#coding:utf-8

"""
ID:          issue-2965
ISSUE:       2965
TITLE:       CI column does not group correctly with a second column
DESCRIPTION:
JIRA:        CORE-2555
FBTEST:      bugs.core_2555
"""

import pytest
from firebird.qa import *

db = db_factory(charset='UTF8')

test_script = """
    recreate table test(
         rk char(1) character set none
        ,ca varchar(10) character set utf8 collate unicode_ci_ai
        ,cb varchar(10) character set utf8 collate unicode_ci
		,id int generated by default as identity constraint pk_test primary key using index pk_test
    );
    commit;

    -- Letters from latin-1 with diacritic marks: http://en.wikipedia.org/wiki/ISO/IEC_8859-1
    insert into test(rk, ca, cb) values('d',  'ð',  'd');
    insert into test(rk, ca, cb) values('d',  'Ð',  'd');
    insert into test(rk, ca, cb) values('d',  'Ð',  'D');
    insert into test(rk, ca, cb) values('d',  'd',  'd');

    insert into test(rk, ca, cb) values('l',  'l',  'Ł');
    insert into test(rk, ca, cb) values('l',  'ł',  'ł');

    insert into test(rk, ca, cb) values('o',  'Ø',  'õ');
    insert into test(rk, ca, cb) values('o',  'o',  'Õ');
    insert into test(rk, ca, cb) values('o',  'Ó',  'Õ');
    insert into test(rk, ca, cb) values('o',  'õ',  'Õ');
    insert into test(rk, ca, cb) values('o',  'Ö',  'õ');

    insert into test(rk, ca, cb) values('a', 'Ą',  'ä');
    insert into test(rk, ca, cb) values('a', 'Á',  'Ä');
    insert into test(rk, ca, cb) values('a', 'à',  'ä');
    insert into test(rk, ca, cb) values('a', 'â',  'ä');

    insert into test(rk, ca, cb) values('c', 'ç',  'Ç');
    insert into test(rk, ca, cb) values('c', 'Ç',  'ç');
    insert into test(rk, ca, cb) values('c', 'C',  'Ç');

    insert into test(rk, ca, cb) values('u', 'Ú',  'û');
    insert into test(rk, ca, cb) values('u', 'Ù',  'Û');
    insert into test(rk, ca, cb) values('u', 'ü',  'û');

    insert into test(rk, ca, cb) values('s', 'Š',  'Š');
    insert into test(rk, ca, cb) values('s', 'ş',  'š');
    insert into test(rk, ca, cb) values('s', 'š',  'Š');

    insert into test(rk, ca, cb) values('n', 'Ñ',  'ñ');
    insert into test(rk, ca, cb) values('n', 'ñ',  'ñ');
    insert into test(rk, ca, cb) values('n', 'Ň',  'Ñ');
    commit;

    set list on;
	set plan on;

	-- First, we check result of NATURAL scans:
    select rk from test group by ca,cb,rk;
	commit;

	-- Then, check results of GROUP BY when it can use index.
	-- ::: NOTE :::
	-- As of current state (WI-T3.0.0.31832 beta-2), FB cah do GROUP BY
	-- WITH using of index on multi-byte or insensitive collation only
	-- when this index is: 1) UNIQUE and 2) ASCENDING.
	-- Index still not used in DISTINCT statement, so it's not checked.
	-- See comments in CORE-4787.
	create unique index test_unq1 on test(ca, cb, rk, id);
	create unique index test_unq2 on test(cb, rk, ca, id);
	commit;

	set plan on;
    select rk from test group by ca,cb,rk;
    select rk from test group by cb,rk,ca;
"""

act = isql_act('db', test_script)

expected_stdout = """

	PLAN SORT (TEST NATURAL)
	RK                              a
	RK                              c
	RK                              d
	RK                              l
	RK                              n
	RK                              o
	RK                              s
	RK                              u

	PLAN (TEST ORDER TEST_UNQ1)
	RK                              a
	RK                              c
	RK                              d
	RK                              l
	RK                              n
	RK                              o
	RK                              s
	RK                              u

	PLAN (TEST ORDER TEST_UNQ2)
	RK                              a
	RK                              c
	RK                              d
	RK                              l
	RK                              n
	RK                              o
	RK                              s
	RK                              u
"""

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