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Postgres FD Implementation
Commit 9bac6602 authored by Tom Lane's avatar Tom Lane
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Fix core dump in jsonb #> operator, and add regression test cases. 

jsonb's #> operator segfaulted (dereferencing a null pointer) if the RHS
was a zero-length array, as reported in bug #11207 from Justin Van Winkle.
json's #> operator returns NULL in such cases, so for the moment let's
make jsonb act likewise.

Also add a bunch of regression test queries memorializing the -> and #>
operators' behavior for this and other corner cases.

There is a good argument for changing some of these behaviors, as they
are not very consistent with each other, and throwing an error isn't
necessarily a desirable behavior for operators that are likely to be
used in indexes.  However, everybody can agree that a core dump is the
Wrong Thing, and we need test cases even if we decide to change their
expected output later.
parent 7567d949
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Showing with 711 additions and 119 deletions
src/backend/utils/adt/jsonfuncs.c
View file @ 9bac6602
...@@ -726,6 +726,13 @@ get_path_all(FunctionCallInfo fcinfo, const char *funcname, bool as_text) ...@@ -726,6 +726,13 @@ get_path_all(FunctionCallInfo fcinfo, const char *funcname, bool as_text)
deconstruct_array(path, TEXTOID, -1, false, 'i', deconstruct_array(path, TEXTOID, -1, false, 'i',
&pathtext, &pathnulls, &npath); &pathtext, &pathnulls, &npath);
/*
* If the array is empty, return NULL; this is dubious but it's what 9.3
* did.
*/
if (npath <= 0)
PG_RETURN_NULL();
tpath = palloc(npath * sizeof(char *)); tpath = palloc(npath * sizeof(char *));
ipath = palloc(npath * sizeof(int)); ipath = palloc(npath * sizeof(int));
...@@ -1100,11 +1107,11 @@ get_jsonb_path_all(FunctionCallInfo fcinfo, const char *funcname, bool as_text) ...@@ -1100,11 +1107,11 @@ get_jsonb_path_all(FunctionCallInfo fcinfo, const char *funcname, bool as_text)
{ {
Jsonb *jb = PG_GETARG_JSONB(0); Jsonb *jb = PG_GETARG_JSONB(0);
ArrayType *path = PG_GETARG_ARRAYTYPE_P(1); ArrayType *path = PG_GETARG_ARRAYTYPE_P(1);
Jsonb *res;
Datum *pathtext; Datum *pathtext;
bool *pathnulls; bool *pathnulls;
int npath; int npath;
int i; int i;
Jsonb *res;
bool have_object = false, bool have_object = false,
have_array = false; have_array = false;
JsonbValue *jbvp = NULL; JsonbValue *jbvp = NULL;
...@@ -1120,6 +1127,13 @@ get_jsonb_path_all(FunctionCallInfo fcinfo, const char *funcname, bool as_text) ...@@ -1120,6 +1127,13 @@ get_jsonb_path_all(FunctionCallInfo fcinfo, const char *funcname, bool as_text)
deconstruct_array(path, TEXTOID, -1, false, 'i', deconstruct_array(path, TEXTOID, -1, false, 'i',
&pathtext, &pathnulls, &npath); &pathtext, &pathnulls, &npath);
/*
* If the array is empty, return NULL; this is dubious but it's what 9.3
* did.
*/
if (npath <= 0)
PG_RETURN_NULL();
if (JB_ROOT_IS_OBJECT(jb)) if (JB_ROOT_IS_OBJECT(jb))
have_object = true; have_object = true;
else if (JB_ROOT_IS_ARRAY(jb) && !JB_ROOT_IS_SCALAR(jb)) else if (JB_ROOT_IS_ARRAY(jb) && !JB_ROOT_IS_SCALAR(jb))
......
src/test/regress/expected/json.out
View file @ 9bac6602
...@@ -653,6 +653,45 @@ where json_type = 'array'; ...@@ -653,6 +653,45 @@ where json_type = 'array';
t t
(1 row) (1 row)
-- corner cases
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json -> null::text;
?column?
----------
(1 row)
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json -> null::int;
?column?
----------
(1 row)
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json -> 1;
ERROR: cannot extract array element from a non-array
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json -> 'z';
?column?
