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Added subscript function for vectors

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This commit is contained in:
Andrew Kane
2024-03-17 19:25:39 -07:00
parent b64a1482d9
commit 71ee682ed4
6 changed files with 322 additions and 0 deletions
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106
test/expected/functions.out
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@@ -24,6 +24,112 @@ SELECT '[1e37]'::vector * '[1e37]';
ERROR: value out of range: overflow
SELECT '[1e-37]'::vector * '[1e-37]';
ERROR: value out of range: underflow
SELECT ('[1,2,3]'::vector)[0];
vector
--------
(1 row)
SELECT ('[1,2,3]'::vector)[1];
vector
--------
1
(1 row)
SELECT ('[1,2,3]'::vector)[2];
vector
--------
2
(1 row)
SELECT ('[1,2,3]'::vector)[3];
vector
--------
3
(1 row)
SELECT ('[1,2,3]'::vector)[4];
vector
--------
(1 row)
SELECT ('[1,2,3]'::vector)[1:1];
vector
--------
[1]
(1 row)
SELECT ('[1,2,3]'::vector)[1:2];
vector
--------
[1,2]
(1 row)
SELECT ('[1,2,3]'::vector)[2:4];
vector
--------
[2,3]
(1 row)
SELECT ('[1,2,3]'::vector)[-2:2];
vector
--------
[1,2]
(1 row)
SELECT ('[1,2,3]'::vector)[2:1];
ERROR: vector must have at least 1 dimension
SELECT ('[1,2,3]'::vector)[:];
vector
---------
[1,2,3]
(1 row)
SELECT ('[1,2,3]'::vector)[:2];
vector
--------
[1,2]
(1 row)
SELECT ('[1,2,3]'::vector)[2:];
vector
--------
[2,3]
(1 row)
SELECT ('[1,2,3]'::vector)[:4];
vector
---------
[1,2,3]
(1 row)
SELECT ('[1,2,3]'::vector)[-2:];
vector
---------
[1,2,3]
(1 row)
SELECT ('[1,2,3]'::vector)[NULL];
vector
--------
(1 row)
SELECT ('[1,2,3]'::vector)[NULL:2];
vector
--------
(1 row)
SELECT ('[1,2,3]'::vector)[2:NULL];
vector
--------
(1 row)
SELECT ('[1,2,3]'::vector)[1][1];
ERROR: vector allows only one subscript
SELECT '[1,2,3]'::vector = '[1,2,3]';
?column?
----------