set m_read_opts.ignore_range_deletions properly (percona#1218)

Upstream commit ID: facebook/mysql-5.6@238afbb
PS-8494: Merge percona-202206 (https://jira.percona.com/browse/PS-8494)

Summary:
ignore_range_deletions should be set to true when range del is not enabled

Pull Request resolved: facebook/mysql-5.6#1218

Reviewed By: Pushapgl

Differential Revision: D39115879

Pulled By: yoshinorim

fbshipit-source-id: 40e7bcb86590c8f9be44dfa3f74277fb3f49a6d5

Author: rockeet

storage/rocksdb/ha_rocksdb.cc

@@ -4042,7 +4042,10 @@ class Rdb_transaction {
   }
 
   explicit Rdb_transaction(THD *const thd)
-      : m_thd(thd), m_tbl_io_perf(nullptr) {}
+      : m_thd(thd), m_tbl_io_perf(nullptr) {
+    m_read_opts.ignore_range_deletions =
+        !rocksdb_enable_delete_range_for_drop_index;
+  }
 
   virtual ~Rdb_transaction() {
 #ifndef DEBUG_OFF
@@ -4409,6 +4412,8 @@ class Rdb_transaction_impl : public Rdb_transaction {
     m_rocksdb_reuse_tx = nullptr;
 
     m_read_opts = rocksdb::ReadOptions();
+    m_read_opts.ignore_range_deletions =
+        !rocksdb_enable_delete_range_for_drop_index;
 
     set_initial_savepoint();
 
@@ -4520,6 +4525,8 @@ class Rdb_writebatch_impl : public Rdb_transaction {
   void reset() {
     m_batch->Clear();
     m_read_opts = rocksdb::ReadOptions();
+    m_read_opts.ignore_range_deletions =
+        !rocksdb_enable_delete_range_for_drop_index;
     m_ddl_transaction = false;
   }