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impala/testdata/workloads/functional-query/queries/QueryTest/nested-struct-in-select-list.test
Daniel Becker 4c28ab02c6 IMPALA-12001: Informative error message for complex types with DISTINCT 
Before this change, queries with SELECT DISTINCT on a complex type
failed.

With structs, we got a FE exception:
  use functional_parquet;
  select distinct(struct_val) from alltypes_structs;

  ERROR: IllegalStateException: null

With collections, the BE hits a DCHECK and crashes:
  use functional_parquet;
  select distinct(arr1) from complextypes_arrays;

  Socket error 104: [Errno 104] Connection reset by peer

Aggregate functions with complex DISTINCT parameters also failed without
a clear error message. For example:
  select count(distinct struct_val) from alltypes_structs;
  select count(distinct arr1) from complextypes_arrays;

To support DISTINCT for complex types we would need to implement
equality and hash for them. We are not planning to do it in the near
future, so this change introduces informative error messages in these
cases.

Testing:
 - added test queries for SELECT DISTINCT and SELECT COUNT(DISTINCT ...)
   with arrays, maps and structs, expecting the correct error messages.

Change-Id: Ibe2642d1683a10fd05a95e2ad8470d16f0d5242c
Reviewed-on: http://gerrit.cloudera.org:8080/20752
Reviewed-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
2023-12-11 18:38:37 +00:00