----------
(1 row)
select '[{"b": "c"}, {"b": "cc"}]'::json -> 1;
?column?
-------------
{"b": "cc"}
(1 row)
select '[{"b": "c"}, {"b": "cc"}]'::json -> 3;
?column?
----------
(1 row)
select '[{"b": "c"}, {"b": "cc"}]'::json -> 'z';
ERROR: cannot extract field from a non-object
select '"foo"'::json -> 1;
ERROR: cannot extract element from a scalar
select '"foo"'::json -> 'z';
ERROR: cannot extract element from a scalar
-- array length -- array length
SELECT json_array_length('[1,2,3,{"f1":1,"f2":[5,6]},4]'); SELECT json_array_length('[1,2,3,{"f1":1,"f2":[5,6]},4]');
json_array_length json_array_length
...@@ -831,53 +870,161 @@ select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>>array['f2','1']; ...@@ -831,53 +870,161 @@ select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>>array['f2','1'];
1 1
(1 row) (1 row)
-- same using array literals -- corner cases for same
select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>'{f4,f6}'; select '{"a": {"b":{"c": "foo"}}}'::json #> array[]::text[];
?column? ?column?
----------- ----------
"stringy"
(1 row) (1 row)
select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>'{f2}'; select '{"a": {"b":{"c": "foo"}}}'::json #> array['a'];
?column?
--------------------
{"b":{"c": "foo"}}
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::json #> array['a','b'];
?column?
--------------
{"c": "foo"}
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::json #> array['a','b','c'];
?column? ?column?
---------- ----------
{"f3":1} "foo"
(1 row) (1 row)
select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>'{f2,0}'; select '{"a": {"b":{"c": "foo"}}}'::json #> array['a','b','c','d'];
?column? ?column?
---------- ----------
"f3"
(1 row) (1 row)
select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>'{f2,1}'; select '{"a": {"b":{"c": "foo"}}}'::json #> array['a','z','c'];
?column? ?column?
---------- ----------
1
(1 row) (1 row)
select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>>'{f4,f6}'; select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json #> array['a','1','b'];
?column? ?column?
---------- ----------
stringy "cc"
(1 row) (1 row)
select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>>'{f2}'; select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json #> array['a','z','b'];
?column? ?column?
---------- ----------
{"f3":1}
(1 row) (1 row)
select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>>'{f2,0}'; select '[{"b": "c"}, {"b": "cc"}]'::json #> array['1','b'];
?column? ?column?
---------- ----------
f3 "cc"
(1 row) (1 row)
select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>>'{f2,1}'; select '[{"b": "c"}, {"b": "cc"}]'::json #> array['z','b'];
?column? ?column?
---------- ----------
1
(1 row)
select '"foo"'::json #> array['z'];
?column?
----------
(1 row)
select '42'::json #> array['f2'];
?column?
----------
(1 row)
select '42'::json #> array['0'];
?column?
----------
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::json #>> array[]::text[];
?column?
----------
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a'];
?column?
--------------------
{"b":{"c": "foo"}}
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a','b'];
?column?
--------------
{"c": "foo"}
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a','b','c'];
?column?
----------
foo
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a','b','c','d'];
?column?
----------
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a','z','c'];
?column?
----------
(1 row)
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json #>> array['a','1','b'];
?column?
----------
cc
(1 row)
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json #>> array['a','z','b'];
?column?
----------
(1 row)
select '[{"b": "c"}, {"b": "cc"}]'::json #>> array['1','b'];
?column?
----------
cc
(1 row)
select '[{"b": "c"}, {"b": "cc"}]'::json #>> array['z','b'];
?column?
----------
(1 row)
select '"foo"'::json #>> array['z'];
?column?
----------
(1 row)
select '42'::json #>> array['f2'];
?column?
----------
(1 row)
select '42'::json #>> array['0'];
?column?
----------
(1 row) (1 row)
-- array_elements -- array_elements
......
src/test/regress/expected/json_1.out
View file @ 9bac6602
...@@ -653,6 +653,45 @@ where json_type = 'array'; ...@@ -653,6 +653,45 @@ where json_type = 'array';
t t
(1 row) (1 row)
-- corner cases
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json -> null::text;
?column?
----------
(1 row)
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json -> null::int;
?column?
