001e114b8d
Set per file type attributes in .gitattributes to fine-tune whitespace checks. With the associated cleanups, the tree is now clean for git
233 lines
7.6 KiB
Plaintext
233 lines
7.6 KiB
Plaintext
CREATE OR REPLACE FUNCTION plperl_sum_array(INTEGER[]) RETURNS text AS $$
|
|
my $array_arg = shift;
|
|
my $result = 0;
|
|
my @arrays;
|
|
|
|
push @arrays, @$array_arg;
|
|
|
|
while (@arrays > 0) {
|
|
my $el = shift @arrays;
|
|
if (is_array_ref($el)) {
|
|
push @arrays, @$el;
|
|
} else {
|
|
$result += $el;
|
|
}
|
|
}
|
|
return $result.' '.$array_arg;
|
|
$$ LANGUAGE plperl;
|
|
select plperl_sum_array('{1,2,NULL}');
|
|
plperl_sum_array
|
|
------------------
|
|
3 {1,2,NULL}
|
|
(1 row)
|
|
|
|
select plperl_sum_array('{}');
|
|
plperl_sum_array
|
|
------------------
|
|
0 {}
|
|
(1 row)
|
|
|
|
select plperl_sum_array('{{1,2,3}, {4,5,6}}');
|
|
plperl_sum_array
|
|
----------------------
|
|
21 {{1,2,3},{4,5,6}}
|
|
(1 row)
|
|
|
|
select plperl_sum_array('{{{1,2,3}, {4,5,6}}, {{7,8,9}, {10,11,12}}}');
|
|
plperl_sum_array
|
|
---------------------------------------------
|
|
78 {{{1,2,3},{4,5,6}},{{7,8,9},{10,11,12}}}
|
|
(1 row)
|
|
|
|
-- check whether we can handle arrays of maximum dimension (6)
|
|
select plperl_sum_array(ARRAY[[[[[[1,2],[3,4]],[[5,6],[7,8]]],[[[9,10],[11,12]],
|
|
[[13,14],[15,16]]]],
|
|
[[[[17,18],[19,20]],[[21,22],[23,24]]],[[[25,26],[27,28]],[[29,30],[31,32]]]]],
|
|
[[[[[1,2],[3,4]],[[5,6],[7,8]]],[[[9,10],[11,12]],[[13,14],[15,16]]]],
|
|
[[[[17,18],[19,20]],[[21,22],[23,24]]],[[[25,26],[27,28]],[[29,30],[31,32]]]]]]);
|
|
plperl_sum_array
|
|
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
1056 {{{{{{1,2},{3,4}},{{5,6},{7,8}}},{{{9,10},{11,12}},{{13,14},{15,16}}}},{{{{17,18},{19,20}},{{21,22},{23,24}}},{{{25,26},{27,28}},{{29,30},{31,32}}}}},{{{{{1,2},{3,4}},{{5,6},{7,8}}},{{{9,10},{11,12}},{{13,14},{15,16}}}},{{{{17,18},{19,20}},{{21,22},{23,24}}},{{{25,26},{27,28}},{{29,30},{31,32}}}}}}
|
|
(1 row)
|
|
|
|
-- what would we do with the arrays exceeding maximum dimension (7)
|
|
select plperl_sum_array('{{{{{{{1,2},{3,4}},{{5,6},{7,8}}},{{{9,10},{11,12}},
|
|
{{13,14},{15,16}}}},
|
|
{{{{17,18},{19,20}},{{21,22},{23,24}}},{{{25,26},{27,28}},{{29,30},{31,32}}}}},
|
|
{{{{{1,2},{3,4}},{{5,6},{7,8}}},{{{9,10},{11,12}},{{13,14},{15,16}}}},
|
|
{{{{17,18},{19,20}},{{21,22},{23,24}}},{{{25,26},{27,28}},{{29,30},{31,32}}}}}},
|
|
{{{{{{1,2},{3,4}},{{5,6},{7,8}}},{{{9,10},{11,12}},{{13,14},{15,16}}}},
|
|
{{{{17,18},{19,20}},{{21,22},{23,24}}},{{{25,26},{27,28}},{{29,30},{31,32}}}}},
|
|
{{{{{1,2},{3,4}},{{5,6},{7,8}}},{{{9,10},{11,12}},{{13,14},{15,16}}}},
|
|
{{{{17,18},{19,20}},{{21,22},{23,24}}},{{{25,26},{27,28}},{{29,30},{31,32}}}}}}}'
|
|
);
|
|
ERROR: number of array dimensions (7) exceeds the maximum allowed (6)
|
|
LINE 1: select plperl_sum_array('{{{{{{{1,2},{3,4}},{{5,6},{7,8}}},{...
