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Add generate_series(numeric, numeric).

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Платон Малюгин
Reviewed by Michael Paquier, Ali Akbar and Marti Raudsepp
This commit is contained in:
Fujii Masao
2014-11-11 21:44:46 +09:00
parent a1b395b6a2
commit 1871c89202
7 changed files with 212 additions and 5 deletions
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52
src/test/regress/expected/numeric.out
View File

@ -1409,3 +1409,55 @@ select 10.0 ^ 2147483647 as overflows;
ERROR: value overflows numeric format
select 117743296169.0 ^ 1000000000 as overflows;
ERROR: value overflows numeric format
--
-- Tests for generate_series
--
select * from generate_series(0.0::numeric, 4.0::numeric);
generate_series
-----------------
0.0
1.0
2.0
3.0
4.0
(5 rows)
select * from generate_series(0.1::numeric, 4.0::numeric, 1.3::numeric);
generate_series
-----------------
0.1
1.4
2.7
4.0
(4 rows)
select * from generate_series(4.0::numeric, -1.5::numeric, -2.2::numeric);
generate_series
-----------------
4.0
1.8
-0.4
(3 rows)
-- Trigger errors
select * from generate_series(-100::numeric, 100::numeric, 0::numeric);
ERROR: step size cannot equal zero
select * from generate_series(-100::numeric, 100::numeric, 'nan'::numeric);
ERROR: step size cannot be NaN
select * from generate_series('nan'::numeric, 100::numeric, 10::numeric);
ERROR: start value cannot be NaN
select * from generate_series(0::numeric, 'nan'::numeric, 10::numeric);
ERROR: stop value cannot be NaN
-- Checks maximum, output is truncated
select (i / (10::numeric ^ 131071))::numeric(1,0)
from generate_series(6 * (10::numeric ^ 131071),
9 * (10::numeric ^ 131071),
10::numeric ^ 131071) as a(i);
numeric
---------
6
7
8
9
(4 rows)

17
src/test/regress/sql/numeric.sql
View File

@ -837,3 +837,20 @@ select 10.0 ^ -2147483648 as rounds_to_zero;
select 10.0 ^ -2147483647 as rounds_to_zero;
select 10.0 ^ 2147483647 as overflows;
select 117743296169.0 ^ 1000000000 as overflows;
--
-- Tests for generate_series
--
select * from generate_series(0.0::numeric, 4.0::numeric);
select * from generate_series(0.1::numeric, 4.0::numeric, 1.3::numeric);
select * from generate_series(4.0::numeric, -1.5::numeric, -2.2::numeric);
-- Trigger errors
select * from generate_series(-100::numeric, 100::numeric, 0::numeric);
select * from generate_series(-100::numeric, 100::numeric, 'nan'::numeric);
select * from generate_series('nan'::numeric, 100::numeric, 10::numeric);
select * from generate_series(0::numeric, 'nan'::numeric, 10::numeric);
-- Checks maximum, output is truncated
select (i / (10::numeric ^ 131071))::numeric(1,0)
from generate_series(6 * (10::numeric ^ 131071),
9 * (10::numeric ^ 131071),
10::numeric ^ 131071) as a(i);