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Create Job 2 using other type of processing #5

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fronzec opened this issue Oct 27, 2022 · 0 comments

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fronzec commented Oct 27, 2022 •

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Create job 2
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read from table persons_v2, group by snapshot date and profession consider two altenatives, group using native query and group using SqlPagingQueryProviderFactoryBean https://keyholesoftware.com/2020/08/18/utilizing-spring-batch-for-large-dataset-summarization/
save grouped data on groups table
send group
update referenced id from groups id, use batch update to avoid massive updates
spring batch jobs https://github.com/spring-projects/spring-batch/tree/main/spring-batch-samples#multiline https://github.com/spring-projects/spring-batch/blob/main/spring-batch-samples/src/main/java/org/springframework/batch/sample/domain/multiline/AggregateItemReader.java#L55

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