====
---- QUERY
use alter_table_test_db
---- RESULTS
====
---- QUERY
# First create an unpartitioned table
create external table t1 (i int) location '/test-warehouse/t1_tmp1'
---- RESULTS
====
---- QUERY
describe t1
---- RESULTS
'i','int',''
---- TYPES
string,string,string
====
---- QUERY
# Add some columns
alter table t1 add columns (t tinyint, s string comment 'Str Col')
---- RESULTS
====
---- QUERY
describe t1
---- RESULTS
'i','int',''
't','tinyint',''
's','string','Str Col'
---- TYPES
string,string,string
====
---- QUERY
alter table t1 rename to t2
---- RESULTS
====
---- QUERY
show tables
---- RESULTS
't2'
---- TYPES
string
====
---- QUERY
# Move the table to a different database
alter table t2 rename to alter_table_test_db2.t1_inotherdb
---- RESULTS
====
---- QUERY
# No longer appears in this database
show tables
---- RESULTS
---- TYPES
string
====
---- QUERY
# Shows up in the second database
show tables in alter_table_test_db2
---- RESULTS
't1_inotherdb'
---- TYPES
string
====
---- QUERY
# Move the table back to this database
alter table alter_table_test_db2.t1_inotherdb rename to t2
---- RESULTS
====
---- QUERY
# make sure the new table shows the same columns as the old table
describe t2
---- RESULTS
'i','int',''
't','tinyint',''
's','string','Str Col'
---- TYPES
string,string,string
====
---- QUERY
alter table t2 drop column t
---- RESULTS
====
---- QUERY
# The dropped column no longer shows up
describe t2
---- RESULTS
'i','int',''
's','string','Str Col'
---- TYPES
string,string,string
====
---- QUERY
# Replace the columns with new values
alter table t2 replace columns (c1 bigint comment 'id col', c2 string, c3 int)
---- RESULTS
====
---- QUERY
describe t2
---- RESULTS
'c1','bigint','id col'
'c2','string',''
'c3','int',''
---- TYPES
string,string,string
====
---- QUERY
# Should be able to read/write using the new column types
insert overwrite table t2 select 1, '50', 2 from functional.alltypes limit 2
---- RESULTS
: 2
====
---- QUERY
select * from t2
---- RESULTS
1,'50',2
1,'50',2
---- TYPES
bigint,string,int
====
---- QUERY
alter table t2 change column c2 int_col int comment 'changed to int col'
---- RESULTS
====
---- QUERY
alter table t2 change column c1 id_col bigint
---- RESULTS
====
---- QUERY
alter table t2 change column c3 c3 int comment 'added a comment'
---- RESULTS
====
---- QUERY
describe t2
---- RESULTS
'id_col','bigint','id col'
'int_col','int','changed to int col'
'c3','int','added a comment'
---- TYPES
string,string,string
====
---- QUERY
select * from t2
---- RESULTS
1,50,2
1,50,2
---- TYPES
bigint,int,int
====
---- QUERY
# Add some complex-typed columns
alter table t2 add columns (
x array<int>,
y map<string,float> comment 'Map Col',
z struct<f1:boolean,f2:bigint>)
---- RESULTS
====
---- QUERY
describe t2
---- RESULTS
'id_col','bigint','id col'
'int_col','int','changed to int col'
'c3','int','added a comment'
'x','array<int>',''
'y','map<string,float>','Map Col'
'z','struct<f1:boolean,f2:bigint>',''
---- TYPES
string,string,string
====
---- QUERY
# Replace columns with some complex-typed columns
alter table t2 replace columns (
a int comment 'Int Col',
b struct<f1:array<int>,f2:map<string,struct<f1:bigint>>>,
c double)
---- RESULTS
====
---- QUERY
describe t2
---- RESULTS
'a','int','Int Col'
'b','struct<f1:array<int>,f2:map<string,struct<f1:bigint>>>',''
'c','double',''
---- TYPES
string,string,string
====
---- QUERY
create external table jointbl_test like functional.jointbl
---- RESULTS
====
---- QUERY
# Expect new table to be empty
select * from jointbl_test
---- RESULTS
---- TYPES
bigint,string,int,int
====
---- QUERY
# change the location to point to some data
alter table jointbl_test set location '/test-warehouse/jointbl'
---- RESULTS
====
---- QUERY
# should get some results back now
select * from jointbl_test order by test_id limit 3
---- RESULTS
1001,'Name1',94611,5000
1002,'Name2',94611,5000
1003,'Name3',94611,5000
---- TYPES
bigint,string,int,int
====
---- QUERY
# change the location to point to some data in another file format
alter table jointbl_test set location '/test-warehouse/jointbl_seq'