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====
---- QUERY
# Select a struct that contains multiple structs.
select id, outer_struct
from complextypes_nested_structs;
---- RESULTS
1,'{"str":"somestr1","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":333222111,"str":"somestr3"},"inner_struct3":{"s":{"i":112288,"s":null}}}'
2,'{"str":"str","inner_struct1":null,"inner_struct2":{"i":100,"str":"str3"},"inner_struct3":{"s":{"i":321,"s":"dfgs"}}}'
3,'NULL'
4,'{"str":"","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":1,"str":"string"},"inner_struct3":{"s":null}}'
5,'{"str":null,"inner_struct1":null,"inner_struct2":null,"inner_struct3":null}'
---- TYPES
INT,STRING
====
---- QUERY
# Select a struct that contains multiple structs using a filter on a non-struct field.
select id, outer_struct
from complextypes_nested_structs
where id > 2;
---- RESULTS
3,'NULL'
4,'{"str":"","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":1,"str":"string"},"inner_struct3":{"s":null}}'
5,'{"str":null,"inner_struct1":null,"inner_struct2":null,"inner_struct3":null}'
---- TYPES
INT,STRING
====
---- QUERY
# Select a struct that contains multiple structs using a filter on a struct field.
select id, outer_struct
from complextypes_nested_structs
where length(outer_struct.str) > 3;
---- RESULTS
1,'{"str":"somestr1","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":333222111,"str":"somestr3"},"inner_struct3":{"s":{"i":112288,"s":null}}}'
---- TYPES
INT,STRING
====
---- QUERY
# Select a nested struct with an order by.
select id, outer_struct
from complextypes_nested_structs
order by id;
---- RESULTS: VERIFY_IS_EQUAL_SORTED
1,'{"str":"somestr1","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":333222111,"str":"somestr3"},"inner_struct3":{"s":{"i":112288,"s":null}}}'
2,'{"str":"str","inner_struct1":null,"inner_struct2":{"i":100,"str":"str3"},"inner_struct3":{"s":{"i":321,"s":"dfgs"}}}'
3,'NULL'
4,'{"str":"","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":1,"str":"string"},"inner_struct3":{"s":null}}'
5,'{"str":null,"inner_struct1":null,"inner_struct2":null,"inner_struct3":null}'
---- TYPES
INT,STRING
====
---- QUERY
# Select a nested struct with an order by and a limit. The limit triggers materialisation
# in the TopN node.
select id, outer_struct
from functional_orc_def.complextypes_nested_structs
order by id limit 2;
---- RESULTS: VERIFY_IS_EQUAL_SORTED
1,'{"str":"somestr1","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":333222111,"str":"somestr3"},"inner_struct3":{"s":{"i":112288,"s":null}}}'
2,'{"str":"str","inner_struct1":null,"inner_struct2":{"i":100,"str":"str3"},"inner_struct3":{"s":{"i":321,"s":"dfgs"}}}'
---- TYPES
INT,STRING
====
---- QUERY
# Select a nested struct with an order by.
select id, outer_struct
from complextypes_nested_structs
order by id desc;
---- RESULTS: VERIFY_IS_EQUAL_SORTED
5,'{"str":null,"inner_struct1":null,"inner_struct2":null,"inner_struct3":null}'
4,'{"str":"","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":1,"str":"string"},"inner_struct3":{"s":null}}'
3,'NULL'
2,'{"str":"str","inner_struct1":null,"inner_struct2":{"i":100,"str":"str3"},"inner_struct3":{"s":{"i":321,"s":"dfgs"}}}'
1,'{"str":"somestr1","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":333222111,"str":"somestr3"},"inner_struct3":{"s":{"i":112288,"s":null}}}'
---- TYPES
INT,STRING
====
---- QUERY
# Select the same nested struct multiple times in one query.
select id, outer_struct, outer_struct
from complextypes_nested_structs;
---- RESULTS
1,'{"str":"somestr1","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":333222111,"str":"somestr3"},"inner_struct3":{"s":{"i":112288,"s":null}}}','{"str":"somestr1","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":333222111,"str":"somestr3"},"inner_struct3":{"s":{"i":112288,"s":null}}}'
2,'{"str":"str","inner_struct1":null,"inner_struct2":{"i":100,"str":"str3"},"inner_struct3":{"s":{"i":321,"s":"dfgs"}}}','{"str":"str","inner_struct1":null,"inner_struct2":{"i":100,"str":"str3"},"inner_struct3":{"s":{"i":321,"s":"dfgs"}}}'
3,'NULL','NULL'
4,'{"str":"","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":1,"str":"string"},"inner_struct3":{"s":null}}','{"str":"","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":1,"str":"string"},"inner_struct3":{"s":null}}'
5,'{"str":null,"inner_struct1":null,"inner_struct2":null,"inner_struct3":null}','{"str":null,"inner_struct1":null,"inner_struct2":null,"inner_struct3":null}'
---- TYPES
INT,STRING,STRING
====
---- QUERY
# Select the same nested struct multiple times in one query and order the results.
select id, outer_struct, outer_struct
from complextypes_nested_structs
order by id desc;
---- RESULTS: VERIFY_IS_EQUAL_SORTED
