Remove redundant tests on AO tables and savepoints.

These are already covered by the 'appendonly' and 'uao_dml/uao_dml' tests
in the main test suite.

src/test/tinc/tincrepo/dml/functional/expected/dml_ao_transaction_1.ans

--- @author prabhd
--- @created 2012-12-05 12:00:00
--- @modified 2012-12-05 12:00:00
--- @tags dml
--- @db_name dmldb
--- @description test: Insert on AO tables within transaction
-DROP TABLE IF EXISTS dml_ao;
-DROP TABLE
-BEGIN;
-BEGIN
-SAVEPOINT sp1;
-SAVEPOINT
-    DROP TABLE IF EXISTS dml_ao;
-psql:dml_ao_transaction_1.sql:11: NOTICE:  table "dml_ao" does not exist, skipping
-DROP TABLE
-    CREATE TABLE dml_ao (i int, x text,c char,v varchar, d date, n numeric, t timestamp without time zone, tz time with time zone) with(appendonly=true) distributed by (i) partition by range (i) (partition p1 start(1) end(5),partition p2 start(5) end(8), partition p3 start(8) end(10) );
-psql:dml_ao_transaction_1.sql:12: NOTICE:  CREATE TABLE will create partition "dml_ao_1_prt_p1" for table "dml_ao"
-psql:dml_ao_transaction_1.sql:12: NOTICE:  CREATE TABLE will create partition "dml_ao_1_prt_p2" for table "dml_ao"
-psql:dml_ao_transaction_1.sql:12: NOTICE:  CREATE TABLE will create partition "dml_ao_1_prt_p3" for table "dml_ao"
-CREATE TABLE
-SAVEPOINT sp2;
-SAVEPOINT
-    INSERT INTO dml_ao values (1,'to be exchanged','a','partition table','12-11-2012',3,'2012-10-09 10:23:54', '2011-08-19 10:23:54+02');
-INSERT 0 1
-ROLLBACK to sp2;
-ROLLBACK
-    INSERT INTO dml_ao values (1,'exchanged','a','partition table','12-11-2012',3,'2012-10-09 10:23:54', '2011-08-19 10:23:54+02');
-INSERT 0 1
-RELEASE SAVEPOINT sp1;
-RELEASE
-COMMIT;
-COMMIT
-SELECT COUNT(*) FROM dml_ao;
- count 
--------
-     1
-(1 row)
-
-SELECT x FROM dml_ao;
-     x     
------------
- exchanged
-(1 row)
-

src/test/tinc/tincrepo/dml/functional/expected/dml_ao_transaction_2.ans

--- @author prabhd
--- @created 2012-12-05 12:00:00
--- @modified 2012-12-05 12:00:00
--- @tags dml
--- @db_name dmldb
--- @description test: Negative test - Update on AO tables within transaction
-DROP TABLE IF EXISTS dml_ao;
-DROP TABLE
-BEGIN;
-BEGIN
-SAVEPOINT sp1;
-SAVEPOINT
-    DROP TABLE IF EXISTS dml_ao;
-psql:dml_ao_transaction_2.sql:11: NOTICE:  table "dml_ao" does not exist, skipping
-DROP TABLE
-    CREATE TABLE dml_ao (i int, x text,c char,v varchar, d date, n numeric, t timestamp without time zone, tz time with time zone) with(appendonly=true) distributed by (i) partition by range (i) (partition p1 start(1) end(5),partition p2 start(5) end(8), partition p3 start(8) end(10) );
-psql:dml_ao_transaction_2.sql:12: NOTICE:  CREATE TABLE will create partition "dml_ao_1_prt_p1" for table "dml_ao"
-psql:dml_ao_transaction_2.sql:12: NOTICE:  CREATE TABLE will create partition "dml_ao_1_prt_p2" for table "dml_ao"
-psql:dml_ao_transaction_2.sql:12: NOTICE:  CREATE TABLE will create partition "dml_ao_1_prt_p3" for table "dml_ao"
-CREATE TABLE
-    INSERT INTO dml_ao values (7,'to be exchanged','s','partition table','12-11-2012',3,'2012-10-09 10:23:54', '2011-08-19 10:23:54+02');
-INSERT 0 1
-SAVEPOINT sp2;
-SAVEPOINT
-    UPDATE dml_ao SET x = 'update_ao';
-UPDATE 1
-RELEASE SAVEPOINT sp2;
-RELEASE
-RELEASE SAVEPOINT sp1;
-RELEASE
-COMMIT;
-COMMIT
-SELECT COUNT(*) FROM dml_ao;
- count 
--------
-     1
-(1 row)
-
-SELECT x FROM dml_ao;
-     x     
------------
- update_ao
-(1 row)
-

