siddharthteotia commented on a change in pull request #6914:
URL: https://github.com/apache/incubator-pinot/pull/6914#discussion_r632285805
##########
File path:
pinot-tools/src/main/resources/examples/batch/githubEvents/githubEvents_offline_complexTypeHandling_table_config.json
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@@ -0,0 +1,33 @@
+{
+ "tableName": "githubEvents",
+ "tableType": "OFFLINE",
+ "tenants": {
+ },
+ "segmentsConfig": {
+ "segmentPushType": "REFRESH",
+ "replication": "1",
+ "timeColumnName": "created_at_timestamp"
+ },
+ "tableIndexConfig": {
+ "loadMode": "MMAP"
+ },
+ "ingestionConfig": {
+ "transformConfigs": [
+ {
+ "columnName": "created_at_timestamp",
+ "transformFunction": "fromDateTime(created_at,
'yyyy-MM-dd''T''HH:mm:ss''Z''')"
+ },
+ {
+ "columnName": "payload_json",
+ "transformFunction": "jsonFormat(\"payload\")"
+ }
+ ],
+ "complexTypeConfig": {
+ "unnestFields": ["payload.commits"]
+ }
Review comment:
I understand that any collections to unnest can be configured. Assuming
payload is the name of a json/nested column, I was thinking of adding one
example demonstrating the complete flattening from the root level
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