5,'{"str":null,"inner_struct1":null,"inner_struct2":null,"inner_struct3":null}','{"str":null,"inner_struct1":null,"inner_struct2":null,"inner_struct3":null}'
4,'{"str":"","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":1,"str":"string"},"inner_struct3":{"s":null}}','{"str":"","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":1,"str":"string"},"inner_struct3":{"s":null}}'
3,'NULL','NULL'
2,'{"str":"str","inner_struct1":null,"inner_struct2":{"i":100,"str":"str3"},"inner_struct3":{"s":{"i":321,"s":"dfgs"}}}','{"str":"str","inner_struct1":null,"inner_struct2":{"i":100,"str":"str3"},"inner_struct3":{"s":{"i":321,"s":"dfgs"}}}'
1,'{"str":"somestr1","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":333222111,"str":"somestr3"},"inner_struct3":{"s":{"i":112288,"s":null}}}','{"str":"somestr1","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":333222111,"str":"somestr3"},"inner_struct3":{"s":{"i":112288,"s":null}}}'
---- TYPES
INT,STRING,STRING
====
---- QUERY
# Similar to the above query but here the 'id' field is not in the select list but still
# used in the order by.
select outer_struct, outer_struct
from complextypes_nested_structs
order by id desc;
---- RESULTS: VERIFY_IS_EQUAL_SORTED
'{"str":null,"inner_struct1":null,"inner_struct2":null,"inner_struct3":null}','{"str":null,"inner_struct1":null,"inner_struct2":null,"inner_struct3":null}'
'{"str":"","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":1,"str":"string"},"inner_struct3":{"s":null}}','{"str":"","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":1,"str":"string"},"inner_struct3":{"s":null}}'
'NULL','NULL'
'{"str":"str","inner_struct1":null,"inner_struct2":{"i":100,"str":"str3"},"inner_struct3":{"s":{"i":321,"s":"dfgs"}}}','{"str":"str","inner_struct1":null,"inner_struct2":{"i":100,"str":"str3"},"inner_struct3":{"s":{"i":321,"s":"dfgs"}}}'
'{"str":"somestr1","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":333222111,"str":"somestr3"},"inner_struct3":{"s":{"i":112288,"s":null}}}','{"str":"somestr1","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":333222111,"str":"somestr3"},"inner_struct3":{"s":{"i":112288,"s":null}}}'
---- TYPES
STRING,STRING
====
---- QUERY
# Select an inner struct where the outer struct is null.
select outer_struct.inner_struct1 from complextypes_nested_structs
where id = 3;
---- RESULTS
'NULL'
---- TYPES
STRING
====
---- QUERY
# WITH clause creates an inline view containing a nested struct.
with sub as (
select id, outer_struct from complextypes_nested_structs)
select sub.id, sub.outer_struct from sub;
---- RESULTS
1,'{"str":"somestr1","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":333222111,"str":"somestr3"},"inner_struct3":{"s":{"i":112288,"s":null}}}'
2,'{"str":"str","inner_struct1":null,"inner_struct2":{"i":100,"str":"str3"},"inner_struct3":{"s":{"i":321,"s":"dfgs"}}}'
3,'NULL'
4,'{"str":"","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":1,"str":"string"},"inner_struct3":{"s":null}}'
5,'{"str":null,"inner_struct1":null,"inner_struct2":null,"inner_struct3":null}'
---- TYPES
INT,STRING
====
---- QUERY
# WITH clause creates an inline view containing a nested struct and we query a nested
# field.
with sub as (
select id, outer_struct from complextypes_nested_structs)
select sub.id, sub.outer_struct.inner_struct2 from sub;
---- RESULTS
1,'{"i":333222111,"str":"somestr3"}'
2,'{"i":100,"str":"str3"}'
3,'NULL'
4,'{"i":1,"str":"string"}'
5,'NULL'
---- TYPES
INT,STRING
====
---- QUERY
# WITH clause creates an inline view containing a nested struct and we query a doubly
# nested field.
with sub as (
select id, outer_struct from complextypes_nested_structs)
select sub.id, sub.outer_struct.inner_struct2.i from sub;
---- RESULTS
1,333222111
2,100
3,NULL
4,1
5,NULL
---- TYPES
INT,INT
====
---- QUERY
# WITH clause creates an inline view containing a nested struct and one of its members
# that is a struct itself; query both in the main select statement.
with sub as (
select id, outer_struct, outer_struct.inner_struct3 inner3
from complextypes_nested_structs)
select id, outer_struct, inner3 from sub;
---- RESULTS
1,'{"str":"somestr1","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":333222111,"str":"somestr3"},"inner_struct3":{"s":{"i":112288,"s":null}}}','{"s":{"i":112288,"s":null}}'
2,'{"str":"str","inner_struct1":null,"inner_struct2":{"i":100,"str":"str3"},"inner_struct3":{"s":{"i":321,"s":"dfgs"}}}','{"s":{"i":321,"s":"dfgs"}}'
3,'NULL','NULL'
4,'{"str":"","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":1,"str":"string"},"inner_struct3":{"s":null}}','{"s":null}'
5,'{"str":null,"inner_struct1":null,"inner_struct2":null,"inner_struct3":null}','NULL'
---- TYPES
INT,STRING,STRING
====
---- QUERY
