nsivabalan commented on issue #1225: [MINOR] Adding util methods to assist in adding deletion support to Quick Start URL: https://github.com/apache/incubator-hudi/pull/1225#issuecomment-574492697 @bhasudha : I have changed the way we wanna generate deletes. Basically I pass in insert records for which delete records will be generated. If we go with previous approach of generating random deletes, I couldn't verify if deletes actually deleted some records. So, have taken this approach. Steps I plan to add to Quick start is as follows - Generate a new batch of inserts. - Fetch all records from this new batch (// fix the rider value below since each batch will have unique rider value) val ds = spark.sql("select uuid, partitionPath from hudi_ro_table where rider = 'rider-213'") - Generate delete records val deletes = dataGen.generateDeletes(ds.collectAsList()) - Issue deletes val df = spark.read.json(spark.sparkContext.parallelize(deletes, 2)); df.write.format("org.apache.hudi"). options(getQuickstartWriteConfigs). option(OPERATION_OPT_KEY,"delete"). option(PRECOMBINE_FIELD_OPT_KEY, "ts"). option(RECORDKEY_FIELD_OPT_KEY, "uuid"). option(PARTITIONPATH_FIELD_OPT_KEY, "partitionpath"). option(TABLE_NAME, tableName). mode(Append). save(basePath); - Same select query above should fetch 0 records since all records have been deleted. spark.sql("select uuid, partitionPath from hudi_ro_table where rider = 'rider-213'").count()
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