----------
(1 row)
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json -> 1;
ERROR: cannot extract array element from a non-array
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json -> 'z';
?column?
----------
(1 row)
select '[{"b": "c"}, {"b": "cc"}]'::json -> 1;
?column?
-------------
{"b": "cc"}
(1 row)
select '[{"b": "c"}, {"b": "cc"}]'::json -> 3;
?column?
----------
(1 row)
select '[{"b": "c"}, {"b": "cc"}]'::json -> 'z';
ERROR: cannot extract field from a non-object
select '"foo"'::json -> 1;
ERROR: cannot extract element from a scalar
select '"foo"'::json -> 'z';
ERROR: cannot extract element from a scalar
-- array length -- array length
SELECT json_array_length('[1,2,3,{"f1":1,"f2":[5,6]},4]'); SELECT json_array_length('[1,2,3,{"f1":1,"f2":[5,6]},4]');
json_array_length json_array_length
...@@ -831,53 +870,161 @@ select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>>array['f2','1']; ...@@ -831,53 +870,161 @@ select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>>array['f2','1'];
1 1
(1 row) (1 row)
-- same using array literals -- corner cases for same
select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>'{f4,f6}'; select '{"a": {"b":{"c": "foo"}}}'::json #> array[]::text[];
?column? ?column?
----------- ----------
"stringy"
(1 row) (1 row)
select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>'{f2}'; select '{"a": {"b":{"c": "foo"}}}'::json #> array['a'];
?column?
--------------------
{"b":{"c": "foo"}}
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::json #> array['a','b'];
?column?
--------------
{"c": "foo"}
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::json #> array['a','b','c'];
?column? ?column?
---------- ----------
{"f3":1} "foo"
(1 row) (1 row)
select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>'{f2,0}'; select '{"a": {"b":{"c": "foo"}}}'::json #> array['a','b','c','d'];
?column? ?column?
---------- ----------
"f3"
(1 row) (1 row)
select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>'{f2,1}'; select '{"a": {"b":{"c": "foo"}}}'::json #> array['a','z','c'];
?column? ?column?
---------- ----------
1
(1 row) (1 row)
select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>>'{f4,f6}'; select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json #> array['a','1','b'];
?column? ?column?
---------- ----------
stringy "cc"
(1 row) (1 row)
select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>>'{f2}'; select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json #> array['a','z','b'];
?column? ?column?
---------- ----------
{"f3":1}
(1 row) (1 row)
select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>>'{f2,0}'; select '[{"b": "c"}, {"b": "cc"}]'::json #> array['1','b'];
?column? ?column?
---------- ----------
f3 "cc"
(1 row) (1 row)
select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>>'{f2,1}'; select '[{"b": "c"}, {"b": "cc"}]'::json #> array['z','b'];
?column? ?column?
---------- ----------
1
(1 row)
select '"foo"'::json #> array['z'];
?column?
----------
(1 row)
select '42'::json #> array['f2'];
?column?
----------
(1 row)
select '42'::json #> array['0'];
?column?
----------
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::json #>> array[]::text[];
?column?
----------
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a'];
?column?
--------------------
{"b":{"c": "foo"}}
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a','b'];
?column?
--------------
{"c": "foo"}
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a','b','c'];
?column?
----------
foo
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a','b','c','d'];
?column?
----------
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a','z','c'];
?column?
----------
(1 row)
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json #>> array['a','1','b'];
?column?
----------
cc
(1 row)
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json #>> array['a','z','b'];
?column?
----------
(1 row)
select '[{"b": "c"}, {"b": "cc"}]'::json #>> array['1','b'];
?column?
----------
cc
(1 row)
select '[{"b": "c"}, {"b": "cc"}]'::json #>> array['z','b'];
?column?
----------
(1 row)
select '"foo"'::json #>> array['z'];
?column?
----------
(1 row)
select '42'::json #>> array['f2'];
?column?
----------
(1 row)
select '42'::json #>> array['0'];
?column?
----------
(1 row) (1 row)
-- array_elements -- array_elements
......
src/test/regress/expected/jsonb.out
View file @ 9bac6602
...@@ -432,6 +432,45 @@ SELECT (test_json->>3) IS NULL AS expect_true FROM test_jsonb WHERE json_type = ...@@ -432,6 +432,45 @@ SELECT (test_json->>3) IS NULL AS expect_true FROM test_jsonb WHERE json_type =
t t
(1 row) (1 row)
-- corner cases
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::jsonb -> null::text;
?column?
