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# SUB: Multiquery | |
# Please include a brief description here. | |
# - _TEST_ The first example; one that is defined in the bug with one split | |
# - in the map phase | |
# - _TEST_ Multiple side files, all in map phase. | |
# - _TEST_ Two loads and two stores in map phase. | |
# - _TEST_ One split added in reduce phase and map-only splitee. | |
# - _TEST_ One split added in reduce phase and one map-reduce splitee | |
# - _TEST_ One split in reduce phase and two Map-Reduce splitees. | |
# - _TEST_ Two loads and two stores in reduce phase | |
# - _TEST_ Explicit split with two side files. | |
# - _TEST_ Explicit split with order by and two side files. | |
# - _TEST_ Implicit split with multiple side files. | |
# - _TEST_ Streaming with multiple stores. | |
# - _TEST_ Script with intermediate stores. | |
# - _TEST_ Implicit split with order by and multiple side files. | |
# - _TEST_ Self join using fragment replicate join with multiple side files. | |
# - _TEST_ PigMix Test Case L12. | |
# - _TEST_ One split in map phase and two Map-Reduce splitees with mixed combiners. | |
# - _TEST_ One split in map phase and two Map-Reduce splitees without combiners. | |
# - _TEST_ Splittees with different map key types and nested splits. | |
# - _TEST_ Splittees with different map key type. | |
# - _TEST_ Streaming in demux. | |
# - _TEST_ Streaming in nested demux. | |
# - _TEST_ PigMix Test Case L12 version 2 | |
$cfg = { | |
'driver' => 'Pig', | |
'nummachines' => 5, | |
'groups' => [ | |
{ | |
'name' => 'MultiQuery', | |
'floatpostprocess' => 1, | |
'delimiter' => ' ', | |
'tests' => [ | |
{ | |
# The first exmaple; one that is defined in the bug with one split | |
# in the map phase | |
'num' => 1, | |
'pig' => q# a = load ':INPATH:/singlefile/studenttab10k' as (name: chararray, age: int, gpa: float); | |
b = filter a by age < 22; store b into ':OUTPATH:.1'; | |
c = group b by age; | |
d = foreach c generate group, SUM(b.gpa); | |
store d into ':OUTPATH:.2'; #, | |
'sql' => "select name, age, gpa from studenttab10k where age < 22; | |
select age, sum(gpa) from studenttab10k where age < 22 group by age;", | |
}, | |
{ | |
# Multiple side files, all in map phase. | |
'num' => 2, | |
'pig' => q# a = load ':INPATH:/singlefile/studenttab10k' as (name: chararray, age: int, gpa: float); | |
b = filter a by age < 22; | |
store b into ':OUTPATH:.1'; | |
c = filter b by gpa > 3.0; | |
store c into ':OUTPATH:.2'; | |
d = filter c by name < 'm'; | |
store d into ':OUTPATH:.3'; #, | |
'sql' => "select name, age, gpa from studenttab10k where age < 22; | |
select name, age, gpa from studenttab10k where age < 22 and gpa > 3.0; | |
select name, age, gpa from studenttab10k where age < 22 and gpa > 3.0 and name < 'm';", | |
}, | |
{ | |
# Two loads and two stores in map phase. | |
'num' => 3, | |
'pig' => q# a = load ':INPATH:/singlefile/studenttab10k' as (name, age, gpa); | |
b = load ':INPATH:/singlefile/votertab10k' as (name, age, registration, contributions); | |
c = filter a by age < 20; | |
d = filter b by age < 20; | |
store c into ':OUTPATH:.1'; | |
store d into ':OUTPATH:.2'; | |
e = cogroup c by name, d by name; | |
f = foreach e generate flatten(c), flatten(d); | |
store f into ':OUTPATH:.3'; #, | |
'sql' => "select name, age, gpa from studenttab10k where age < 20; | |
select name, age, registration, contributions from votertab10k where age < 20; | |
select a.name, a.age, a.gpa, b.name, b.age, b.registration, b.contributions | |
from studenttab10k as a full outer join votertab10k as b using(name) | |
where a.age < 20 and b.age < 20;", | |
}, | |
{ | |
# One split added in reduce phase and map-only splitee. | |
'num' => 4, | |