---- RESULTS
====
---- QUERY
# change the table fileformat to match the data
alter table jointbl_test set fileformat sequencefile
---- RESULTS
====
---- QUERY
# now the proper data should be returned
select * from jointbl_test order by test_id limit 3
---- RESULTS
1001,'Name1',94611,5000
1002,'Name2',94611,5000
1003,'Name3',94611,5000
---- TYPES
bigint,string,int,int
====
---- QUERY
# Create a partitioned table. Specify the location so we know what dirs need
# to be cleaned after the test finishes executing.
create external table t_part (i int) partitioned by (j int, s string)
location '/test-warehouse/t_part_tmp'
---- RESULTS
====
---- QUERY
alter table t_part add partition (j=cast(2-1 as int), s='2012')
---- RESULTS
====
---- QUERY
alter table t_part add if not exists partition (j=1, s='2012')
---- RESULTS
====
---- QUERY
alter table t_part add if not exists partition (j=1, s='2012/withslash')
---- RESULTS
====
---- QUERY
alter table t_part add partition (j=1, s=substring('foo2013bar', 4, 8))
---- RESULTS
====
---- QUERY
# Add another partition that points to the same location as another partition.
# This will cause the data to be read twice, but shouldn't result in an error.
alter table t_part add partition (j=100, s='same_location')
location '/test-warehouse/t_part_tmp/j=1/s=2012'
---- RESULTS
====
---- QUERY
# Add another partition that points to an existing data location that does not
# follow the key=value directory structure.
alter table t_part add partition (j=101, s='different_part_dir')
location '/test-warehouse/part_data/'
---- RESULTS
====
---- QUERY
insert overwrite table t_part partition(j=1, s='2012') select 2 from functional.alltypes limit 2
---- RESULTS
j=1/s=2012/: 2
====
---- QUERY
insert overwrite table t_part partition(j=1, s='2013') select 3 from functional.alltypes limit 3
---- RESULTS
j=1/s=2013/: 3
====
---- QUERY
insert overwrite table t_part partition(j=1, s='2012/withslash')
select 1 from functional.alltypes limit 1
---- RESULTS
j=1/s=2012%2Fwithslash/: 1
====
---- QUERY
select i, j, s from t_part
---- RESULTS
1,1,'2012/withslash'
2,1,'2012'
2,1,'2012'
2,100,'same_location'
2,100,'same_location'
3,1,'2013'
3,1,'2013'
3,1,'2013'
1984,101,'different_part_dir'
---- TYPES
int,int,string
====
---- QUERY
alter table t_part add partition (j=NULL, s='2013')
---- RESULTS
====
---- QUERY
alter table t_part add partition (j=NULL, s=NULL)
---- RESULTS
====
---- QUERY
# Drop the partition that points to a duplication location. The data will no longer
# be read twice.
alter table t_part drop partition (j=100, s='same_location')
---- RESULTS
====
---- QUERY
alter table t_part drop partition (j=101, s='different_part_dir')
---- RESULTS
====
---- QUERY
insert overwrite table t_part partition(j=NULL, s=NULL)
select 4 from functional.alltypes limit 5
---- RESULTS
j=__HIVE_DEFAULT_PARTITION__/s=__HIVE_DEFAULT_PARTITION__/: 5
====
---- QUERY
select i, j, s from t_part
---- RESULTS
1,1,'2012/withslash'
2,1,'2012'
2,1,'2012'
3,1,'2013'
3,1,'2013'
3,1,'2013'
4,NULL,'NULL'
4,NULL,'NULL'
4,NULL,'NULL'
4,NULL,'NULL'
4,NULL,'NULL'
---- TYPES
int,int,string
====
---- QUERY
insert overwrite table t_part partition(j=NULL, s='2013')
select 5 from functional.alltypes limit 5
---- RESULTS
j=__HIVE_DEFAULT_PARTITION__/s=2013/: 5
====
