Handle empty Iceberg tables while executing procedures

[alexjo2144]

Description

If a table was just created it may not contain any snapshots. Procedures run on tables that do not contain any snapshots can safely do nothing.

Is this change a fix, improvement, new feature, refactoring, or other?

Fix

Is this a change to the core query engine, a connector, client library, or the SPI interfaces? (be specific)

Iceberg connector

How would you describe this change to a non-technical end user or system administrator?

Prevent query failure in the edge case where a table is empty and has no history.

Related issues, pull requests, and links

Related to: #13576

Documentation

(x) No documentation is needed.
( ) Sufficient documentation is included in this PR.
( ) Documentation PR is available with #prnumber.
( ) Documentation issue #issuenumber is filed, and can be handled later.

Release notes

( ) No release notes entries required.
(x) Release notes entries required with the following suggested text:

# Iceberg
* Fix execution of `optimize`, `expire_snapshots`, and `remove_orphan_files` procedures against tables which have empty snapshot histories.

[ebyhr]

remove_orphan_files procedure still fails on file metastore due to lack of /data directory. Could you leave a TODO comment?

[findepi]

Why would it be specific to the TESTING_FILE_METASTORE?

[alexjo2144]

Do you have a stack trace?

[ebyhr]

The query and stacktrace:

trino:tpch> CREATE TABLE test (c1 int);
trino:tpch> ALTER TABLE test EXECUTE remove_orphan_files(retention_threshold => '7d');

Query 20220810_221426_00026_hjz7i failed: Failed accessing data for table: tpch.test
io.trino.spi.TrinoException: Failed accessing data for table: tpch.test
	at io.trino.plugin.iceberg.IcebergMetadata.scanAndDeleteInvalidFiles(IcebergMetadata.java:1255)
	at io.trino.plugin.iceberg.IcebergMetadata.removeOrphanFiles(IcebergMetadata.java:1215)
	at io.trino.plugin.iceberg.IcebergMetadata.executeRemoveOrphanFiles(IcebergMetadata.java:1198)
	at io.trino.plugin.iceberg.IcebergMetadata.executeTableExecute(IcebergMetadata.java:1116)
	at io.trino.plugin.base.classloader.ClassLoaderSafeConnectorMetadata.executeTableExecute(ClassLoaderSafeConnectorMetadata.java:216)
	at io.trino.metadata.MetadataManager.executeTableExecute(MetadataManager.java:345)
	at io.trino.operator.SimpleTableExecuteOperator.getOutput(SimpleTableExecuteOperator.java:128)
	at io.trino.operator.Driver.processInternal(Driver.java:410)
	at io.trino.operator.Driver.lambda$process$10(Driver.java:313)
	at io.trino.operator.Driver.tryWithLock(Driver.java:698)
	at io.trino.operator.Driver.process(Driver.java:305)
	at io.trino.operator.Driver.processForDuration(Driver.java:276)
	at io.trino.execution.SqlTaskExecution$DriverSplitRunner.processFor(SqlTaskExecution.java:740)
	at io.trino.execution.executor.PrioritizedSplitRunner.process(PrioritizedSplitRunner.java:164)
	at io.trino.execution.executor.TaskExecutor$TaskRunner.run(TaskExecutor.java:490)
	at io.trino.$gen.Trino_testversion____20220810_221353_71.run(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
	at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: java.io.FileNotFoundException: File /var/folders/8s/dkvf18z55lj_9yxhy1n54sph0000gn/T/TrinoTest1711210759979949419/iceberg_data/tpch/test-b3dc0ba83a6542229b672271f21d09eb/data does not exist
	at org.apache.hadoop.fs.RawLocalFileSystem.listStatus(RawLocalFileSystem.java:489)
	at org.apache.hadoop.fs.FileSystem.listStatus(FileSystem.java:1868)
	at org.apache.hadoop.fs.FileSystem.listStatus(FileSystem.java:1910)
	at org.apache.hadoop.fs.FileSystem$4.<init>(FileSystem.java:2072)
	at org.apache.hadoop.fs.FileSystem.listLocatedStatus(FileSystem.java:2071)
	at org.apache.hadoop.fs.ChecksumFileSystem.listLocatedStatus(ChecksumFileSystem.java:700)
	at org.apache.hadoop.fs.FileSystem$5.<init>(FileSystem.java:2183)
	at org.apache.hadoop.fs.FileSystem.listFiles(FileSystem.java:2180)
	at io.trino.plugin.hive.fs.TrinoFileSystemCache$FileSystemWrapper.listFiles(TrinoFileSystemCache.java:386)
	at io.trino.plugin.iceberg.IcebergMetadata.scanAndDeleteInvalidFiles(IcebergMetadata.java:1239)
	... 18 more

[alexjo2144]

All set, thanks for the reviews

[findepi]

@alexjo2144 can you please suggest RN wording?

[alexjo2144]

CI hit #13556

[alexjo2144]

@findepi added a suggestion to the PR description