fix: correct reverse-scan results affected by retry logic

Author: maochongxin

src/main/java/com/alipay/oceanbase/rpc/protocol/payload/impl/execute/query/AbstractQueryStreamResult.java

@@ -360,7 +360,7 @@ public boolean next() throws Exception {
     }
 
     protected Map<Long, ObPair<Long, ObTableParam>> buildPartitions(ObTableClient client, ObTableQuery tableQuery, String tableName) throws Exception {
-        Map<Long, ObPair<Long, ObTableParam>> partitionObTables = new HashMap<>();
+        Map<Long, ObPair<Long, ObTableParam>> partitionObTables = new LinkedHashMap<>();
         String indexName = tableQuery.getIndexName();
         String indexTableName = null;
 

src/main/java/com/alipay/oceanbase/rpc/table/ObTableClientQueryImpl.java

@@ -242,7 +242,7 @@ ObTableClientQueryAsyncStreamResult execute() throws Exception {
     }
 
     public Map<Long, ObPair<Long, ObTableParam>> initPartitions(ObTableQuery tableQuery, String tableName) throws Exception {
-        Map<Long, ObPair<Long, ObTableParam>> partitionObTables = new HashMap<>();
+        Map<Long, ObPair<Long, ObTableParam>> partitionObTables = new LinkedHashMap<>();
         String indexName = tableQuery.getIndexName();
         String indexTableName = null;