marton-bod commented on code in PR #3222:
URL: https://github.com/apache/hive/pull/3222#discussion_r853924951
##########
iceberg/iceberg-handler/src/main/java/org/apache/iceberg/mr/mapreduce/IcebergInputFormat.java:
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@@ -207,6 +218,39 @@ public RecordReader<Void, T> createRecordReader(InputSplit
split, TaskAttemptCon
return new IcebergRecordReader<>();
}
+ private static TableScan scanWithTimeRange(Table table, Configuration conf,
TableScan scan, long fromTime) {
+ // let's find the corresponding snapshot ID - if the fromTime is before
the table creation happened, let's use
+ // the first snapshot of the table
+ long fromSnapshot = IcebergTableUtil.findSnapshotForTimestamp(table,
fromTime)
+ .orElseGet(() -> table.history().get(0).snapshotId());
+ if (fromSnapshot == table.currentSnapshot().snapshotId()) {
+ throw new IllegalArgumentException(
+ "Provided FROM timestamp must be earlier than the latest snapshot of
the table.");
+ }
+ long toTime = conf.getLong(InputFormatConfig.TO_TIMESTAMP, -1);
+ if (toTime != -1) {
+ if (fromTime >= toTime) {
+ throw new IllegalArgumentException(
+ "Provided FROM timestamp must precede the provided TO timestamp.");
+ }
+ long toSnapshot = IcebergTableUtil.findSnapshotForTimestamp(table,
toTime)
+ .orElseThrow(() -> new IllegalArgumentException(
+ "Provided TO timestamp must be after the first snapshot of the
table."));
+ return scan.appendsBetween(fromSnapshot, toSnapshot);
+ } else {
+ return scan.appendsAfter(fromSnapshot);
+ }
+ }
+
+ private static TableScan scanWithVersionRange(Configuration conf, TableScan
scan, long fromSnapshot) {
+ long toSnapshot = conf.getLong(InputFormatConfig.TO_VERSION, -1);
Review Comment:
Sure
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