MaxGekk opened a new pull request #30398:
URL: https://github.com/apache/spark/pull/30398
### What changes were proposed in this pull request?
1. Remove V2 logical node `ShowPartitionsStatement `, and replace it by V2
`ShowPartitions`.
2. Implement V2 execution node `ShowPartitionsExec` similar to V1
`ShowPartitionsCommand`.
### Why are the changes needed?
To have feature parity with Datasource V1.
### Does this PR introduce _any_ user-facing change?
Yes.
Before the change, `SHOW PARTITIONS` fails in V2 table catalogs with the
exception:
```
org.apache.spark.sql.AnalysisException: SHOW PARTITIONS is only supported
with v1 tables.
at
org.apache.spark.sql.catalyst.analysis.ResolveSessionCatalog.org$apache$spark$sql$catalyst$analysis$ResolveSessionCatalog$$parseV1Table(ResolveSessionCatalog.scala:628)
at
org.apache.spark.sql.catalyst.analysis.ResolveSessionCatalog$$anonfun$apply$1.applyOrElse(ResolveSessionCatalog.scala:466)
```
### How was this patch tested?
By running the following test suites:
1. Modified `ShowPartitionsParserSuite` where `ShowPartitionsStatement` is
replaced by V2 `ShowPartitions`.
2. `v2.ShowPartitionsSuite`
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