# name: test/sql/types/char/test_char.test
# description: E021-01 Character string types. CHARACTER data type base tests.
# group: [char]

statement ok
CREATE TABLE t1(c1 CHAR(5));

statement ok
INSERT INTO t1 VALUES(NULL);

# possibility to keep null value
query T rowsort
SELECT * from t1;
----
NULL

statement ok
INSERT INTO t1 VALUES('1 '), (' 2'), ('');

# Check concatenation with function ||
query T rowsort
SELECT ' prefix' || c1 || 'trailing ' FROM t1;
----
 prefix 2trailing 
 prefix1 trailing 
 prefixtrailing 
NULL

statement ok
CREATE TABLE t2(c1 CHAR(3));

statement ok
INSERT INTO t2 VALUES ('123'),('2'),('1');

# for the purposes of the comparison, the shorter value is effectively extended to the length
#     of the longer by concatenation of <space>s on the right

skipif ignite3
# JIRA https://issues.apache.org/jira/browse/IGNITE-22106
query T
SELECT t1.c1 || t2.c1 FROM t1, t2 where t1.c1=t2.c1;
----
11

skipif ignite3
# JIRA https://issues.apache.org/jira/browse/IGNITE-22106
query T
SELECT t1.c1 || t2.c1 FROM t1 join t2  ON (t1.c1=t2.c1);
----
11

query TTTT
SELECT 'a' = 'a' AS t1, 'a' = 'b' AS t2, 'a' = 'a   ' AS t3, 'a' = '   a' AS t4;
----
true	false	true	false