----------
(1 row)
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::jsonb -> null::int;
?column?
----------
(1 row)
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::jsonb -> 1;
ERROR: cannot call jsonb_array_element (jsonb -> int) on an object
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::jsonb -> 'z';
?column?
----------
(1 row)
select '[{"b": "c"}, {"b": "cc"}]'::jsonb -> 1;
?column?
-------------
{"b": "cc"}
(1 row)
select '[{"b": "c"}, {"b": "cc"}]'::jsonb -> 3;
?column?
----------
(1 row)
select '[{"b": "c"}, {"b": "cc"}]'::jsonb -> 'z';
ERROR: cannot call jsonb_object_field (jsonb -> text) on an array
select '"foo"'::jsonb -> 1;
ERROR: cannot call jsonb_array_element (jsonb -> int) on a scalar
select '"foo"'::jsonb -> 'z';
ERROR: cannot call jsonb_object_field (jsonb -> text) on a scalar
-- equality and inequality -- equality and inequality
SELECT '{"x":"y"}'::jsonb = '{"x":"y"}'::jsonb; SELECT '{"x":"y"}'::jsonb = '{"x":"y"}'::jsonb;
?column? ?column?
...@@ -1178,63 +1217,138 @@ SELECT '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>>array['f2','1']; ...@@ -1178,63 +1217,138 @@ SELECT '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>>array['f2','1'];
1 1
(1 row) (1 row)
-- same using array literals -- corner cases for same
SELECT '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>'{f4,f6}'; select '{"a": {"b":{"c": "foo"}}}'::jsonb #> array[]::text[];
?column? ?column?
----------- ----------
"stringy"
(1 row) (1 row)
SELECT '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>'{f2}'; select '{"a": {"b":{"c": "foo"}}}'::jsonb #> array['a'];
?column? ?column?
----------- ---------------------
{"f3": 1} {"b": {"c": "foo"}}
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::jsonb #> array['a','b'];
?column?
--------------
{"c": "foo"}
(1 row) (1 row)
SELECT '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>'{f2,0}'; select '{"a": {"b":{"c": "foo"}}}'::jsonb #> array['a','b','c'];
?column? ?column?
---------- ----------
"f3" "foo"
(1 row) (1 row)
SELECT '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>'{f2,1}'; select '{"a": {"b":{"c": "foo"}}}'::jsonb #> array['a','b','c','d'];
?column? ?column?
---------- ----------
1
(1 row) (1 row)
SELECT '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>>'{f4,f6}'; select '{"a": {"b":{"c": "foo"}}}'::jsonb #> array['a','z','c'];
?column? ?column?
---------- ----------
stringy
(1 row) (1 row)
SELECT '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>>'{f2}'; select '{"a": [{"b": "c"}, {"b": "cc"}]}'::jsonb #> array['a','1','b'];
?column? ?column?
----------- ----------
{"f3": 1} "cc"
(1 row) (1 row)
SELECT '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>>'{f2,0}'; select '{"a": [{"b": "c"}, {"b": "cc"}]}'::jsonb #> array['a','z','b'];
?column? ?column?
---------- ----------
f3
(1 row) (1 row)
SELECT '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>>'{f2,1}'; select '[{"b": "c"}, {"b": "cc"}]'::jsonb #> array['1','b'];
?column? ?column?
---------- ----------
1 "cc"
(1 row)
select '[{"b": "c"}, {"b": "cc"}]'::jsonb #> array['z','b'];
?column?
----------
(1 row) (1 row)
-- same on jsonb scalars (expecting errors) select '"foo"'::jsonb #> array['z'];
SELECT '42'::jsonb#>array['f2'];
ERROR: cannot extract path from a scalar ERROR: cannot extract path from a scalar
SELECT '42'::jsonb#>array['0']; select '42'::jsonb #> array['f2'];
ERROR: cannot extract path from a scalar
select '42'::jsonb #> array['0'];
ERROR: cannot extract path from a scalar
select '{"a": {"b":{"c": "foo"}}}'::jsonb #>> array[]::text[];
?column?