---- QUERY
select i, j, s from t_part
---- RESULTS
1,1,'2012/withslash'
2,1,'2012'
2,1,'2012'
3,1,'2013'
3,1,'2013'
3,1,'2013'
4,NULL,'NULL'
4,NULL,'NULL'
4,NULL,'NULL'
4,NULL,'NULL'
4,NULL,'NULL'
5,NULL,'2013'
5,NULL,'2013'
5,NULL,'2013'
5,NULL,'2013'
5,NULL,'2013'
---- TYPES
int,int,string
====
---- QUERY
alter table t_part drop partition (j=NULL, s=NULL)
---- RESULTS
====
---- QUERY
select i, j, s from t_part
---- RESULTS
1,1,'2012/withslash'
2,1,'2012'
2,1,'2012'
3,1,'2013'
3,1,'2013'
3,1,'2013'
5,NULL,'2013'
5,NULL,'2013'
5,NULL,'2013'
5,NULL,'2013'
5,NULL,'2013'
---- TYPES
int,int,string
====
---- QUERY
alter table t_part drop partition (j=NULL, s=trim('  2013  '))
---- RESULTS
====
---- QUERY
select i, j, s from t_part
---- RESULTS
1,1,'2012/withslash'
2,1,'2012'
2,1,'2012'
3,1,'2013'
3,1,'2013'
3,1,'2013'
---- TYPES
int,int,string
====
---- QUERY
alter table t_part drop partition (j=1, s='2013')
---- RESULTS
====
---- QUERY
select i, j, s from t_part
---- RESULTS
1,1,'2012/withslash'
2,1,'2012'
2,1,'2012'
---- TYPES
int,int,string
====
---- QUERY
alter table t_part drop partition (j=1, s='2012/withslash')
---- RESULTS
====
---- QUERY
select i, j, s from t_part
---- RESULTS
2,1,'2012'
2,1,'2012'
---- TYPES
int,int,string
====
---- QUERY
# Test that empty string as partition column maps onto NULL
# using static partition insert
insert into table t_part partition(j=2, s='')
select 1 from functional.alltypes limit 1
---- RESULTS
j=2/s=__HIVE_DEFAULT_PARTITION__/: 1
====
---- QUERY
# Test that empty string as partition column maps onto NULL
# using dynamic partition insert
insert into table t_part partition(j=2, s)
select 10, '' from functional.alltypes limit 1
---- RESULTS
j=2/s=__HIVE_DEFAULT_PARTITION__/: 1
====
---- QUERY
# Validate the previous inserts
select i, j, s from t_part where s is NULL
---- RESULTS
1,2,'NULL'
10,2,'NULL'
---- TYPES
int,int,string
====
---- QUERY
# Drop default partition using empty string as key
alter table t_part drop partition (j=2, s='')
---- RESULTS
====
---- QUERY
# Validate previous partition drop
select i, j, s from t_part where s is NULL
---- RESULTS
---- TYPES
int,int,string
====
---- QUERY
# rename a partitioned table
alter table t_part rename to t_part2
---- RESULTS
====
---- QUERY
# only the new table shows up
show tables like 't_part*'
---- RESULTS
't_part2'
====
---- QUERY
# should be able to read the same data from this table
select i, j, s from t_part2
---- RESULTS
2,1,'2012'
2,1,'2012'
---- TYPES
int,int,string
====
---- QUERY
create external table alltypes_test like functional.alltypes
---- RESULTS
====
---- QUERY
alter table alltypes_test add partition(month=4, year=2009)
---- RESULTS
====
---- QUERY
alter table alltypes_test add partition(month=5, year=2009)
---- RESULTS
====
---- QUERY
# Table is empty
select int_col from alltypes_test
---- RESULTS
---- TYPES
int
====
---- QUERY
# Point one partition at some data (file format does not match table)
alter table alltypes_test partition(month=4, year=2009)
set location '/test-warehouse/alltypes_seq_snap/year=2009/month=4'
---- RESULTS
====
---- QUERY
select int_col from alltypes_test
group by int_col order by 1 limit 100
---- RESULTS
0
NULL
---- TYPES
int
====
---- QUERY
alter table alltypes_test partition(month=4, year=2009)
