#coding:utf-8
#
# id:           bugs.core_0995
# title:        select with FIRST and LEFT JOIN needs excess SORT in plan
# decription:   
# tracker_id:   CORE-995
# min_versions: []
# versions:     3.0
# qmid:         bugs.core_995

import pytest
from firebird.qa import db_factory, isql_act, Action

# version: 3.0
# resources: None

substitutions_1 = []

init_script_1 = """
    recreate table orgaccount (id numeric(15,0));
    commit;
    recreate table org(
      id numeric(15,0) primary key using index pk_org,
      name varchar(1000)
    );
    
    recreate table orgaccount (
      id numeric(15,0) primary key using index pk_orgaccount,
      name varchar(1000),
      org_id numeric (15,0) not null references org using index fk_orgaccount
    );
    
    insert into org values (1, 'org1');
    insert into org values (2, 'org2');
    insert into org values (3, 'org3');
    insert into org values (4, 'org4');
    insert into org values (5, 'org5');
    insert into org values (6, 'org6');
    
    insert into orgaccount values (1, 'account1', 1);
    insert into orgaccount values (2, 'account2', 1);
    insert into orgaccount values (3, 'account3', 1);
    insert into orgaccount values (4, 'account4', 1);
    insert into orgaccount values (5, 'account5', 1);
    insert into orgaccount values (6, 'account6', 2);
    insert into orgaccount values (7, 'account7', 2);
    insert into orgaccount values (8, 'account8', 3);
    
    commit;
    set statistics index pk_org;
    set statistics index pk_orgaccount;
    set statistics index fk_orgaccount;
    commit;
  """

db_1 = db_factory(sql_dialect=3, init=init_script_1)

test_script_1 = """
    set planonly;

    -- testing plan for OUTER join:
    select first 10 *
    from orgaccount
    LEFT join org on org.id=orgaccount.org_id
    where orgaccount.id>4
    order by orgaccount.id;
    
    -- testing plan for INNER join:
    select first 10 *
    from orgaccount
    INNER join org on org.id=orgaccount.org_id
    where orgaccount.id>4
    order by orgaccount.id;
  """

act_1 = isql_act('db_1', test_script_1, substitutions=substitutions_1)

expected_stdout_1 = """
    PLAN JOIN (ORGACCOUNT ORDER PK_ORGACCOUNT, ORG INDEX (PK_ORG))
    PLAN JOIN (ORGACCOUNT ORDER PK_ORGACCOUNT, ORG INDEX (PK_ORG))
  """

@pytest.mark.version('>=3.0')
def test_1(act_1: Action):
    act_1.expected_stdout = expected_stdout_1
    act_1.execute()
    assert act_1.clean_expected_stdout == act_1.clean_stdout