'pig' => q# a = load ':INPATH:/singlefile/studenttab10k' as (name: chararray, age: int, gpa: float); | |
b = filter a by gpa < 3.0; | |
c = group b by age; | |
d = foreach c generate group, AVG(b.gpa); | |
store d into ':OUTPATH:.1'; | |
e = filter d by $1 > 1.5; | |
store e into ':OUTPATH:.2'; #, | |
'sql' => "select age, avg(gpa) from studenttab10k where gpa < 3.0 group by age; | |
select age, avg(gpa) from studenttab10k where gpa < 3.0 group by age having avg(gpa) > 1.5;", | |
}, | |
{ | |
# One split added in reduce phase and one map-reduce splitee | |
'num' => 5, | |
'pig' => q# a = load ':INPATH:/singlefile/studenttab10k' as (name: chararray, age: int, gpa: float); | |
b = filter a by gpa < 3.0; | |
c = group b by age; | |
d = foreach c generate group, AVG(b.gpa); | |
store d into ':OUTPATH:.1'; | |
e = filter d by $1 > 1.5; | |
f = group e by $1; | |
g = foreach f generate group, SUM(e.$0); | |
store g into ':OUTPATH:.2'; #, | |
'sql' => "select age, avg(gpa) from studenttab10k where gpa < 3.0 group by age; | |
select t.b, sum(t.a) from (select age as a, avg(gpa) as b from studenttab10k | |
where gpa < 3.0 group by age having avg(gpa) > 1.5) as t group by t.b;", | |
}, | |
{ | |
# One split in reduce phase and two Map-Reduce splitees. | |
'num' => 6, | |
'pig' => q# a = load ':INPATH:/singlefile/studenttab10k' as (name: chararray, age: int, gpa: float); | |
b = filter a by gpa < 3.0; | |
c = group b by age; | |
d = foreach c generate group, AVG(b.gpa); | |
e = filter d by $1 > 1.5; | |
e1= group e by $1; | |
e2 = foreach e1 generate group, SUM(e.$0); | |
store e2 into ':OUTPATH:.1'; | |
f = filter d by $1 <= 1.5; | |
f1 = group f by $1; | |
f2 = foreach f1 generate group, COUNT(f.$0); | |
store f2 into ':OUTPATH:.2'; #, | |
'sql' => "select t.c1, sum(t.c0) from (select age as c0, avg(gpa) as c1 from studenttab10k | |
where gpa < 3.0 group by age having avg(gpa) > 1.5) as t group by t.c1; | |
select t.c1, count(t.c0) from (select age as c0, avg(gpa) as c1 from studenttab10k | |
where gpa < 3.0 group by age having avg(gpa) <= 1.5) as t group by t.c1;", | |
}, | |
{ | |
# Two loads and two stores in reduce phase | |
'num' => 7, | |
'pig' => q# a = load ':INPATH:/singlefile/studenttab10k' as (name, age, gpa); | |
b = load ':INPATH:/singlefile/votertab10k' as (name, age, registration, contributions); | |
c = filter a by age < 20; | |
d = filter b by age < 20; | |
e = cogroup c by name, d by name; | |
f = foreach e generate flatten(c), flatten(d); | |
g = group f by d::age; | |
h = foreach g generate group, SUM(f.gpa); | |
store h into ':OUTPATH:.1'; | |
e = filter f by c::gpa < 3.0; | |
store e into ':OUTPATH:.2'; #, | |
'sql' => "select c5, sum(c3) from (select a.name as c1, a.age as c2, a.gpa as c3, b.name as c4, | |
b.age as c5, b.registration as c6, b.contributions as c7 | |
from studenttab10k as a full outer join votertab10k as b using(name) | |
where a.age < 20 and b.age < 20) as t group by t.c5; | |
select a.name, a.age, a.gpa, b.name, b.age, b.registration, b.contributions | |
from studenttab10k as a full outer join votertab10k as b using(name) | |
where a.age < 20 and b.age < 20 and a.gpa < 3.0;", | |
}, | |
{ | |
# Explicit split with two side files. | |
'num'=> 8, | |
'pig' => q# a = load ':INPATH:/singlefile/studenttab10k' as (name, age, gpa); | |
split a into a1 if name > 'm', a2 if name <= 'm'; | |
store a1 into ':OUTPATH:.1'; | |
store a2 into ':OUTPATH:.2'; | |
b = cogroup a1 by age, a2 by age; | |
c = foreach b generate flatten(a1), flatten(a2); | |
store c into ':OUTPATH:.3'; #, | |
'sql' => "select name, age, gpa from studenttab10k where name > 'm'; | |
select name, age, gpa from studenttab10k where name <= 'm'; | |
select A.name, A.age, A.gpa, B.name, B.age, B.gpa | |
