npawar commented on a change in pull request #5399:
URL: https://github.com/apache/incubator-pinot/pull/5399#discussion_r426924704
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File path:
pinot-core/src/main/java/org/apache/pinot/core/segment/creator/impl/SegmentColumnarIndexCreator.java
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@@ -362,12 +362,14 @@ private void writeMetadata()
properties.setProperty(DIMENSIONS, config.getDimensions());
properties.setProperty(METRICS, config.getMetrics());
properties.setProperty(DATETIME_COLUMNS, config.getDateTimeColumnNames());
- properties.setProperty(TIME_COLUMN_NAME, config.getTimeColumnName());
+ String timeColumnName = config.getTimeColumnName();
+ if (timeColumnName != null &&
!config.getSchema().getDateTimeNames().contains(timeColumnName)) {
Review comment:
Summarizing our offline discussion:
The second part was to avoid setting the time column name in
`segment.datetime.column.names` and also in `segment.time.column.name`, which
will happen if the primary time column is **dateTimeFieldSpec**. This happens
because `segment.time.column.name` is **serving as primary timeColumnName and
also as timeFieldSpec.** This worked well so far, because primary time column
and timeFieldSpec were one and the same.
But based on our chat, removing that check. As decided, the
`segment.time.column.name` property will serve as the primary time column name.
It will match with timecolumnName in tableConfig. It can be of type DATE_TIME
or TIME.
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