KiranVelumuri commented on code in PR #4915:
URL: https://github.com/apache/hive/pull/4915#discussion_r1421429348
##########
ql/src/test/queries/clientpositive/insert_and_load_overwrite_drop_partition.q:
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@@ -0,0 +1,72 @@
+CREATE EXTERNAL TABLE `table1`(
+ `name` string,
+ `number` string)
+PARTITIONED BY (
+ `part_col` string);
+
+CREATE EXTERNAL TABLE `table2`(
+ `name` string,
+ `number` string)
+PARTITIONED BY (
+ `part_col` string);
+
+insert into table table1 values ('a', '10', 'part1');
+insert into table table1 values ('b', '11', 'part1');
+insert into table table1 values ('a2', '2', 'part2');
+
+insert into table table2 values ('x', '100', 'part1');
+insert into table table2 values ('y', '101', 'part1');
+insert into table table2 values ('z', '102', 'part1');
+insert into table table2 values ('x2', '200', 'part2');
+insert into table table2 values ('y2', '201', 'part2');
+
+--non empty input case
+alter table table2 drop partition(part_col='part1');
+
+select count(*) from table2 where part_col='part1';
+
+dfs -ls ${hiveconf:hive.metastore.warehouse.dir}/table2/part_col=part1;
+
+insert overwrite table table2 partition(part_col='part1') select name, number
from table1 where part_col='part1';
+
+select count(*) from table2 where part_col='part1';
+
+dfs -ls ${hiveconf:hive.metastore.warehouse.dir}/table2/part_col=part1;
+
+--empty input case
+alter table table2 drop partition(part_col='part2');
+
+select count(*) from table2 where part_col='part2';
+
+dfs -ls ${hiveconf:hive.metastore.warehouse.dir}/table2/part_col=part2;
+
+insert overwrite table table2 partition(part_col='part2') select name, number
from table1 where part_col='dummy_part';
+
+select count(*) from table2 where part_col='part2';
+
+dfs -ls ${hiveconf:hive.metastore.warehouse.dir}/table2/part_col=part2;
+
+--load overwrite partition
+CREATE EXTERNAL TABLE `table3`(
Review Comment:
Updated the test to reuse table2. Please help in reviewing and merging the
changes. Thank you.
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