# WITH clause creates an inline view containing a nested struct ('outer_struct') and one
# of its members that is a struct itself ('inner3'); query a different member of
# 'outer_struct' as well as 'inner3' in the main select statement.
with sub as (
select id, outer_struct, outer_struct.inner_struct3 inner3
from complextypes_nested_structs)
select id, outer_struct.inner_struct2, inner3 from sub;
---- RESULTS
1,'{"i":333222111,"str":"somestr3"}','{"s":{"i":112288,"s":null}}'
2,'{"i":100,"str":"str3"}','{"s":{"i":321,"s":"dfgs"}}'
3,'NULL','NULL'
4,'{"i":1,"str":"string"}','{"s":null}'
5,'NULL','NULL'
---- TYPES
INT,STRING,STRING
====
---- QUERY
# WITH clause creates an inline view containing a nested struct ('outer_struct') and one
# of its members that is a struct itself ('inner3'); query a different member of
# 'outer_struct' as well as a member of 'inner3' in the main select statement.
with sub as (
select id, outer_struct, outer_struct.inner_struct3 inner3
from complextypes_nested_structs)
select id, outer_struct.inner_struct2, inner3.s from sub;
---- RESULTS
1,'{"i":333222111,"str":"somestr3"}','{"i":112288,"s":null}'
2,'{"i":100,"str":"str3"}','{"i":321,"s":"dfgs"}'
3,'NULL','NULL'
4,'{"i":1,"str":"string"}','NULL'
5,'NULL','NULL'
---- TYPES
INT,STRING,STRING
====
---- QUERY
# WITH clause creates an inline view containing a nested struct; we order by id.
with sub as (
select id, outer_struct from complextypes_nested_structs)
select sub.id, sub.outer_struct.inner_struct2 from sub order by sub.id desc;
---- RESULTS
5,'NULL'
4,'{"i":1,"str":"string"}'
3,'NULL'
2,'{"i":100,"str":"str3"}'
1,'{"i":333222111,"str":"somestr3"}'
---- TYPES
INT,STRING
====
---- QUERY
# WITH clause creates an inline view containing a nested struct; we order by a nested
# field.
with sub as (
select id, outer_struct from complextypes_nested_structs)
select sub.id, sub.outer_struct.inner_struct2 from sub
order by sub.outer_struct.inner_struct2.i, sub.id;
---- RESULTS
4,'{"i":1,"str":"string"}'
2,'{"i":100,"str":"str3"}'
1,'{"i":333222111,"str":"somestr3"}'
3,'NULL'
5,'NULL'
---- TYPES
INT,STRING
====
---- QUERY
# WITH clause creates an inline view containing a nested struct; we order by a nested
# field that is not present in the select list.
with sub as (
select id, outer_struct from complextypes_nested_structs)
select sub.id, sub.outer_struct.inner_struct1 from sub
order by sub.outer_struct.inner_struct2.i, sub.id;
---- RESULTS
4,'{"str":"somestr2","de":12345.12}'
2,'NULL'
1,'{"str":"somestr2","de":12345.12}'
3,'NULL'
5,'NULL'
---- TYPES
INT,STRING
====
---- QUERY
# WITH clause creates an inline view containing a nested struct; filter by a struct field
# from the inline view.
with sub as (
select id, outer_struct from complextypes_nested_structs)
select sub.id, sub.outer_struct.str
from sub
where length(sub.outer_struct.str) < 4;
---- RESULTS
2,'str'
4,''
---- TYPES
INT,STRING
====
---- QUERY
# WITH clause creates an inline view containing a two structs; select only one of them and
# filter by one of its fields.
with sub as (
select id, outer_struct.inner_struct1 s1, outer_struct.inner_struct2 s2
from complextypes_nested_structs)
select sub.id, s2
from sub
where length(s2.str) < 8;
---- RESULTS
2,'{"i":100,"str":"str3"}'
4,'{"i":1,"str":"string"}'
---- TYPES
INT,STRING
====
---- QUERY
# WITH clause creates an inline view containing a nested struct; filter by a struct field
# from the inline view but do not select anything from it.
with sub as (
select id, outer_struct from complextypes_nested_structs)
select 1
from sub
where length(sub.outer_struct.str) < 4;
---- RESULTS
1
1
---- TYPES
TINYINT
====
---- QUERY
# WITH clause creates an inline view containing a nested struct. Also has a filter on
# the inline view and ordering by a non-complex item from the view.
with sub as (
select id, outer_struct
from complextypes_nested_structs
where length(outer_struct.str) > 3)
select sub.id, sub.outer_struct from sub order by sub.id desc;
---- RESULTS
1,'{"str":"somestr1","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":333222111,"str":"somestr3"},"inner_struct3":{"s":{"i":112288,"s":null}}}'
---- TYPES
INT,STRING
====
---- QUERY
# Two-level inline view, querying a struct filed.
with sub as (
select id, outer_struct from complextypes_nested_structs)
select id, s from (select id, outer_struct.inner_struct1 as s from sub) v
order by id;
---- RESULTS
1,'{"str":"somestr2","de":12345.12}'
2,'NULL'
3,'NULL'
4,'{"str":"somestr2","de":12345.12}'
5,'NULL'
---- TYPES
INT,STRING
====
---- QUERY
# Two-level inline view, querying the top level struct.
with sub as (
select id, outer_struct from complextypes_nested_structs)
select id, s from (select id, outer_struct as s from sub) v
order by id;
---- RESULTS
