[fix] change parameter type of hll_cardinality from STRING to HLL (#9002)

In #8882, we disabled the conversion from string to hll. So we need to change the parameter type of hll_cardinality() too

gensrc/script/doris_builtins_functions.py

@@ -1175,7 +1175,7 @@ visible_functions = [
             '', '', 'vec', ''],
 
     #hll function
-    [['hll_cardinality'], 'BIGINT', ['VARCHAR'],
+    [['hll_cardinality'], 'BIGINT', ['HLL'],
         '_ZN5doris12HllFunctions15hll_cardinalityEPN9doris_udf15FunctionContextERKNS1_9StringValE',
         '', '', 'vec', 'ALWAYS_NOT_NULLABLE'],
     [['hll_hash'], 'HLL', ['VARCHAR'],
@@ -1184,9 +1184,6 @@ visible_functions = [
     [['hll_empty'], 'HLL', [],
         '_ZN5doris12HllFunctions9hll_emptyEPN9doris_udf15FunctionContextE',
         '', '', 'vec', 'ALWAYS_NOT_NULLABLE'],
-    [['hll_cardinality'], 'BIGINT', ['STRING'],
-        '_ZN5doris12HllFunctions15hll_cardinalityEPN9doris_udf15FunctionContextERKNS1_9StringValE',
-        '', '', 'vec', 'ALWAYS_NOT_NULLABLE'],
     [['hll_hash'], 'HLL', ['STRING'],
         '_ZN5doris12HllFunctions8hll_hashEPN9doris_udf15FunctionContextERKNS1_9StringValE',
         '', '', 'vec', 'ALWAYS_NOT_NULLABLE'],

regression-test/data/types/complex_types/basic_agg_test.out

@@ -9,3 +9,8 @@
 2	\N
 3	\N
 
+-- !sql_hll_cardinality --
+1	0
+2	1
+3	2
+

regression-test/suites/types/complex_types/basic_agg_test.groovy

@@ -27,4 +27,6 @@ suite("basic_agg_test") {
     qt_sql_bitmap """select * from bitmap_basic_agg;"""
 
     qt_sql_hll """select * from hll_basic_agg;"""
-}
+
+    qt_sql_hll_cardinality """select k1, hll_cardinality(hll_union(k2)) from hll_basic_agg group by k1 order by k1;"""
+}