Add transaction recovery regression tests

src/test/regress/expected/isolation_distributed_transaction_id.out

@@ -98,7 +98,7 @@ step s1-get-current-transaction-id:
 
 row            
 
-(0,186)        
+(0,189)        
 step s2-get-first-worker-active-transactions: 
 		SELECT * FROM run_command_on_workers('SELECT row(initiator_node_identifier, transaction_number)
 												FROM	 
@@ -109,4 +109,4 @@ step s2-get-first-worker-active-transactions:
 
 nodename       nodeport       success        result         
 
-localhost      57637          t              (0,186)        
+localhost      57637          t              (0,189)        

src/test/regress/expected/isolation_transaction_recovery.out

@@ -0,0 +1,22 @@
+Parsed test spec with 2 sessions
+
+starting permutation: s1-begin s1-recover s2-insert s1-commit
+create_reference_table
+
+               
+step s1-begin: 
+    BEGIN;
+
+step s1-recover: 
+    SELECT recover_prepared_transactions();
+
+recover_prepared_transactions
+
+0              
+step s2-insert: 
+    INSERT INTO test_transaction_recovery VALUES (1,2);
+ <waiting ...>
+step s1-commit: 
+    COMMIT;
+
+step s2-insert: <... completed>

src/test/regress/isolation_schedule

@@ -8,5 +8,5 @@ test: isolation_cluster_management
 test: isolation_dml_vs_repair isolation_copy_placement_vs_copy_placement isolation_cancellation
 test: isolation_concurrent_dml isolation_data_migration
 test: isolation_drop_shards isolation_copy_placement_vs_modification
-test: isolation_insert_vs_vacuum
+test: isolation_insert_vs_vacuum isolation_transaction_recovery
 test: isolation_distributed_transaction_id

src/test/regress/specs/isolation_transaction_recovery.spec

@@ -0,0 +1,37 @@
+setup
+{
+    CREATE TABLE test_transaction_recovery(column1 int, column2 int);
+    SELECT create_reference_table('test_transaction_recovery');
+}
+
+teardown
+{
+    DROP TABLE test_transaction_recovery;
+}
+
+session "s1"
+
+step "s1-begin"
+{
+    BEGIN;
+}
+
+step "s1-recover"
+{
+    SELECT recover_prepared_transactions();
+}
+
+step "s1-commit"
+{
+    COMMIT;
+}
+
+session "s2"
+
+step "s2-insert"
+{
+    INSERT INTO test_transaction_recovery VALUES (1,2);
+}
+
+# Recovery and 2PCs should block each other
+permutation "s1-begin" "s1-recover" "s2-insert" "s1-commit"