Apache pig 无法使用PIG存储处理数据

我想要一个用pig脚本处理的文件

我的输入文件如下（

&

是列delimeter，

$

是行delimeter）：

我试过这个：

a = LOAD 'try.txt' USING PigStorage ('$') as (col1:chararray); b = FOREACH a Generate REPLACE(col1, '&', ','); 

我试图在第一个delimeter之后分离一个元组，但我使用这个只得到第一个元组

Outputfile我正在查找的内容：

(abc,bc,121,aa)
(aaj,jkj,print,star)
(aa,tss,jjlk,121)

有什么帮助吗？

你能试试这个吗

选项1:

输入

abc&bc&121&aa$aaj&jkj&print&star$aa&tss&jjlk&121

PigScript:

A = LOAD 'input' AS (line:chararray);
B = FOREACH A GENERATE FLATTEN(TOKENIZE(line,'$')) AS splittedLine;
C = FOREACH B GENERATE FLATTEN(STRSPLIT(splittedLine,'&')) AS(col1,col2,col3,col4);
DUMP C;

(abc,bc,121,aa)
(aaj,jkj,print,star)
(aa,tss,jjlk,121)

  A = LOAD 'input' USING PigStorage('$') AS (row1:chararray,row2:chararray,row3:chararray);
  B = FOREACH A GENERATE FLATTEN(TOBAG(STRSPLIT(row1,'&'),STRSPLIT(row2,'&'),STRSPLIT(row3,'&')));
  DUMP B;

(abc,bc,121,aa)
(aaj,jkj,print,star)
(aa,tss,jjlk,121)

输出：

A = LOAD 'input' AS (line:chararray);
B = FOREACH A GENERATE FLATTEN(TOKENIZE(line,'$')) AS splittedLine;
C = FOREACH B GENERATE FLATTEN(STRSPLIT(splittedLine,'&')) AS(col1,col2,col3,col4);
DUMP C;

(abc,bc,121,aa)
(aaj,jkj,print,star)
(aa,tss,jjlk,121)

  A = LOAD 'input' USING PigStorage('$') AS (row1:chararray,row2:chararray,row3:chararray);
  B = FOREACH A GENERATE FLATTEN(TOBAG(STRSPLIT(row1,'&'),STRSPLIT(row2,'&'),STRSPLIT(row3,'&')));
  DUMP B;

(abc,bc,121,aa)
(aaj,jkj,print,star)
(aa,tss,jjlk,121)

选项2:

A = LOAD 'input' AS (line:chararray);
B = FOREACH A GENERATE FLATTEN(TOKENIZE(line,'$')) AS splittedLine;
C = FOREACH B GENERATE FLATTEN(STRSPLIT(splittedLine,'&')) AS(col1,col2,col3,col4);
DUMP C;

(abc,bc,121,aa)
(aaj,jkj,print,star)
(aa,tss,jjlk,121)

  A = LOAD 'input' USING PigStorage('$') AS (row1:chararray,row2:chararray,row3:chararray);
  B = FOREACH A GENERATE FLATTEN(TOBAG(STRSPLIT(row1,'&'),STRSPLIT(row2,'&'),STRSPLIT(row3,'&')));
  DUMP B;

(abc,bc,121,aa)
(aaj,jkj,print,star)
(aa,tss,jjlk,121)

PigScript:

A = LOAD 'input' AS (line:chararray);
B = FOREACH A GENERATE FLATTEN(TOKENIZE(line,'$')) AS splittedLine;
C = FOREACH B GENERATE FLATTEN(STRSPLIT(splittedLine,'&')) AS(col1,col2,col3,col4);
DUMP C;

(abc,bc,121,aa)
(aaj,jkj,print,star)
(aa,tss,jjlk,121)

  A = LOAD 'input' USING PigStorage('$') AS (row1:chararray,row2:chararray,row3:chararray);
  B = FOREACH A GENERATE FLATTEN(TOBAG(STRSPLIT(row1,'&'),STRSPLIT(row2,'&'),STRSPLIT(row3,'&')));
  DUMP B;

(abc,bc,121,aa)
(aaj,jkj,print,star)
(aa,tss,jjlk,121)

输出：

A = LOAD 'input' AS (line:chararray);
B = FOREACH A GENERATE FLATTEN(TOKENIZE(line,'$')) AS splittedLine;
C = FOREACH B GENERATE FLATTEN(STRSPLIT(splittedLine,'&')) AS(col1,col2,col3,col4);
DUMP C;

(abc,bc,121,aa)
(aaj,jkj,print,star)
(aa,tss,jjlk,121)

  A = LOAD 'input' USING PigStorage('$') AS (row1:chararray,row2:chararray,row3:chararray);
  B = FOREACH A GENERATE FLATTEN(TOBAG(STRSPLIT(row1,'&'),STRSPLIT(row2,'&'),STRSPLIT(row3,'&')));
  DUMP B;

(abc,bc,121,aa)
(aaj,jkj,print,star)
(aa,tss,jjlk,121)

---

嗨，saurav，欢迎来到Stack Overflow。你能为我们提供你已经尝试过的任何东西的例子吗？这可能有助于人们理解您的困境；b=每个a生成替换（col1，，，，，）；我试图在第一个delimeter之后分离一个元组，但我使用这个只得到第一个元组。感谢您的帮助：）请将您所有的尝试都放到您的问题中，您可以使用

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