Support a case-sensitive column name for Apache Iceberg Rest Catalog

[ochanism]

I've been using Trino for querying the Apache iceberg table with the rest catalog.
When I queried the data with columns with the same name but different cases, it failed with Trino.
But there was no issue when I did it via Apahce Iceberg JAVA SDK.

Here is the Trino error.

java.lang.IllegalArgumentException: Multiple entries with same key: body=10:Body:varchar and body=8:body:varchar
	at com.google.common.collect.ImmutableMap.conflictException(ImmutableMap.java:382)
	at com.google.common.collect.ImmutableMap.checkNoConflict(ImmutableMap.java:376)
	at com.google.common.collect.RegularImmutableMap.checkNoConflictInKeyBucket(RegularImmutableMap.java:246)
	at com.google.common.collect.RegularImmutableMap.fromEntryArrayCheckingBucketOverflow(RegularImmutableMap.java:133)
	at com.google.common.collect.RegularImmutableMap.fromEntryArray(RegularImmutableMap.java:95)
	at com.google.common.collect.ImmutableMap$Builder.build(ImmutableMap.java:576)
	at com.google.common.collect.ImmutableMap$Builder.buildOrThrow(ImmutableMap.java:604)
	at io.trino.metadata.MetadataManager.getColumnHandles(MetadataManager.java:493)
	at io.trino.tracing.TracingMetadata.getColumnHandles(TracingMetadata.java:337)
	at io.trino.sql.analyzer.StatementAnalyzer$Visitor.visitTable(StatementAnalyzer.java:2299)
	at io.trino.sql.analyzer.StatementAnalyzer$Visitor.visitTable(StatementAnalyzer.java:522)
	at io.trino.sql.tree.Table.accept(Table.java:60)
	at io.trino.sql.tree.AstVisitor.process(AstVisitor.java:27)
	at io.trino.sql.analyzer.StatementAnalyzer$Visitor.process(StatementAnalyzer.java:541)
	at io.trino.sql.analyzer.StatementAnalyzer$Visitor.analyzeFrom(StatementAnalyzer.java:4879)
	at io.trino.sql.analyzer.StatementAnalyzer$Visitor.visitQuerySpecification(StatementAnalyzer.java:3074)
	at io.trino.sql.analyzer.StatementAnalyzer$Visitor.visitQuerySpecification(StatementAnalyzer.java:522)
	at io.trino.sql.tree.QuerySpecification.accept(QuerySpecification.java:155)
	at io.trino.sql.tree.AstVisitor.process(AstVisitor.java:27)
	at io.trino.sql.analyzer.StatementAnalyzer$Visitor.process(StatementAnalyzer.java:541)
	at io.trino.sql.analyzer.StatementAnalyzer$Visitor.process(StatementAnalyzer.java:549)
	at io.trino.sql.analyzer.StatementAnalyzer$Visitor.visitQuery(StatementAnalyzer.java:1565)
	at io.trino.sql.analyzer.StatementAnalyzer$Visitor.visitQuery(StatementAnalyzer.java:522)
	at io.trino.sql.tree.Query.accept(Query.java:118)
	at io.trino.sql.tree.AstVisitor.process(AstVisitor.java:27)
	at io.trino.sql.analyzer.StatementAnalyzer$Visitor.process(StatementAnalyzer.java:541)
	at io.trino.sql.analyzer.StatementAnalyzer.analyze(StatementAnalyzer.java:501)
	at io.trino.sql.analyzer.StatementAnalyzer.analyze(StatementAnalyzer.java:490)
	at io.trino.sql.analyzer.Analyzer.analyze(Analyzer.java:97)
	at io.trino.sql.analyzer.Analyzer.analyze(Analyzer.java:86)
	at io.trino.execution.SqlQueryExecution.analyze(SqlQueryExecution.java:274)
	at io.trino.execution.SqlQueryExecution.<init>(SqlQueryExecution.java:209)
	at io.trino.execution.SqlQueryExecution$SqlQueryExecutionFactory.createQueryExecution(SqlQueryExecution.java:850)
	at io.trino.dispatcher.LocalDispatchQueryFactory.lambda$createDispatchQuery$0(LocalDispatchQueryFactory.java:153)
	at io.trino.$gen.Trino_439____20240607_093903_2.call(Unknown Source)
	at com.google.common.util.concurrent.TrustedListenableFutureTask$TrustedFutureInterruptibleTask.runInterruptibly(TrustedListenableFutureTask.java:131)
	at com.google.common.util.concurrent.InterruptibleTask.run(InterruptibleTask.java:76)
	at com.google.common.util.concurrent.TrustedListenableFutureTask.run(TrustedListenableFutureTask.java:82)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
	at java.base/java.lang.Thread.run(Thread.java:1583)

Is there any plan to support a case-sensitive column name?

[ebyhr]

#17 is the plan for case sensitive identifiers.