vineetgarg02 commented on a change in pull request #990:
URL: https://github.com/apache/hive/pull/990#discussion_r414889422
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File path:
standalone-metastore/metastore-common/src/main/java/org/apache/hadoop/hive/metastore/HiveMetaStoreClient.java
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@@ -1941,6 +1941,45 @@ public boolean listPartitionsByExpr(String catName,
String db_name, String tbl_n
return !r.isSetHasUnknownPartitions() || r.isHasUnknownPartitions(); //
Assume the worst.
}
+ @Override
+ public boolean listPartitionsSpecByExpr(String dbName, String tblName,
+ byte[] expr, String defaultPartName, short maxParts, List<PartitionSpec>
result)
+ throws TException {
+ return listPartitionsSpecByExpr(getDefaultCatalog(conf), dbName, tblName,
expr, defaultPartName,
+ maxParts, result);
+ }
+
+ @Override
+ public boolean listPartitionsSpecByExpr(String catName, String dbName,
String tblName, byte[] expr,
+ String defaultPartitionName, short maxParts, List<PartitionSpec> result)
+ throws TException {
+ assert result != null;
+ PartitionsByExprRequest req = new PartitionsByExprRequest(
+ dbName, tblName, ByteBuffer.wrap(expr));
+ if (defaultPartitionName != null) {
+ req.setDefaultPartitionName(defaultPartitionName);
+ }
+ if (maxParts >= 0) {
+ req.setMaxParts(maxParts);
+ }
+ PartitionsSpecByExprResult r;
+ try {
+ r = client.get_partitions_spec_by_expr(req);
+ } catch (TApplicationException te) {
+ if (te.getType() != TApplicationException.UNKNOWN_METHOD
+ && te.getType() != TApplicationException.WRONG_METHOD_NAME) {
+ throw te;
+ }
+ throw new IncompatibleMetastoreException(
+ "Metastore doesn't support listPartitionsByExpr: " +
te.getMessage());
+ }
+
+ //TODO: filtering if client side filtering isClientFilterEnabled on
Review comment:
Yes metastore client provides an ability to have a filter hook
(configured using metastore.filter.hook), this can be used to filter partitions
on client side. Currently the default implementation doesn't filter anything
though so I decided to leave since it requires api for partitionspec instead of
partition.
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