michalheld commented on code in PR #15193:
URL: https://github.com/apache/iceberg/pull/15193#discussion_r3016457414
##########
spark/v4.1/spark/src/main/java/org/apache/iceberg/spark/source/SparkScanBuilder.java:
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@@ -107,17 +109,30 @@ public class SparkScanBuilder extends BaseSparkScanBuilder
TimeTravel timeTravel,
CaseInsensitiveStringMap options) {
super(spark, table, schema, options);
- this.snapshot = snapshot;
this.branch = branch;
this.timeTravel = timeTravel;
if (Spark3Util.containsIncrementalOptions(options)) {
Preconditions.checkArgument(timeTravel == null, "Cannot use time travel
in incremental scan");
Pair<Long, Long> boundaries =
readConf().incrementalAppendScanBoundaries();
this.startSnapshotId = boundaries.first();
this.endSnapshotId = boundaries.second();
+ this.snapshot = snapshot;
} else {
this.startSnapshotId = null;
this.endSnapshotId = null;
+ Long sessionTimestamp = readConf().asOfTimestamp();
+ Preconditions.checkArgument(
+ timeTravel == null || sessionTimestamp == null,
+ "Cannot use both time travel and %s session property",
+ SparkSQLProperties.AS_OF_TIMESTAMP);
+ Preconditions.checkArgument(
+ branch == null || sessionTimestamp == null,
+ "Cannot use both branch and %s session property",
+ SparkSQLProperties.AS_OF_TIMESTAMP);
+ this.snapshot =
+ sessionTimestamp != null
+ ? table.snapshot(SnapshotUtil.snapshotIdAsOfTime(table,
sessionTimestamp))
+ : snapshot;
Review Comment:
moved old implementation to Spark 4.0. Spark 4.1 had a huge refactorization
and requires some alignment on how it should be added there.
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