0 +1,311 @@ +<!-- +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at +http://www.apache.org/licenses/LICENSE-2.0 +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +--> + +# Count + +`Count` provides many transformations for calculating the count of values in a `PCollection`, either globally or for each key. + +{{if (eq .Sdk "go")}} +Counts the number of elements within each aggregation. The Count transform has two varieties: + +You can count the number of elements in ```PCollection``` with ```CountElms()```, it will return one element. Review Comment: Changed in all modules -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
