Apache pig 使用Pig条件运算符实现or？

假设我有一些表f，由以下列组成：

a, b
0, 1
0, 0
0, 0
0, 1
1, 0
1, 1

我想创建一个新的列c，它等于a | b

我尝试了以下方法：

f = foreach f generate a, b, ((a or b) == 1) ? 1 : 0 as c;

但收到以下错误：

ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1200: Pig script failed to parse: NoViableAltException(91@[])

---

或

条件构造不正确，您能试试吗

f = foreach f generate a, b, (((a==1) or (b==1))?1:0) AS c;

示例：
输入：

0,1
0,0
0,0
0,1
1,0
1,1

A = LOAD 'input' USING PigStorage(',') AS (a:int,b:int);
B = foreach A generate a, b, (((a==1) or (b==1))?1:0) AS c;
DUMP B;

(0,1,1)
(0,0,0)
(0,0,0)
(0,1,1)
(1,0,1)
(1,1,1)

PigScript:

0,1
0,0
0,0
0,1
1,0
1,1

A = LOAD 'input' USING PigStorage(',') AS (a:int,b:int);
B = foreach A generate a, b, (((a==1) or (b==1))?1:0) AS c;
DUMP B;

(0,1,1)
(0,0,0)
(0,0,0)
(0,1,1)
(1,0,1)
(1,1,1)

输出：

0,1
0,0
0,0
0,1
1,0
1,1

A = LOAD 'input' USING PigStorage(',') AS (a:int,b:int);
B = foreach A generate a, b, (((a==1) or (b==1))?1:0) AS c;
DUMP B;

(0,1,1)
(0,0,0)
(0,0,0)
(0,1,1)
(1,0,1)
(1,1,1)