src/test/tinc/tincrepo/dml/functional/expected/dml_ao_transaction_3.ans

--- @author prabhd
--- @created 2012-12-05 12:00:00
--- @modified 2012-12-05 12:00:00
--- @tags dml
--- @db_name dmldb
--- @description test: Negative test - Delete on AO tables within transaction
-DROP TABLE IF EXISTS dml_ao;
-DROP TABLE
-BEGIN;
-BEGIN
-SAVEPOINT sp1;
-SAVEPOINT
-    DROP TABLE IF EXISTS dml_ao;
-psql:dml_ao_transaction_3.sql:11: NOTICE:  table "dml_ao" does not exist, skipping
-DROP TABLE
-    CREATE TABLE dml_ao (i int, x text,c char,v varchar, d date, n numeric, t timestamp without time zone, tz time with time zone) with(appendonly=true) distributed by (i) partition by range (i) (partition p1 start(1) end(5),partition p2 start(5) end(8), partition p3 start(8) end(10) );
-psql:dml_ao_transaction_3.sql:12: NOTICE:  CREATE TABLE will create partition "dml_ao_1_prt_p1" for table "dml_ao"
-psql:dml_ao_transaction_3.sql:12: NOTICE:  CREATE TABLE will create partition "dml_ao_1_prt_p2" for table "dml_ao"
-psql:dml_ao_transaction_3.sql:12: NOTICE:  CREATE TABLE will create partition "dml_ao_1_prt_p3" for table "dml_ao"
-CREATE TABLE
-    INSERT INTO dml_ao values(generate_series(1,9),'create table with subtransactions','s','subtransaction table','12-11-2012',3,'2012-10-09 10:23:54', '2011-08-19 10:23:54+02');
-INSERT 0 9
-SAVEPOINT sp2;
-SAVEPOINT
-    DELETE FROM dml_ao;
-DELETE 9
-RELEASE SAVEPOINT sp2;
-RELEASE
-RELEASE SAVEPOINT sp1;
-RELEASE
-COMMIT;
-COMMIT
-SELECT COUNT(*) FROM dml_ao;
- count 
--------
-     0
-(1 row)
-
-SELECT x FROM dml_ao;
- x 
----
-(0 rows)
-

src/test/tinc/tincrepo/dml/functional/sql/dml_ao_transaction_1.sql

--- @author prabhd
--- @created 2012-12-05 12:00:00
--- @modified 2012-12-05 12:00:00
--- @tags dml
--- @db_name dmldb
--- @description test: Insert on AO tables within transaction
-\echo --start_ignore
-set gp_enable_column_oriented_table=on;
-\echo --end_ignore
-
-DROP TABLE IF EXISTS dml_ao;
-BEGIN;
-SAVEPOINT sp1;
-    DROP TABLE IF EXISTS dml_ao;
-    CREATE TABLE dml_ao (i int, x text,c char,v varchar, d date, n numeric, t timestamp without time zone, tz time with time zone) with(appendonly=true) distributed by (i) partition by range (i) (partition p1 start(1) end(5),partition p2 start(5) end(8), partition p3 start(8) end(10) );
-SAVEPOINT sp2;
-    INSERT INTO dml_ao values (1,'to be exchanged','a','partition table','12-11-2012',3,'2012-10-09 10:23:54', '2011-08-19 10:23:54+02');
-ROLLBACK to sp2;
-    INSERT INTO dml_ao values (1,'exchanged','a','partition table','12-11-2012',3,'2012-10-09 10:23:54', '2011-08-19 10:23:54+02');
-RELEASE SAVEPOINT sp1;
-COMMIT;
-
-SELECT COUNT(*) FROM dml_ao;
-SELECT x FROM dml_ao;

src/test/tinc/tincrepo/dml/functional/sql/dml_ao_transaction_2.sql

--- @author prabhd
--- @created 2012-12-05 12:00:00
--- @modified 2012-12-05 12:00:00
--- @tags dml
--- @db_name dmldb
--- @description test: Negative test - Update on AO tables within transaction
-\echo --start_ignore
-set gp_enable_column_oriented_table=on;
-\echo --end_ignore
-
-DROP TABLE IF EXISTS dml_ao;
-BEGIN;
-SAVEPOINT sp1;
-    DROP TABLE IF EXISTS dml_ao;
-    CREATE TABLE dml_ao (i int, x text,c char,v varchar, d date, n numeric, t timestamp without time zone, tz time with time zone) with(appendonly=true) distributed by (i) partition by range (i) (partition p1 start(1) end(5),partition p2 start(5) end(8), partition p3 start(8) end(10) );
-    INSERT INTO dml_ao values (7,'to be exchanged','s','partition table','12-11-2012',3,'2012-10-09 10:23:54', '2011-08-19 10:23:54+02');
-SAVEPOINT sp2;
-    UPDATE dml_ao SET x = 'update_ao';
-RELEASE SAVEPOINT sp2;
-RELEASE SAVEPOINT sp1;
-COMMIT;
-
-SELECT COUNT(*) FROM dml_ao;
-SELECT x FROM dml_ao;
-

src/test/tinc/tincrepo/dml/functional/sql/dml_ao_transaction_3.sql

--- @author prabhd
--- @created 2012-12-05 12:00:00
--- @modified 2012-12-05 12:00:00
--- @tags dml
--- @db_name dmldb
--- @description test: Negative test - Delete on AO tables within transaction
-\echo --start_ignore
-set gp_enable_column_oriented_table=on;
-\echo --end_ignore
-
-DROP TABLE IF EXISTS dml_ao;
-BEGIN;
-SAVEPOINT sp1;
-    DROP TABLE IF EXISTS dml_ao;
-    CREATE TABLE dml_ao (i int, x text,c char,v varchar, d date, n numeric, t timestamp without time zone, tz time with time zone) with(appendonly=true) distributed by (i) partition by range (i) (partition p1 start(1) end(5),partition p2 start(5) end(8), partition p3 start(8) end(10) );
-    INSERT INTO dml_ao values(generate_series(1,9),'create table with subtransactions','s','subtransaction table','12-11-2012',3,'2012-10-09 10:23:54', '2011-08-19 10:23:54+02');
-SAVEPOINT sp2;
-    DELETE FROM dml_ao;
-RELEASE SAVEPOINT sp2;
-RELEASE SAVEPOINT sp1;
-COMMIT;
-
-SELECT COUNT(*) FROM dml_ao;
-SELECT x FROM dml_ao;
-