Apache Pig: loop through list
0
I have the dataset:
(0,(1),(2),(3),(6),(8),(9))
(1,(0),(5),(9))
(2,(0),(9))
(3,(0),(4),(5),(7),(9))
(4,(3),(8))
(5,(1),(3),(6),(8))
(6,(0),(5),(9))
(7,(3),(8))
(8,(0),(4),(5),(7))
(9,(0),(1),(2),(3),(6))
Which is representing the dataset:
friends: user: int,list: friend: (id: int)
in apache pig. I need to loop through the list of friends which is list: friend: (id: int). How can I loop through the list?
apache apache-pig
edited Nov 15 '18 at 13:23
Rajeev Atmakuri
6941819
asked Nov 13 '18 at 23:05
Ali SymeriAli Symeri
1
add a comment |
0
I have the dataset:
(0,(1),(2),(3),(6),(8),(9))
(1,(0),(5),(9))
(2,(0),(9))
(3,(0),(4),(5),(7),(9))
(4,(3),(8))
(5,(1),(3),(6),(8))
(6,(0),(5),(9))
(7,(3),(8))
(8,(0),(4),(5),(7))
(9,(0),(1),(2),(3),(6))
Which is representing the dataset:
friends: user: int,list: friend: (id: int)
in apache pig. I need to loop through the list of friends which is list: friend: (id: int). How can I loop through the list?
apache apache-pig
edited Nov 15 '18 at 13:23
Rajeev Atmakuri
6941819
asked Nov 13 '18 at 23:05
Ali SymeriAli Symeri
1
Have a look at theFLATTENoperator. With it you can get each element of your list into a record of its own. Then apply required translation logic to you flattented relation to get the closest loop-like behavior you can achieve in vanilla Pig.
– Rajeev Atmakuri
Nov 15 '18 at 12:16
add a comment |
0
0
0
I have the dataset:
(0,(1),(2),(3),(6),(8),(9))
(1,(0),(5),(9))
(2,(0),(9))
(3,(0),(4),(5),(7),(9))
(4,(3),(8))
(5,(1),(3),(6),(8))
(6,(0),(5),(9))
(7,(3),(8))
(8,(0),(4),(5),(7))
(9,(0),(1),(2),(3),(6))
Which is representing the dataset:
friends: user: int,list: friend: (id: int)
in apache pig. I need to loop through the list of friends which is list: friend: (id: int). How can I loop through the list?
apache apache-pig
edited Nov 15 '18 at 13:23
Rajeev Atmakuri
6941819
asked Nov 13 '18 at 23:05
Ali SymeriAli Symeri
1
I have the dataset:
(0,(1),(2),(3),(6),(8),(9))
(1,(0),(5),(9))
(2,(0),(9))
(3,(0),(4),(5),(7),(9))
(4,(3),(8))
(5,(1),(3),(6),(8))
(6,(0),(5),(9))
(7,(3),(8))
(8,(0),(4),(5),(7))
(9,(0),(1),(2),(3),(6))
Which is representing the dataset:
friends: user: int,list: friend: (id: int)
in apache pig. I need to loop through the list of friends which is list: friend: (id: int). How can I loop through the list?
apache apache-pig
apache apache-pig
edited Nov 15 '18 at 13:23
Rajeev Atmakuri
6941819
asked Nov 13 '18 at 23:05
Ali SymeriAli Symeri
1
edited Nov 15 '18 at 13:23
Rajeev Atmakuri
6941819
asked Nov 13 '18 at 23:05
Ali SymeriAli Symeri
1
edited Nov 15 '18 at 13:23
Rajeev Atmakuri
6941819
edited Nov 15 '18 at 13:23
Rajeev Atmakuri
6941819
edited Nov 15 '18 at 13:23
Rajeev Atmakuri
6941819
6941819
asked Nov 13 '18 at 23:05
Ali SymeriAli Symeri
1
asked Nov 13 '18 at 23:05
Ali SymeriAli Symeri
1
asked Nov 13 '18 at 23:05
Ali SymeriAli Symeri
1
1
Have a look at theFLATTENoperator. With it you can get each element of your list into a record of its own. Then apply required translation logic to you flattented relation to get the closest loop-like behavior you can achieve in vanilla Pig.
– Rajeev Atmakuri
Nov 15 '18 at 12:16
add a comment |
Have a look at theFLATTENoperator. With it you can get each element of your list into a record of its own. Then apply required translation logic to you flattented relation to get the closest loop-like behavior you can achieve in vanilla Pig.
– Rajeev Atmakuri
Nov 15 '18 at 12:16
Have a look at the
FLATTEN operator. With it you can get each element of your list into a record of its own. Then apply required translation logic to you flattented relation to get the closest loop-like behavior you can achieve in vanilla Pig.– Rajeev Atmakuri
Nov 15 '18 at 12:16
Have a look at the
FLATTEN operator. With it you can get each element of your list into a record of its own. Then apply required translation logic to you flattented relation to get the closest loop-like behavior you can achieve in vanilla Pig.– Rajeev Atmakuri
Nov 15 '18 at 12:16
add a comment |
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Have a look at the
FLATTENoperator. With it you can get each element of your list into a record of its own. Then apply required translation logic to you flattented relation to get the closest loop-like behavior you can achieve in vanilla Pig.– Rajeev Atmakuri
Nov 15 '18 at 12:16