jberragan commented on code in PR #206:
URL:
https://github.com/apache/cassandra-analytics/pull/206#discussion_r3660990407
##########
cassandra-analytics-core/src/main/spark3/org/apache/cassandra/spark/sparksql/CassandraScanBuilder.java:
##########
@@ -146,4 +190,30 @@ private PartitionKeyFilter buildFilter(List<String> keys)
AbstractMap.SimpleEntry<ByteBuffer, BigInteger> filterKey =
dataLayer.bridge().getPartitionKey(dataLayer.cqlTable(),
dataLayer.partitioner(), keys);
return PartitionKeyFilter.create(filterKey.getKey(),
filterKey.getValue());
}
+
+ @Override
+ public Statistics estimateStatistics()
+ {
+ OptionalLong estimatedSizeInBytes =
dataLayer.calculateTotalSSTableSize();
+ return new CassandraSourceStatistics(
+ estimatedSizeInBytes,
+ OptionalLong.empty(), // numRows - not calculated for now
+ Collections.emptyMap() // columnStats - empty for now
+ );
+ }
+
+ @Override
+ public CustomMetric[] supportedCustomMetrics()
Review Comment:
Nice!
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