test for null_array_orc_load

tests/queries/0_stateless/00900_null_array_orc_load.reference

@@ -0,0 +1,3 @@
+[0]	['Test 0']
+[NULL]	[NULL]
+[]	[]

tests/queries/0_stateless/00900_null_array_orc_load.sh

@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+
+CUR_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
+# shellcheck source=../shell_config.sh
+. "$CUR_DIR"/../shell_config.sh
+
+DATA_FILE=$CUR_DIR/data_orc/test_null_array.orc
+
+${CLICKHOUSE_CLIENT} --query="DROP TABLE IF EXISTS test_null_array_orc"
+${CLICKHOUSE_CLIENT} --query="CREATE TABLE test_null_array_orc(col0 Array(Nullable(Int64)),col1 Array(Nullable(String))) ENGINE = Memory"
+cat "$DATA_FILE"  | ${CLICKHOUSE_CLIENT} -q "insert into test_null_array_orc format ORC"
+${CLICKHOUSE_CLIENT} --query="select * from test_null_array_orc"
+
+${CLICKHOUSE_CLIENT} --query="drop table test_null_array_orc"
+
+#
+#  test_null_array.orc is impossible to create using CH because it stores NULL instead of empty array
+#  but CH able to ingest it as empty array []
+#
+#  import pyorc
+#  with open("test_null_array.orc", "wb") as data:
+#      with pyorc.Writer(data, "struct<col0:array<int>,col1:array<string>>") as writer:
+#          writer.write(([0], ["Test 0"]))
+#          writer.write(([None], [None]))
+#          writer.write((None, None))
+#
+#