Range Locking - rebased on latest fb-mysql-8.0.20

mysql-test/suite/rocksdb/combinations

@@ -7,3 +7,6 @@ rocksdb_write_policy=write_prepared
 [write_unprepared]
 rocksdb_write_policy=write_unprepared
 rocksdb_write_batch_flush_threshold=1
+
+[range_locking]
+rocksdb_use_range_locking=1

mysql-test/suite/rocksdb/include/have_range_locking.inc

@@ -0,0 +1,3 @@
+if (`select count(*) = 0 from performance_schema.session_variables where variable_name = 'rocksdb_use_range_locking' and variable_value = 'ON';`) {
+  --skip Test requires range locking
+}

mysql-test/suite/rocksdb/include/not_range_locking.inc

@@ -0,0 +1,5 @@
+--let $_use_range_locking= `select @@rocksdb_use_range_locking`
+if ($_use_range_locking == 1)
+{
+  --skip Test doesn't support range locking
+}

mysql-test/suite/rocksdb/include/select_from_is_rowlocks.inc

@@ -0,0 +1,99 @@
+--echo # select * from information_schema.rocksdb_locks; # With replacements by select_from_is_rowlocks.inc
+#
+#  An include to print contents of I_S.ROCKSB_LOCKS
+#
+#   Implicit "parameters"
+#     - Currently it prints locks on t1.PRIMARY
+#
+#   Explicit "parameter" variables:
+#     - $TRX1_ID  - print this transaction as "TRX1"
+#     - $TRX2_ID  - print this transaction as "TRX2"
+# 
+#     - $select_from_is_rowlocks_current_trx_only
+#     - $order_by_rowkey
+#
+#     - $SECOND_INDEX_NAME
+
+--disable_query_log
+set @cf_id=(select column_family from information_schema.rocksdb_ddl
+            where table_name='t1' and index_name='PRIMARY');
+set @rtrx_id=(select transaction_id from information_schema.rocksdb_trx
+              where thread_id=connection_id());
+set @indexnr= (select lower(lpad(hex(index_number),8,'0')) from information_schema.rocksdb_ddl
+               where table_name='t1' and index_name='PRIMARY');
+
+set @indexnr_next= (select lower(lpad(hex(index_number+1),8,'0'))
+                    from information_schema.rocksdb_ddl
+                    where table_name='t1' and index_name='PRIMARY');
+
+let $extra_where = where 1;
+
+if ($select_from_is_rowlocks_current_trx_only) 
+{
+  let $extra_where = where transaction_id=(select transaction_id from information_schema.rocksdb_trx where connection_id()=thread_id);
+}
+
+## transaction column 
+
+# If TRX1_ID is not specified, get the current transaction:
+let $transaction_col= replace(transaction_id, @rtrx_id, "\$trx_id");
+if ($TRX1_ID)
+{
+  let $transaction_col = replace(transaction_id, '$TRX1_ID', "\$TRX1_ID");
+}
+
+if ($TRX2_ID)
+{
+  let $transaction_col = replace($transaction_col, '$TRX2_ID', "\$TRX2_ID");
+}
+
+## CF_ID column
+let $cf_id_col= column_family_id;
+
+if ($SECOND_INDEX_NAME)
+{
+  eval set @cf2_id=(select column_family from information_schema.rocksdb_ddl
+                    where table_name='t1' and index_name='$SECOND_INDEX_NAME');
+
+  let $cf_id_col= replace($cf_id_col, @cf2_id, "\$cf2_id");
+}
+let $cf_id_col= replace($cf_id_col, @cf_id, "\$cf_id");
+
+## KEY column
+let $key_col= (`key`);
+if ($SECOND_INDEX_NAME)
+{
+  eval set @indexnr2= (select lower(lpad(hex(index_number),8,'0'))
+                       from information_schema.rocksdb_ddl
+                       where table_name='t1' and index_name='$SECOND_INDEX_NAME');
+
+  eval set @indexnr2_next= (select lower(lpad(hex(index_number+1),8,'0'))
+                            from information_schema.rocksdb_ddl
+                            where table_name='t1' and index_name='$SECOND_INDEX_NAME');
+
+  let $key_col = replace($key_col, @indexnr2, '\${indexnr2}');
+  let $key_col = replace($key_col, @indexnr2_next, '\${indexnr2+1}');
+}
+
+let $key_col = replace($key_col, @indexnr, '\${indexnr}');
+let $key_col = replace($key_col, @indexnr_next, '\${indexnr+1}');
+
+## ORDER BY
+if ($order_by_rowkey)
+{
+  let $extra_order_by = ORDER BY 3,2;
+}
+
+if (!$order_by_rowkey)
+{
+  --sorted_result
+}
+
+eval select 
+  $cf_id_col as COLUMN_FAMILY_ID,
+  $transaction_col as TRANSACTION_ID,
+  $key_col as `KEY`,
+  mode
+from information_schema.rocksdb_locks $extra_where $extra_order_by;
+
+--enable_query_log