set fileformat sequencefile
---- RESULTS
====
---- QUERY
select int_col, count(*) from alltypes_test
group by int_col order by 1 limit 100
---- RESULTS
0,30
1,30
2,30
3,30
4,30
5,30
6,30
7,30
8,30
9,30
---- TYPES
int,bigint
====
---- QUERY
# Point the other partition at some more data. This time in a different
# file format.
alter table alltypes_test partition(month=cast(1+4 as int), year=cast(100*20+9 as int))
set location '/test-warehouse/alltypes_rc/year=2009/month=5'
---- RESULTS
====
---- QUERY
alter table alltypes_test partition(month=cast(2+3 as int), year=2009)
set fileformat rcfile
---- RESULTS
====
---- QUERY
select int_col, count(*) from alltypes_test
group by int_col order by 1  limit 100
---- RESULTS
0,61
1,61
2,61
3,61
4,61
5,61
6,61
7,61
8,61
9,61
---- TYPES
int,bigint
====
---- QUERY
# Show the table stats before altering.
show table stats alltypes_test
---- LABELS
YEAR, MONTH, #ROWS, #FILES, SIZE, BYTES CACHED, FORMAT
---- RESULTS
2009,4,-1,1,regex:.+KB,'NOT CACHED','SEQUENCE_FILE'
2009,5,-1,1,regex:.+KB,'NOT CACHED','RC_FILE'
Total,,-1,2,regex:.+KB,'0B',''
---- TYPES
INT, INT, BIGINT, BIGINT, STRING, STRING, STRING
====
---- QUERY
# Test altering the 'numRows' table property of a table.
alter table alltypes_test set tblproperties ('numRows'='200')
---- RESULTS
====
---- QUERY
# Test altering the 'numRows' table property of a partition.
alter table alltypes_test partition(year=2009, month=4)
set tblproperties ('numRows'='30')
---- RESULTS
====
---- QUERY
# Show the table stats after altering the table and partition stats.
show table stats alltypes_test
---- LABELS
YEAR, MONTH, #ROWS, #FILES, SIZE, BYTES CACHED, FORMAT
---- RESULTS
2009,4,30,1,regex:.+KB,'NOT CACHED','SEQUENCE_FILE'
2009,5,-1,1,regex:.+KB,'NOT CACHED','RC_FILE'
Total,,200,2,regex:.+KB,'0B',''
---- TYPES
INT, INT, BIGINT, BIGINT, STRING, STRING, STRING
====
---- QUERY
# IMPALA-1016: Testing scanning newly added columns
DROP TABLE IF EXISTS imp1016
====
---- QUERY
CREATE TABLE imp1016 (string1 string)
---- RESULTS
====
---- QUERY
INSERT INTO imp1016 VALUES ('test')
---- RESULTS
: 1
====
---- QUERY
ALTER TABLE imp1016 ADD COLUMNS (string2 string)
---- RESULTS
====
---- QUERY
DESCRIBE imp1016
---- RESULTS
'string1','string',''
'string2','string',''
---- TYPES
string,string,string
====
---- QUERY
SELECT * FROM imp1016
---- RESULTS
'test','NULL'
---- TYPES
string,string
====
---- QUERY
SELECT string1 FROM imp1016
---- RESULTS
'test'
---- TYPES
string
====
---- QUERY
SELECT string2 FROM imp1016
---- RESULTS
'NULL'
---- TYPES
string
====
---- QUERY
SELECT COUNT(DISTINCT string1) FROM imp1016
---- RESULTS
1
---- TYPES
bigint
====
---- QUERY
SELECT COUNT(DISTINCT string2) FROM imp1016
---- RESULTS
0
---- TYPES
bigint
====
---- QUERY
# Create a larger table to test scanning newly added columns
DROP TABLE IF EXISTS imp1016Large
====
---- QUERY
CREATE TABLE imp1016Large (string1 string)
---- RESULTS
====
---- QUERY
# There is a codepath that operates on chunks of 1024 tuples, inserting
# more than 1024 tuples
INSERT INTO imp1016Large SELECT 'test' FROM functional.alltypes LIMIT 2000
---- RESULTS
: 2000
====
---- QUERY
ALTER TABLE imp1016Large ADD COLUMNS (string2 string)
---- RESULTS
====
---- QUERY
DESCRIBE imp1016Large
---- RESULTS
'string1','string',''
'string2','string',''
---- TYPES
string,string,string
====
---- QUERY
SELECT COUNT(string2) FROM imp1016Large
---- RESULTS
0
---- TYPES
bigint
====
---- QUERY
SELECT COUNT(*), COUNT(DISTINCT string1) FROM imp1016Large
---- RESULTS
2000,1
---- TYPES
bigint,bigint
====
---- QUERY
SELECT COUNT(*), COUNT(DISTINCT string2) FROM imp1016Large
---- RESULTS
2000,0
---- TYPES
bigint,bigint
====