testdata/workloads/functional-query/queries/QueryTest/null_data.test

====
---- QUERY
# Test for selecting from table with null and empty strings.
select * from nulltable
---- RESULTS
'a','','NULL',NULL,NULL,'a\x00b','\x00'
---- TYPES
string, string, string, int, double, string, string
====
---- QUERY
select count(*),count(a),count(b),count(c),count(d),count(e),count(f),count(g)
from nulltable
---- RESULTS
1,1,1,0,0,0,1,1
---- TYPES
bigint, bigint, bigint, bigint, bigint, bigint, bigint, bigint
====
---- QUERY
select length(f),length(g)
from nulltable
---- RESULTS
3,1
---- TYPES
int, int
====
---- QUERY
# Test for selecting from table with '\' escape character with null and empty strings.
select * from nullescapedtable
---- RESULTS
'a','','NULL',NULL,NULL,'a\x00b','\x00'
---- TYPES
string, string, string, int, double, string, string
====
---- QUERY
select count(*),count(a),count(b),count(c),count(d),count(e),count(f),count(g)
from nullescapedtable
---- RESULTS
1,1,1,0,0,0,1,1
---- TYPES
bigint, bigint, bigint, bigint, bigint, bigint, bigint, bigint
====