huleilei commented on code in PR #38007:
URL: https://github.com/apache/spark/pull/38007#discussion_r981984584
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sql/core/src/test/scala/org/apache/spark/sql/jdbc/JDBCV2Suite.scala:
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@@ -2635,6 +2635,10 @@ class JDBCV2Suite extends QueryTest with
SharedSparkSession with ExplainSuiteHel
val tableIndex = indexes2.head
assert(tableIndex.indexName() == "people_index")
+
+ val df = sql(s"SHOW INDEX ON TABLE h2.test.people")
+ checkAnswer(df, Seq(Row("people_index", "INDEX", Array("ID"), Map(),
Map())))
Review Comment:
The result about `SHOW INDEX`is :
```
+--------------+----------+----------+-----------------+----------+
| Index Name|Index Type| Columns|Column Properties|Properties|
+--------------+----------+----------+-----------------+----------+
|people_index_1| INDEX| [ID]| {}| {}|
+--------------+----------+----------+-----------------+----------+
```
Because in h2database, properties in `CREATE INDEX ` is not supported. So
the `columnsProperties` and `properties` are empty.
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