clintropolis commented on a change in pull request #11895:
URL: https://github.com/apache/druid/pull/11895#discussion_r745900585
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File path: docs/querying/segmentmetadataquery.md
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@@ -87,9 +87,11 @@ The format of the result is:
} ]
```
-Dimension columns will have type `STRING`, `FLOAT`, `DOUBLE`, or `LONG`.
-Metric columns will have type `FLOAT`, `DOUBLE`, or `LONG`, or the name of the
underlying complex type such as `hyperUnique` in case of COMPLEX metric.
-Timestamp column will have type `LONG`.
+All columns contain a `typeSignature` that Druid uses to represent the column
type information internally. The `typeSignature` is typically the same value
used to identify the JSON type information at query or ingest time. One of:
STRING`, `FLOAT`, `DOUBLE`, `LONG`, or `COMPLEX<typeName>`, e.g.
`COMPLEX<hyperUnique>`.
Review comment:
```suggestion
All columns contain a `typeSignature` that Druid uses to represent the
column type information internally. The `typeSignature` is typically the same
value used to identify the JSON type information at query or ingest time. One
of: `STRING`, `FLOAT`, `DOUBLE`, `LONG`, or `COMPLEX<typeName>`, e.g.
`COMPLEX<hyperUnique>`.
```
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