[Bug](exec) push down no group by agg min cause error result (#20289)
sql """
CREATE TABLE t1_int (
num int(11) NULL,
dgs_jkrq bigint(20) NULL
) ENGINE=OLAP
DUPLICATE KEY(num)
COMMENT 'OLAP'
DISTRIBUTED BY HASH(num) BUCKETS 1
PROPERTIES (
"replication_allocation" = "tag.location.default: 1",
"storage_format" = "V2",
"light_schema_change" = "true",
"disable_auto_compaction" = "false",
"enable_single_replica_compaction" = "false"
);
"""
sql """insert into t1_int values(1,1),(1,2),(1,3),(1,4),(1,null);"""
qt_sql """
select min(dgs_jkrq) from t1_int;
"""
get the error result：4
after change we get the right result：1
608d2a3eca