comphead commented on code in PR #5049:
URL: https://github.com/apache/datafusion-comet/pull/5049#discussion_r3658392540


##########
docs/source/user-guide/latest/installation.md:
##########
@@ -166,6 +166,33 @@ CometNativeColumnarToRow
    +- CometNativeScan parquet [a#6] Batched: true, DataFilters: 
[isnotnull(a#6), (a#6 > 5)], Format: CometParquet, Location: 
InMemoryFileIndex(1 paths)[file:/tmp/test], PartitionFilters: [], 
PushedFilters: [IsNotNull(a), GreaterThan(a,5)], ReadSchema: struct<a:int>
 ```
 
+## Checking the Comet Version
+
+When the Comet plugin is loaded, it exposes its build version as the Spark 
config
+`spark.comet.version`. This can be queried at runtime from any supported 
language, for example:
+
+```scala
+scala> spark.conf.get("spark.comet.version")
+```
+
+```sql
+SET spark.comet.version;

Review Comment:
   I hardly can imagine scenarios for user to change comet version



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