satishkotha commented on a change in pull request #847:
URL: https://github.com/apache/parquet-mr/pull/847#discussion_r552980150
##########
File path:
parquet-tools/src/main/java/org/apache/parquet/tools/command/MergeCommand.java
##########
@@ -46,19 +47,34 @@
" <output> is the destination parquet file"
};
- private static final String DEFAULT_KEY_VALUE_MERGE_STRATEGY =
StrictKeyValueMetadataMergeStrategy.class.getName();
+ private static enum MergeStrategy {
+ STRICT,
+ CONCAT,
+ CUSTOM,
+ }
+
public static final Options OPTIONS;
static {
OPTIONS = new Options();
Option mergeStrategy = Option.builder("s")
.longOpt("mergeStrategy")
.desc("Strategy to merge (key, value) pairs in metadata if there are
multiple values for same key " +
- "(default: " + DEFAULT_KEY_VALUE_MERGE_STRATEGY + ")")
+ "(default: " + MergeStrategy.STRICT + "). You can provide your custom
implementation by specifying " +
Review comment:
Ok. Done.
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