samarthjain commented on a change in pull request #828: iceberg-spark changes
for vectorized reads
URL: https://github.com/apache/incubator-iceberg/pull/828#discussion_r390635024
##########
File path: spark/src/main/java/org/apache/iceberg/spark/source/Reader.java
##########
@@ -305,61 +342,74 @@ public Statistics estimateStatistics() {
@Override
public String toString() {
return String.format(
- "IcebergScan(table=%s, type=%s, filters=%s, caseSensitive=%s)",
- table, lazySchema().asStruct(), filterExpressions, caseSensitive);
+ "IcebergScan(table=%s, type=%s, filters=%s, caseSensitive=%s,
batchedReads=%s)",
+ table, lazySchema().asStruct(), filterExpressions, caseSensitive,
enableBatchRead);
}
- private static class ReadTask implements InputPartition<InternalRow>,
Serializable {
- private final CombinedScanTask task;
+ @SuppressWarnings("checkstyle:VisibilityModifier")
+ private static class BaseReadTask implements Serializable {
+ final CombinedScanTask task;
private final String tableSchemaString;
private final String expectedSchemaString;
- private final Broadcast<FileIO> io;
- private final Broadcast<EncryptionManager> encryptionManager;
- private final boolean caseSensitive;
- private final boolean localityPreferred;
+ final Broadcast<FileIO> io;
+ final Broadcast<EncryptionManager> encryptionManager;
+ final boolean caseSensitive;
private transient Schema tableSchema = null;
private transient Schema expectedSchema = null;
- private transient String[] preferredLocations;
- private ReadTask(CombinedScanTask task, String tableSchemaString, String
expectedSchemaString,
- Broadcast<FileIO> io, Broadcast<EncryptionManager>
encryptionManager,
- boolean caseSensitive, boolean localityPreferred) {
+ BaseReadTask(CombinedScanTask task, String tableSchemaString, String
expectedSchemaString,
Review comment:
I think 3 classes are still needed since we create different
`InputPartitionReader` for each version.
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