|
|
^
|
|
select plperl_sum_array('{{{1,2,3}, {4,5,6,7}}, {{7,8,9}, {10, 11, 12}}}');
|
|
ERROR: multidimensional arrays must have array expressions with matching dimensions
|
|
LINE 1: select plperl_sum_array('{{{1,2,3}, {4,5,6,7}}, {{7,8,9}, {1...
|
|
^
|
|
CREATE OR REPLACE FUNCTION plperl_concat(TEXT[]) RETURNS TEXT AS $$
|
|
my $array_arg = shift;
|
|
my $result = "";
|
|
my @arrays;
|
|
|
|
push @arrays, @$array_arg;
|
|
while (@arrays > 0) {
|
|
my $el = shift @arrays;
|
|
if (is_array_ref($el)) {
|
|
push @arrays, @$el;
|
|
} else {
|
|
$result .= $el;
|
|
}
|
|
}
|
|
return $result.' '.$array_arg;
|
|
$$ LANGUAGE plperl;
|
|
select plperl_concat('{"NULL","NULL","NULL''"}');
|
|
plperl_concat
|
|
-------------------------------------
|
|
NULLNULLNULL' {"NULL","NULL",NULL'}
|
|
(1 row)
|
|
|
|
select plperl_concat('{{NULL,NULL,NULL}}');
|
|
plperl_concat
|
|
---------------------
|
|
{{NULL,NULL,NULL}}
|
|
(1 row)
|
|
|
|
select plperl_concat('{"hello"," ","world!"}');
|
|
plperl_concat
|
|
---------------------------------
|
|
hello world! {hello," ",world!}
|
|
(1 row)
|
|
|
|
-- array of rows --
|
|
CREATE TYPE foo AS (bar INTEGER, baz TEXT);
|
|
CREATE OR REPLACE FUNCTION plperl_array_of_rows(foo[]) RETURNS TEXT AS $$
|
|
my $array_arg = shift;
|
|
my $result = "";
|
|
|
|
for my $row_ref (@$array_arg) {
|
|
die "not a hash reference" unless (ref $row_ref eq "HASH");
|
|
$result .= $row_ref->{bar}." items of ".$row_ref->{baz}.";";
|
|
}
|
|
return $result .' '. $array_arg;
|
|
$$ LANGUAGE plperl;
|
|
select plperl_array_of_rows(ARRAY[ ROW(2, 'coffee'), ROW(0, 'sugar')]::foo[]);
|
|
plperl_array_of_rows
|
|
----------------------------------------------------------------
|
|
2 items of coffee;0 items of sugar; {"(2,coffee)","(0,sugar)"}
|
|
(1 row)
|
|
|
|
-- composite type containing arrays
|
|
CREATE TYPE rowfoo AS (bar INTEGER, baz INTEGER[]);
|
|
CREATE OR REPLACE FUNCTION plperl_sum_row_elements(rowfoo) RETURNS TEXT AS $$
|
|
my $row_ref = shift;
|
|
my $result;
|
|
|
|
if (ref $row_ref ne 'HASH') {
|
|
$result = 0;
|
|
}
|
|
else {
|
|
$result = $row_ref->{bar};
|
|
die "not an array reference".ref ($row_ref->{baz})
|
|
unless (is_array_ref($row_ref->{baz}));
|
|
# process a single-dimensional array
|
|
foreach my $elem (@{$row_ref->{baz}}) {
|
|
$result += $elem unless ref $elem;
|
|
}
|
|
}
|
|
return $result;
|
|
$$ LANGUAGE plperl;
|
|
select plperl_sum_row_elements(ROW(1, ARRAY[2,3,4,5,6,7,8,9,10])::rowfoo);
|
|
plperl_sum_row_elements
|
|
-------------------------
|
|
55
|
|
(1 row)
|
|
|
|
-- composite type containing array of another composite type, which, in order,
|
|
-- contains an array of integers.
