aokolnychyi commented on a change in pull request #631: Add mechanism to expire
old metadata versions
URL: https://github.com/apache/incubator-iceberg/pull/631#discussion_r346426537
##########
File path: core/src/main/java/org/apache/iceberg/TableMetadata.java
##########
@@ -182,7 +230,17 @@ public String toString() {
}
last = logEntry;
}
-
+ this.previousMetadata = previousMetadata;
+ MetadataLogEntry previous = null;
+ for (MetadataLogEntry metadataEntry : previousMetadata) {
+ if (previous != null) {
+ Preconditions.checkArgument(
+ (metadataEntry.timestampMillis() - previous.timestampMillis())
>= 0,
+ "[BUG] Expected sorted previous metadata log entries.");
+ }
+ previous = metadataEntry;
+ }
+ this.removedPreviousMetadata = removedPreviousMetadata;
Review comment:
I like the current structure of the constructor in `TableMetadata`: it
starts with a block of assignments, followed by a block of indexing, and ends
with a block of validation. Can we keep that structure?
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