====
---- QUERY
# Create a simple view without renaming the columns.
create view ddl_test_db.simple_view as
select * from functional.alltypes
---- RESULTS
====
---- QUERY
# Test that 'if not exists' swallows the error (view already exists)
create view if not exists ddl_test_db.simple_view as
select * from functional.alltypesagg
---- RESULTS
====
---- QUERY
# Create another simple view with 'if not exists' on a subset of
# alltypes' columns using custom column names and comments
create view if not exists
ddl_test_db.simple_view_sub (x, y comment 'hello', z) as
select int_col, string_col, timestamp_col from functional.alltypes
---- RESULTS
====
---- QUERY
# Create a view on a parquet table (Hive cannot create/read/write parquet)
create view ddl_test_db.parquet_view as
select * from functional_parquet.alltypes where id < 20
---- RESULTS
====
---- QUERY
# Create a complex view with predicates, joins, aggregates and order by
create view ddl_test_db.complex_view (abc comment 'agg', xyz comment 'gby') as
select count(a.bigint_col), b.string_col from
functional.alltypesagg a inner join functional.alltypestiny b
on a.id = b.id where a.bigint_col < 50
group by b.string_col having count(a.bigint_col) > 1
order by b.string_col limit 100
---- RESULTS
====
---- QUERY
# Create a view on a view
create view ddl_test_db.view_view (aaa, bbb) as
select * from ddl_test_db.complex_view
---- RESULTS
====
---- QUERY
# Test that the views are displayed by 'show tables'
show tables in ddl_test_db
---- RESULTS
'complex_view'
'parquet_view'
'simple_view'
'simple_view_sub'
'view_view'
====
---- QUERY
# Test that the views can be described
describe ddl_test_db.simple_view
---- RESULTS
'id','int',''
'bool_col','boolean',''
'tinyint_col','tinyint',''
'smallint_col','smallint',''
'int_col','int',''
'bigint_col','bigint',''
'float_col','float',''
'double_col','double',''
'date_string_col','string',''
'string_col','string',''
'timestamp_col','timestamp',''
'year','int',''
'month','int',''
---- TYPES
string,string,string
====
---- QUERY
describe ddl_test_db.simple_view_sub
---- RESULTS
'x','int',''
'y','string','hello'
'z','timestamp',''
---- TYPES
string,string,string
====
---- QUERY
describe ddl_test_db.complex_view
---- RESULTS
'abc','bigint','agg'
'xyz','string','gby'
---- TYPES
string,string,string
====
---- QUERY
describe ddl_test_db.parquet_view
---- RESULTS
'id','int',''
'bool_col','boolean',''
'tinyint_col','tinyint',''
'smallint_col','smallint',''
'int_col','int',''
'bigint_col','bigint',''
'float_col','float',''
'double_col','double',''
'date_string_col','string',''
'string_col','string',''
'timestamp_col','timestamp',''
'year','int',''
'month','int',''
---- TYPES
string,string,string
====
---- QUERY
describe ddl_test_db.view_view
---- RESULTS
'aaa','bigint',''
'bbb','string',''
---- TYPES
string,string,string
====
---- QUERY
# Test that the views can be queried.
select count(*) from ddl_test_db.simple_view
---- RESULTS
7300
---- TYPES
bigint
====
---- QUERY
select count(*) from ddl_test_db.simple_view_sub
---- RESULTS
7300
---- TYPES
bigint
====
---- QUERY
select count(*) from ddl_test_db.complex_view
---- RESULTS
2
---- TYPES
bigint
====
---- QUERY
select count(*) from ddl_test_db.parquet_view
---- RESULTS
20
---- TYPES
bigint
====
---- QUERY
select count(*) from ddl_test_db.view_view
---- RESULTS
2
---- TYPES
bigint
====
---- QUERY
# Test dropping a view
drop view ddl_test_db.simple_view_sub
---- RESULTS
====
---- QUERY
# Test that the view is gone
show tables in ddl_test_db
---- RESULTS
'complex_view'
'parquet_view'
'simple_view'
'view_view'
====
---- QUERY
# Test 'if exists' for dropping a view (view does not exist)
drop view if exists ddl_test_db.bad_view
---- RESULTS
====
---- QUERY
# Test renaming a view
alter view ddl_test_db.view_view rename to ddl_test_db.view_on_view
---- RESULTS
====
---- QUERY
# Test renaming a parquet view
alter view ddl_test_db.parquet_view rename to ddl_test_db.new_parquet_view
---- RESULTS
====
---- QUERY
# Test that the view was renamed
show tables in ddl_test_db
---- RESULTS
'complex_view'
'new_parquet_view'
'simple_view'
'view_on_view'
====
---- QUERY
# Test altering a with a new definition
alter view ddl_test_db.new_parquet_view as
select bigint_col, string_col from functional_parquet.alltypesagg
where bigint_col is null limit 10
---- RESULTS
====
---- QUERY
# Test querying the altered view
select count(bigint_col), count(string_col) from ddl_test_db.new_parquet_view
---- RESULTS
0,10
---- TYPES
bigint,bigint
====
---- QUERY
# Create a view on a constant select and try to query it.
create view ddl_test_db.const_view
as select 1, 'a', cast(10.0 as float)
---- RESULTS
====
---- QUERY
select * from ddl_test_db.const_view
---- RESULTS
1,'a',10
---- TYPES
tinyint,string,float
====
---- QUERY
# Test that parentheses are preserved in view creation.
# If the parentheses were ignored the query would return a count > 0.
create view ddl_test_db.paren_view as
select count(*) from functional.alltypessmall
where true and (true or false) and false
---- RESULTS
====
---- QUERY
# Test that parentheses are preserved in view creation.
select * from ddl_test_db.paren_view
---- RESULTS
0
---- TYPES
bigint
====