Respect Parquet Logical type when reading statistics

[Praveen2112]

Description

When reading statistics from FileMetadata we respect only the Trino type i.e when we map a parquet file having long decimal to a short decimal type in Trino we tend to read the statistics as short decimal type and we end up on skipping row groups when reading the data.

Additional context and related issues

Release notes

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## Hive, Iceberg, DeltaLake, Hudi
*  Fix skipping of row groups when the trino type is different from logical types in case of parquet files.({issue}`26203`)

[Praveen2112]

Thanks for the review. AC

[Copilot]

Pull Request Overview

This PR ensures that Parquet logical decimal types are respected when reading statistics, avoiding incorrect skipping of row groups when Trino and Parquet scales or precisions differ.

• Adds extensive tests covering short and long decimals with various annotations and underlying Parquet types.
• Extends TupleDomainParquetPredicate with helper methods (getShortDecimal, getLongDecimal) to correctly rescale statistics values according to logical annotations.
• Updates visibility of isDecimalRescaled and refactors statistics padding in tests.

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
lib/trino-parquet/src/test/java/io/trino/parquet/TestTupleDomainParquetPredicate.java	Adds new test cases for short/long decimal annotations and extends binaryColumnStats with padding
lib/trino-parquet/src/main/java/io/trino/parquet/reader/ColumnReaderFactory.java	Changes isDecimalRescaled from private to public to allow reuse
lib/trino-parquet/src/main/java/io/trino/parquet/predicate/TupleDomainParquetPredicate.java	Introduces getShortDecimal/getLongDecimal helpers and integrates logical type checks into statistics reading

Comments suppressed due to low confidence (2)

lib/trino-parquet/src/main/java/io/trino/parquet/reader/ColumnReaderFactory.java:333

• Consider reverting the visibility of isDecimalRescaled back to package-private (or moving it to a dedicated utility) to avoid unnecessarily expanding the public API surface.

    public static boolean isDecimalRescaled(DecimalLogicalTypeAnnotation decimalAnnotation, DecimalType trinoType)

lib/trino-parquet/src/main/java/io/trino/parquet/predicate/TupleDomainParquetPredicate.java:496

• [nitpick] Rename the parameter columnType to something like trinoType or expectedDecimalType to clarify that it represents the target Trino decimal type, not the column descriptor’s primitive type.

    private static long getShortDecimal(Object value, DecimalType columnType, ColumnDescriptor column)