1,'{"str":"somestr1","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":333222111,"str":"somestr3"},"inner_struct3":{"s":{"i":112288,"s":null}}}'
2,'{"str":"str","inner_struct1":null,"inner_struct2":{"i":100,"str":"str3"},"inner_struct3":{"s":{"i":321,"s":"dfgs"}}}'
3,'NULL'
4,'{"str":"","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":1,"str":"string"},"inner_struct3":{"s":null}}'
5,'{"str":null,"inner_struct1":null,"inner_struct2":null,"inner_struct3":null}'
---- TYPES
INT,STRING
====
---- QUERY
# Select a struct that contains multiple structs using a filter on multiple struct fields
# when the struct fields in the predicate are itemTupleDescriptors within the struct(s),
# not in the main tuple.
select id, outer_struct
from complextypes_nested_structs
where outer_struct.inner_struct2.i > length(outer_struct.str)
---- RESULTS
1,'{"str":"somestr1","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":333222111,"str":"somestr3"},"inner_struct3":{"s":{"i":112288,"s":null}}}'
2,'{"str":"str","inner_struct1":null,"inner_struct2":{"i":100,"str":"str3"},"inner_struct3":{"s":{"i":321,"s":"dfgs"}}}'
4,'{"str":"","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":1,"str":"string"},"inner_struct3":{"s":null}}'
---- TYPES
INT,STRING
====
---- QUERY
# Select a nested struct member first, and then the enclosing struct so that even the
# enclosing struct is embedded in another one, but the top level struct is not present in
# the query.
select id, outer_struct.inner_struct2.i, outer_struct.inner_struct2
from complextypes_nested_structs;
---- RESULTS
1,333222111,'{"i":333222111,"str":"somestr3"}'
2,100,'{"i":100,"str":"str3"}'
3,NULL,'NULL'
4,1,'{"i":1,"str":"string"}'
5,NULL,'NULL'
---- TYPES
INT,INT,STRING
====
---- QUERY
# An inner join where struct fields are in the join condition and their parent struct is
# in the select list.
select a.outer_struct, b.small_struct
from complextypes_nested_structs a
inner join complextypes_structs b
on b.small_struct.i = a.outer_struct.inner_struct2.i + 19091;
---- RESULTS
'{"str":"str","inner_struct1":null,"inner_struct2":{"i":100,"str":"str3"},"inner_struct3":{"s":{"i":321,"s":"dfgs"}}}','{"i":19191,"s":"small_struct_str"}'
---- TYPES
STRING,STRING
====
---- QUERY
# An outer join where struct fields are in the join condition and their parent struct is
# in the select list.
select a.outer_struct, b.small_struct
from complextypes_nested_structs a
full outer join complextypes_structs b
on b.small_struct.i = a.outer_struct.inner_struct2.i + 19091;
---- RESULTS
'{"str":"somestr1","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":333222111,"str":"somestr3"},"inner_struct3":{"s":{"i":112288,"s":null}}}','NULL'
'{"str":"str","inner_struct1":null,"inner_struct2":{"i":100,"str":"str3"},"inner_struct3":{"s":{"i":321,"s":"dfgs"}}}','{"i":19191,"s":"small_struct_str"}'
'NULL','NULL'
'{"str":"","inner_struct1":{"str":"somestr2","de":12345.12},"inner_struct2":{"i":1,"str":"string"},"inner_struct3":{"s":null}}','NULL'
'{"str":null,"inner_struct1":null,"inner_struct2":null,"inner_struct3":null}','NULL'
'NULL','{"i":98765,"s":"abcde f"}'
'NULL','{"i":98765,"s":null}'
'NULL','{"i":null,"s":null}'
'NULL','{"i":null,"s":"str"}'
'NULL','NULL'
---- TYPES
STRING,STRING
====
---- QUERY
# Checks that "SELECT nested_struct.* ..." omits the nested structs from the output.
select id, outer_struct.* from complextypes_nested_structs;
---- RESULTS
1,'somestr1'
2,'str'
3,'NULL'
4,''
5,'NULL'
---- TYPES
INT,STRING
====
---- QUERY
# IMPALA-10839: Display nulls at the correct level.
select id, outer_struct.inner_struct3
from complextypes_nested_structs;
---- RESULTS
1,'{"s":{"i":112288,"s":null}}'
2,'{"s":{"i":321,"s":"dfgs"}}'
3,'NULL'
4,'{"s":null}'
5,'NULL'
---- TYPES
INT,STRING
====
---- QUERY
# IMPALA-10839: Display nulls at the correct level.
select id, outer_struct.inner_struct3.s
from complextypes_nested_structs;
---- RESULTS
1,'{"i":112288,"s":null}'
2,'{"i":321,"s":"dfgs"}'
3,'NULL'
4,'NULL'
5,'NULL'
---- TYPES
INT,STRING
====
---- QUERY
# Complex types in IN predicates are not supported.
select outer_struct
from complextypes_nested_structs
where outer_struct in
(select outer_struct from functional_parquet.complextypes_nested_structs);
---- CATCH
AnalysisException: A subquery can't return complex types. (SELECT outer_struct FROM functional_parquet.complex
types_nested_structs)
====
---- QUERY
select distinct outer_struct from complextypes_nested_structs
---- CATCH
AnalysisException: Complex types are not supported in SELECT DISTINCT clauses.
====
---- QUERY
select count(distinct outer_struct) from complextypes_nested_structs;
---- CATCH
AnalysisException: Complex types are not supported as DISTINCT parameters of aggregate functions.
====
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