from (select * from studenttab10k where name > 'm') as A | |
join (select * from studenttab10k where name <= 'm') as B using (age);", | |
}, | |
{ | |
# Explicit split with order by and two side files. | |
'num'=> 9, | |
'pig' => q# a = load ':INPATH:/singlefile/studenttab10k' as (name:chararray, age:int, gpa:float); | |
split a into a1 if age > 50, a2 if name < 'm'; | |
b2 = distinct a2; | |
b1 = order a1 by name; | |
store b2 into ':OUTPATH:.2'; | |
store b1 into ':OUTPATH:.1'; | |
c = cogroup b2 by name, b1 by name; | |
d = foreach c generate flatten(group), COUNT($1), COUNT($2); | |
store d into ':OUTPATH:.3'; #, | |
'sql' => "select name, age, gpa from studenttab10k where age > 50 order by name; | |
select distinct name, age, gpa from studenttab10k where name < 'm'; | |
select name, count(A.name), count(B.name) | |
from (select distinct name from studenttab10k where name < 'm') as A | |
join (select name from studenttab10k where age > 50) as B using (name) group by name;", | |
'verify_with_pig' => 1, | |
'verify_pig_version' => 'old', | |
}, | |
{ | |
# Implicit split with multiple side files. | |
'num'=> 10, | |
'pig' => q# a = load ':INPATH:/singlefile/studenttab10k' as (name:chararray, age:int, gpa:float); | |
b = filter a by age > 50; | |
c = filter a by gpa > 3.0; | |
store c into ':OUTPATH:.1'; | |
d = cogroup b by name, c by name; | |
e = foreach d generate flatten(b), flatten(c); | |
store e into ':OUTPATH:.2'; | |
f = filter e by b::age < 75; | |
store f into ':OUTPATH:.3'; #, | |
'sql' => "select name, age, gpa from studenttab10k where gpa > 3.0; | |
select A.name, A.age, A.gpa, B.name, B.age, B.gpa | |
from (select * from studenttab10k where age > 50) as A | |
join (select * from studenttab10k where gpa > 3.0) as B using (name); | |
select A.name, A.age, A.gpa, B.name, B.age, B.gpa | |
from (select * from studenttab10k where age > 50) as A | |
join (select * from studenttab10k where gpa > 3.0) as B using (name) where A.age < 75;", | |
}, | |
{ | |
# Streaming with multiple stores | |
'num' => 11, | |
'pig' => q# define CMD1 `perl -ne 'print $_;'`; | |
define CMD2 `perl -ne 'print $_;'`; | |
A = load ':INPATH:/singlefile/studenttab10k' as (name, age, gpa); | |
B = stream A through CMD1 as (name, age, gpa); | |
store B into ':OUTPATH:.1'; | |
C = stream B through CMD2 as (name, age, gpa); | |
D = JOIN B by name, C by name; | |
store D into ':OUTPATH:.2'; #, | |
'sql' => "select name, age, gpa from studenttab10k; | |
select A.name, A.age, A.gpa, B.name, B.age, B.gpa | |
from studenttab10k as A join studenttab10k as B using(name);", | |
}, | |
{ | |
# With intermediate store | |
'num' => 12, | |
'pig' => q# A = load ':INPATH:/singlefile/studenttab10k' as (name, age, gpa); | |
store A into ':OUTPATH:.1'; | |
B = load ':OUTPATH:.1'; | |
store B into ':OUTPATH:.2'; #, | |
'sql' => "select name, age, gpa from studenttab10k; | |
select name, age, gpa from studenttab10k;", | |
}, | |
{ | |
# Implicit split with order by and multiple side files. | |
'num'=>13, | |
'pig' => q# a = load ':INPATH:/singlefile/studenttab10k' as (name:chararray, age:int, gpa:float); | |
b = filter a by age > 50; | |
c = filter a by gpa > 3.0; | |
store c into ':OUTPATH:.1'; | |
d = cogroup b by name, c by name; | |
e = foreach d generate flatten(b), flatten(c); | |
f = order e by b::name; | |
store e into ':OUTPATH:.2'; | |
f = filter e by b::age < 75; | |
store f into ':OUTPATH:.3'; #, | |
'sql' => "select name, age, gpa from studenttab10k where gpa > 3.0; | |
select A.name, A.age, A.gpa, B.name, B.age, B.gpa | |
from (select * from studenttab10k where age > 50) as A | |
join (select * from studenttab10k where gpa > 3.0) as B using (name) | |
order by A.name; | |
select A.name, A.age, A.gpa, B.name, B.age, B.gpa | |
