fix(cluster): add copy into test

Author: zhang2014

tests/logictest/suites/base/03_dml/03_0028_copy_into_stage

@@ -0,0 +1,38 @@
+statement ok
+DROP DATABASE IF EXISTS db1;
+
+statement ok
+CREATE DATABASE db1;
+
+statement ok
+USE db1;
+
+statement ok
+CREATE TABLE test_table(id INTEGER, name VARCHAR, age INT);
+
+statement ok
+insert into test_table (id,name,age) values(1,'2',3), (4, '5', 6);
+
+statement ok
+CREATE STAGE IF NOT EXISTS test;
+
+statement ok
+copy into @test from test_table FILE_FORMAT = (type = 'CSV');
+
+statement ok
+copy into test_table from @test;
+
+statement query A
+SELECT COUNT() FROM test_table;
+
+----
+4
+
+statement ok
+drop table test_table all;
+
+statement ok
+drop stage test;
+
+statement ok
+DROP DATABASE db1;