|
|
CREATE TYPE rowbar AS (foo rowfoo[]);
|
|
CREATE OR REPLACE FUNCTION plperl_sum_array_of_rows(rowbar) RETURNS TEXT AS $$
|
|
my $rowfoo_ref = shift;
|
|
my $result = 0;
|
|
|
|
if (ref $rowfoo_ref eq 'HASH') {
|
|
my $row_array_ref = $rowfoo_ref->{foo};
|
|
if (is_array_ref($row_array_ref)) {
|
|
foreach my $row_ref (@{$row_array_ref}) {
|
|
if (ref $row_ref eq 'HASH') {
|
|
$result += $row_ref->{bar};
|
|
die "not an array reference".ref ($row_ref->{baz})
|
|
unless (is_array_ref($row_ref->{baz}));
|
|
foreach my $elem (@{$row_ref->{baz}}) {
|
|
$result += $elem unless ref $elem;
|
|
}
|
|
}
|
|
else {
|
|
die "element baz is not a reference to a rowfoo";
|
|
}
|
|
}
|
|
} else {
|
|
die "not a reference to an array of rowfoo elements"
|
|
}
|
|
} else {
|
|
die "not a reference to type rowbar";
|
|
}
|
|
return $result;
|
|
$$ LANGUAGE plperl;
|
|
select plperl_sum_array_of_rows(ROW(ARRAY[ROW(1, ARRAY[2,3,4,5,6,7,8,9,10])::rowfoo,
|
|
ROW(11, ARRAY[12,13,14,15,16,17,18,19,20])::rowfoo])::rowbar);
|
|
plperl_sum_array_of_rows
|
|
--------------------------
|
|
210
|
|
(1 row)
|
|
|
|
-- check arrays as out parameters
|
|
CREATE OR REPLACE FUNCTION plperl_arrays_out(OUT INTEGER[]) AS $$
|
|
return [[1,2,3],[4,5,6]];
|
|
$$ LANGUAGE plperl;
|
|
select plperl_arrays_out();
|
|
plperl_arrays_out
|
|
-------------------
|
|
{{1,2,3},{4,5,6}}
|
|
(1 row)
|
|
|
|
-- check that we can return the array we passed in
|
|
CREATE OR REPLACE FUNCTION plperl_arrays_inout(INTEGER[]) returns INTEGER[] AS $$
|
|
return shift;
|
|
$$ LANGUAGE plperl;
|
|
select plperl_arrays_inout('{{1}, {2}, {3}}');
|
|
plperl_arrays_inout
|
|
---------------------
|
|
{{1},{2},{3}}
|
|
(1 row)
|
|
|
|
-- check that we can return an array literal
|
|
CREATE OR REPLACE FUNCTION plperl_arrays_inout_l(INTEGER[]) returns INTEGER[] AS $$
|
|
return shift.''; # stringify it
|
|
$$ LANGUAGE plperl;
|
|
select plperl_arrays_inout_l('{{1}, {2}, {3}}');
|
|
plperl_arrays_inout_l
|
|
-----------------------
|
|
{{1},{2},{3}}
|
|
(1 row)
|
|
|
|
-- make sure setof works
|
|
create or replace function perl_setof_array(integer[]) returns setof integer[] language plperl as $$
|
|
my $arr = shift;
|
|
for my $r (@$arr) {
|
|
return_next $r;
|
|
}
|
|
return undef;
|
|
$$;
|
|
select perl_setof_array('{{1}, {2}, {3}}');
|
|
perl_setof_array
|
|
------------------
|
|
{1}
|
|
{2}
|
|
{3}
|
|
(3 rows)
|
|
|