jprdonnelly/impala
1
0
Fork 0
mirror of https://github.com/apache/impala.git synced 2026-01-05 21:00:54 -05:00
Code Issues Projects Releases Wiki Activity

IMPALA-1001: Bit and byte manipulation functions

Browse Source 
Bit and byte functions for compatibility with Teradata: bitand, bitor, bitxor, bitnot,
countset, getbit, setbit, shiftleft, shiftright, rotateleft, rotateright.
Interfaces and behavior follow Teradata documentation.

All bit* functions are compatible with DB2.  bitand only is compatible with Oracle.

Change-Id: Idba3fb7beb029de493b602e6279aa68e32688df3
This commit is contained in:
Tim Armstrong
2015-07-09 14:40:27 -07:00
parent d238293e0c
commit e151ebaa71
9 changed files with 625 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

71
testdata/workloads/functional-query/queries/QueryTest/exprs.test vendored
View File

@@ -1889,3 +1889,74 @@ select madlib_vector(1.0, 2.0, NULL);
---- RESULTS
---- CATCH
madlib vector entry 2 is NULL
====
---- QUERY
# Test countset
select tinyint_col, countset(tinyint_col), countset(tinyint_col, 0),
smallint_col, countset(smallint_col), countset(smallint_col, 0),
int_col, countset(int_col), countset(int_col, 0),
bigint_col, countset(bigint_col), countset(bigint_col, 0)
from alltypestiny
where id <= 1
order by id
---- RESULTS
0,0,8,0,0,16,0,0,32,0,0,64
1,1,7,1,1,15,1,1,31,10,2,62
---- TYPES
TINYINT,INT,INT,SMALLINT,INT,INT,INT,INT,INT,BIGINT,INT,INT
====
---- QUERY
# Test basic bitwise ops
select bitand(tinyint_col, int_col),
bitor(smallint_col, bigint_col),
bitxor(tinyint_col, smallint_col),
bitxor(int_col, bigint_col),
bitxor(int_col, bitnot(int_col)),
bitnot(tinyint_col)
from alltypes
where id <= 3
order by id
---- RESULTS
0,0,0,0,-1,-1
1,11,0,11,-1,-2
2,22,0,22,-1,-3
3,31,0,29,-1,-4
---- TYPES
INT,BIGINT,SMALLINT,BIGINT,INT,TINYINT
====
---- QUERY
# Test getbit and setbit
select bigint_col,
getbit(bigint_col,0),
getbit(bigint_col,1),
getbit(bigint_col,int_col),
setbit(bigint_col,0),
setbit(bigint_col,1,0)
from alltypes
where id <= 3
order by id
---- RESULTS
0,0,0,0,1,0
10,0,1,1,11,8
20,0,0,1,21,20
30,0,1,1,31,28
---- TYPES
BIGINT,TINYINT,TINYINT,TINYINT,BIGINT,BIGINT
====
---- QUERY
# Test shifts and rotates
select int_col,
shiftright(int_col,1),
shiftleft(int_col,2),
rotateleft(int_col,30),
rotateright(int_col,2)
from alltypes
where id <= 3
order by id
---- RESULTS
0,0,0,0,0
1,0,4,1073741824,1073741824
2,1,8,-2147483648,-2147483648
3,1,12,-1073741824,-1073741824
---- TYPES
INT,INT,INT,INT,INT