from (select * from studenttab10k where age > 50) as A | |
join (select * from studenttab10k where gpa > 3.0) as B using (name) | |
where A.age < 75 order by A.name;", | |
}, | |
# Self join using fragment replicate join with multiple side files | |
{ | |
'num' => 14, | |
'pig' => q# a = load ':INPATH:/singlefile/studenttab10k' as (name:chararray, age:int, gpa:double); | |
b = load ':INPATH:/singlefile/studenttab10k' as (name:chararray, age:int, gpa:double); | |
c = filter a by age > 50; | |
store c into ':OUTPATH:.1'; | |
d = filter b by gpa > 3.0; | |
store d into ':OUTPATH:.2'; | |
e = join c by gpa, d by gpa using 'repl'; | |
store e into ':OUTPATH:.3'; #, | |
'sql' => "select name, age, gpa from studenttab10k where age > 50; | |
select name, age, gpa from studenttab10k where gpa > 3.0; | |
select a.name, a.age, a.gpa, b.name, b.age, b.gpa | |
from studenttab10k as a join studenttab10k as b using(gpa) | |
where a.age > 50 and b.gpa > 3.0;", | |
}, | |
# PigMix Test Case L12 | |
{ | |
'num' => 15, | |
'pig' => q# a = load ':INPATH:/singlefile/votertab10k' as (name, age, registration, contributions); | |
b = foreach a generate name, age, contributions; | |
split b into c1 if age > 50, c2 if age <= 50; | |
split c1 into d1 if name < 'm', d2 if name >= 'm'; | |
e = group c2 by name; | |
e1 = foreach e generate group, SUM(c2.contributions); | |
store e1 into ':OUTPATH:.1'; | |
f = group d1 by name; | |
f1 = foreach f generate group, MAX(d1.contributions); | |
store f1 into ':OUTPATH:.2'; | |
g = group d2 by name; | |
g1 = foreach g generate group, COUNT(d2); | |
store g1 into ':OUTPATH:.3'; #, | |
'sql' => "select name, sum(contributions) from votertab10k where age <= 50 group by name; | |
select name, max(contributions) from votertab10k where (age > 50 and name < 'm') group by name; | |
select name, count(*) from votertab10k where (age > 50 and name >= 'm') group by name;", | |
}, | |
# One split in map phase and two Map-Reduce splitees with mixed combiner. | |
{ | |
'num' => 16, | |
'pig' => q# a = load ':INPATH:/singlefile/studenttab10k' as (name: chararray, age: int, gpa: float); | |
b = filter a by gpa < 3.0; | |
c = filter a by gpa >= 3.0; | |
d = group b by age; | |
e = foreach d generate group, AVG(b.gpa); | |
store e into ':OUTPATH:.1'; | |
f = group c by age; | |
g = foreach f generate group, MAX(c.gpa) - MIN(c.gpa); | |
store g into ':OUTPATH:.2'; #, | |
'sql' => "select age, avg(gpa) from studenttab10k where gpa < 3.0 group by age; | |
select age, max(gpa) - min(gpa) from studenttab10k where gpa >= 3.0 group by age;", | |
}, | |
# One split in map phase and two Map-Reduce splitees without combiner. | |
{ | |
'num' => 17, | |
'pig' => q# a = load ':INPATH:/singlefile/studenttab10k' as (name: chararray, age: int, gpa: float); | |
b = filter a by gpa < 3.0; | |
c = filter a by gpa >= 3.0; | |
d = group b by age; | |
e = foreach d generate group, MAX(b.gpa) + MIN(b.gpa); | |
store e into ':OUTPATH:.1'; | |
f = group c by age; | |
g = foreach f generate group, MAX(c.gpa) - MIN(c.gpa); | |
store g into ':OUTPATH:.2'; #, | |
'sql' => "select age, max(gpa) + min(gpa) from studenttab10k where gpa < 3.0 group by age; | |
select age, max(gpa) - min(gpa) from studenttab10k where gpa >= 3.0 group by age;", | |
}, | |
# Splittees with different map key types and nested splits | |
{ | |
'num' => 18, | |
'pig' => q# a = load ':INPATH:/singlefile/votertab10k' as (name: chararray, age:int, registration, contributions:double); | |
b = foreach a generate name, age, contributions; | |
split b into c1 if age > 10, c2 if age <= 60; | |
split c1 into d1 if name < 'y', d2 if name >= 'c'; | |
e = group c2 by name parallel 2; | |
e1 = foreach e generate group, SUM(c2.contributions); | |
store e1 into ':OUTPATH:.1'; | |
