hsiang-c commented on code in PR #1920:
URL: https://github.com/apache/datafusion-comet/pull/1920#discussion_r2167786141
##########
common/src/main/java/org/apache/comet/parquet/FileReader.java:
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@@ -209,6 +257,55 @@ public void setRequestedSchema(List<ColumnDescriptor>
projection) {
}
}
+ /** This method is called from Apache Iceberg. */
+ public void setRequestedSchemaFromSpecs(List<ParquetColumnSpec> specList) {
+ paths.clear();
+ for (ParquetColumnSpec colSpec : specList) {
+ ColumnDescriptor descriptor = Utils.buildColumnDescriptor(colSpec);
+ paths.put(ColumnPath.get(colSpec.getPath()), descriptor);
+ }
+ }
+
+ private static ParquetReadOptions buildParquetReadOptions(
+ Configuration conf,
+ Map<String, String> properties,
+ Long start,
+ Long length,
+ byte[] fileEncryptionKey,
+ byte[] fileAADPrefix) {
+
+ Collection<String> readPropertiesToRemove =
+ Sets.newHashSet(
+ "parquet.read.filter",
Review Comment:
Could we use these constants since they are not in the method signature?
```java
ParquetInputFormat.UNBOUND_RECORD_FILTER,
ParquetInputFormat.FILTER_PREDICATE,
ParquetInputFormat.READ_SUPPORT_CLASS,
EncryptionPropertiesFactory.CRYPTO_FACTORY_CLASS_PROPERTY_NAME
```
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