f = group d1 by name parallel 3; | |
f1 = foreach f generate group, MAX(d1.contributions); | |
store f1 into ':OUTPATH:.2'; | |
g = group d2 by age parallel 4; | |
g1 = foreach g generate group, COUNT(d2); | |
store g1 into ':OUTPATH:.3'; #, | |
'sql' => "select name, sum(contributions) from votertab10k where age <= 60 group by name; | |
select name, max(contributions) from votertab10k where (age > 10 and name < 'y') group by name; | |
select age, count(*) from votertab10k where (age > 10 and name >= 'c') group by age;", | |
}, | |
# Splittees with different map key types | |
{ | |
'num' => 19, | |
'pig' => q# a = load ':INPATH:/singlefile/votertab10k' as (name: chararray, age:int, registration, contributions:double); | |
b = foreach a generate name, age, contributions; | |
split b into c1 if age > 50, c2 if age <= 50; | |
e = group c2 by name; | |
e1 = foreach e generate group, SUM(c2.contributions); | |
store e1 into ':OUTPATH:.1'; | |
f = group c1 by age; | |
f1 = foreach f generate group, MAX(c1.contributions); | |
store f1 into ':OUTPATH:.2'; #, | |
'sql' => "select name, sum(contributions) from votertab10k where age <= 50 group by name; | |
select age, max(contributions) from votertab10k where age > 50 group by age;", | |
}, | |
# Streaming in demux | |
{ | |
'num' => 20, | |
'execonly' => 'mapred', | |
'pig' => q# | |
define CMD `perl GroupBy.pl '\t' 0` ship(':SCRIPTHOMEPATH:/GroupBy.pl'); | |
A = load ':INPATH:/singlefile/studenttab10k'; | |
split A into A1 if $0 < 'm', A2 if $0 >= 'm'; | |
B = group A1 by $0; | |
C = foreach B generate flatten(A1); | |
D = stream C through CMD; | |
store D into ':OUTPATH:.1'; | |
E = group A2 by $0; | |
F = foreach E generate group, COUNT(A2); | |
store F into ':OUTPATH:.2';#, | |
'sql' => "select name, count(*) from studenttab10k where name < 'm' group by name; | |
select name, count(*) from studenttab10k where name >= 'm' group by name;", | |
}, | |
# Streaming in nested demux | |
{ | |
'num' => 21, | |
'execonly' => 'mapred', | |
'pig' => q# | |
define CMD `perl GroupBy.pl '\t' 0` ship(':SCRIPTHOMEPATH:/GroupBy.pl'); | |
A = load ':INPATH:/singlefile/studenttab10k'; | |
split A into A1 if $0 < 'm', A2 if $0 >= 'm'; | |
split A1 into A3 if $1 < 30, A4 if $1 >= 30; | |
B = group A3 by $0; | |
C = foreach B generate flatten(A3); | |
D = stream C through CMD; | |
store D into ':OUTPATH:.1'; | |
E = group A2 by $0; | |
F = foreach E generate group, COUNT(A2); | |
store F into ':OUTPATH:.2'; | |
G = group A4 by $0; | |
H = foreach G generate group, COUNT(A4); | |
store H into ':OUTPATH:.3';#, | |
'sql' => "select name, count(*) from studenttab10k where name < 'm' and age < 30 group by name; | |
select name, count(*) from studenttab10k where name >= 'm' group by name; | |
select name, count(*) from studenttab10k where name < 'm' and age >= 30 group by name;", | |
}, | |
# PigMix Test Case L12 version 2 | |
{ | |
'num' => 22, | |
'pig' => q# a = load ':INPATH:/singlefile/votertab10k' as (name, age, registration, contributions); | |
b = foreach a generate name, age, contributions; | |
split b into c1 if age > 50, c2 if age <= 50; | |
split c1 into d1 if name < 'm', d2 if name >= 'm'; | |
e = group c2 by (name, age); | |
e1 = foreach e generate flatten(group), SUM(c2.contributions); | |
store e1 into ':OUTPATH:.1'; | |
f = group d1 by (name, age); | |
f1 = foreach f generate flatten(group), MAX(d1.contributions); | |
store f1 into ':OUTPATH:.2'; | |
g = group d2 by (name, age); | |
g1 = foreach g generate flatten(group), COUNT(d2); | |
store g1 into ':OUTPATH:.3'; #, | |
'sql' => "select name, age, sum(contributions) from votertab10k where age <= 50 group by name, age; | |
select name, age, max(contributions) from votertab10k where (age > 50 and name < 'm') group by name, age; | |
select name, age, count(*) from votertab10k where (age > 50 and name >= 'm') group by name, age;", | |
}, | |
# PigMix Test Case L12 version 3 (modified to have different map key types in inner split) | |
{ | |
'num' => 23, | |
'pig' => q# a = load ':INPATH:/singlefile/votertab10k' as (name, age, registration, contributions); | |
b = foreach a generate name, age, contributions; | |
split b into c1 if age > 50, c2 if age <= 50; | |
split c1 into d1 if name < 'm', d2 if name >= 'm'; | |
f = group d1 by name; | |
f1 = foreach f generate flatten(group), MAX(d1.contributions); | |
store f1 into ':OUTPATH:.1'; | |
g = group d2 by (name, age); | |
g1 = foreach g generate flatten(group), COUNT(d2); | |
store g1 into ':OUTPATH:.2'; | |
e = group c2 by (name, age); | |
e1 = foreach e generate flatten(group), SUM(c2.contributions); | |
store e1 into ':OUTPATH:.3'; #, | |
'sql' => "select name, max(contributions) from votertab10k where (age > 50 and name < 'm') group by name; | |
select name, age, count(*) from votertab10k where (age > 50 and name >= 'm') group by name, age; | |
select name, age, sum(contributions) from votertab10k where age <= 50 group by name, age;", | |
}, | |
# Pig-976: Multi-query optimization throws ClassCastException | |
{ | |
'num' => 24, | |
'pig' => q# a = load ':INPATH:/singlefile/studenttab10k' as (name:chararray, age:int, gpa:float); | |
b = group a by name; | |
c = group a by age; | |
d = foreach b generate MAX(a.age); | |
e = foreach c generate group, SUM(a.gpa); | |
store d into ':OUTPATH:.1'; | |
store e into ':OUTPATH:.2'; #, | |
'sql' => "select max(age) from studenttab10k group by name; | |
select age, sum(gpa) from studenttab10k group by age;", | |
}, | |
# Pig-976: Multi-query optimization throws ClassCastException | |
{ | |
'num' => 25, | |
'pig' => q# a = load ':INPATH:/singlefile/studenttab10k' as (name:chararray, age:int, gpa:float); | |
b = group a all; | |
c = group a by age; | |
d = foreach b generate COUNT(a), MAX(a.age); | |
e = foreach c generate group, SUM(a.gpa); | |
store d into ':OUTPATH:.1'; | |
store e into ':OUTPATH:.2'; #, | |
'sql' => "select count(*), max(age) from studenttab10k; | |
select age, sum(gpa) from studenttab10k group by age;", | |
}, | |
# Pig-983: multi-query optimization on multiple group bys following a join or cogroup | |
{ | |
'num' => 26, | |
'pig' => q# a = load ':INPATH:/singlefile/studenttab10k' as (name:chararray, age:int, gpa:float); | |
b = load ':INPATH:/singlefile/votertab10k' as (name:chararray, age:int, registration, contributions:double); | |
c = join a by name, b by name; | |
d = group c by a::age; | |
e = group c by b::age; | |
d1 = foreach d generate group, COUNT(c), MAX(c.a::gpa); | |
e1 = foreach e generate group, SUM(c.b::contributions); | |
store d1 into ':OUTPATH:.1'; | |
store e1 into ':OUTPATH:.2'; #, | |
'sql' => "select a.age, count(*), max(a.gpa) from studenttab10k as a inner join votertab10k as b on (a.name = b.name) group by a.age; | |
select b.age, sum(b.contributions) from studenttab10k as a inner join votertab10k as b on (a.name = b.name) group by b.age;", | |
}, | |
# Pig-976: Multi-query optimization throws ClassCastException | |
{ | |
'num' => 27, | |
'pig' => q# a = load ':INPATH:/singlefile/studenttab10k' as (name:chararray, age:int, gpa:float); | |
b = group a by name; | |
c = group a by age; | |
d = foreach b generate MAX(a.age), group; | |
e = foreach c generate group, SUM(a.gpa); | |
store d into ':OUTPATH:.1'; | |
store e into ':OUTPATH:.2'; #, | |
'sql' => "select max(age), name from studenttab10k group by name; | |
select age, sum(gpa) from studenttab10k group by age;", | |
}, | |
] # end of tests | |
}, | |
] # end of groups | |
} | |
; | |