----------
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::jsonb #>> array['a'];
?column?
---------------------
{"b": {"c": "foo"}}
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::jsonb #>> array['a','b'];
?column?
--------------
{"c": "foo"}
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::jsonb #>> array['a','b','c'];
?column?
----------
foo
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::jsonb #>> array['a','b','c','d'];
?column?
----------
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::jsonb #>> array['a','z','c'];
?column?
----------
(1 row)
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::jsonb #>> array['a','1','b'];
?column?
----------
cc
(1 row)
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::jsonb #>> array['a','z','b'];
?column?
----------
(1 row)
select '[{"b": "c"}, {"b": "cc"}]'::jsonb #>> array['1','b'];
?column?
----------
cc
(1 row)
select '[{"b": "c"}, {"b": "cc"}]'::jsonb #>> array['z','b'];
?column?
----------
(1 row)
select '"foo"'::jsonb #>> array['z'];
ERROR: cannot extract path from a scalar ERROR: cannot extract path from a scalar
SELECT '42'::jsonb#>>array['f2']; select '42'::jsonb #>> array['f2'];
ERROR: cannot extract path from a scalar ERROR: cannot extract path from a scalar
SELECT '42'::jsonb#>>array['0']; select '42'::jsonb #>> array['0'];
ERROR: cannot extract path from a scalar ERROR: cannot extract path from a scalar
-- array_elements -- array_elements
SELECT jsonb_array_elements('[1,true,[1,[2,3]],null,{"f1":1,"f2":[7,8,9]},false]'); SELECT jsonb_array_elements('[1,true,[1,[2,3]],null,{"f1":1,"f2":[7,8,9]},false]');
......
src/test/regress/expected/jsonb_1.out
View file @ 9bac6602
...@@ -432,6 +432,45 @@ SELECT (test_json->>3) IS NULL AS expect_true FROM test_jsonb WHERE json_type = ...@@ -432,6 +432,45 @@ SELECT (test_json->>3) IS NULL AS expect_true FROM test_jsonb WHERE json_type =
t t
(1 row) (1 row)
-- corner cases
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::jsonb -> null::text;
?column?
----------
(1 row)
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::jsonb -> null::int;
?column?
----------
(1 row)
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::jsonb -> 1;
ERROR: cannot call jsonb_array_element (jsonb -> int) on an object
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::jsonb -> 'z';
?column?
----------
(1 row)
select '[{"b": "c"}, {"b": "cc"}]'::jsonb -> 1;
?column?
-------------
{"b": "cc"}
(1 row)
select '[{"b": "c"}, {"b": "cc"}]'::jsonb -> 3;
?column?
----------
(1 row)
select '[{"b": "c"}, {"b": "cc"}]'::jsonb -> 'z';
ERROR: cannot call jsonb_object_field (jsonb -> text) on an array
select '"foo"'::jsonb -> 1;
ERROR: cannot call jsonb_array_element (jsonb -> int) on a scalar
select '"foo"'::jsonb -> 'z';
ERROR: cannot call jsonb_object_field (jsonb -> text) on a scalar
-- equality and inequality -- equality and inequality
SELECT '{"x":"y"}'::jsonb = '{"x":"y"}'::jsonb; SELECT '{"x":"y"}'::jsonb = '{"x":"y"}'::jsonb;
?column? ?column?
...@@ -1178,63 +1217,138 @@ SELECT '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>>array['f2','1']; ...@@ -1178,63 +1217,138 @@ SELECT '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>>array['f2','1'];
1 1
(1 row) (1 row)
-- same using array literals -- corner cases for same
SELECT '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>'{f4,f6}'; select '{"a": {"b":{"c": "foo"}}}'::jsonb #> array[]::text[];
?column? ?column?
----------- ----------
"stringy"
(1 row) (1 row)
SELECT '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>'{f2}'; select '{"a": {"b":{"c": "foo"}}}'::jsonb #> array['a'];
?column? ?column?
----------- ---------------------
{"f3": 1} {"b": {"c": "foo"}}
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::jsonb #> array['a','b'];
?column?
--------------
{"c": "foo"}
(1 row) (1 row)
SELECT '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>'{f2,0}'; select '{"a": {"b":{"c": "foo"}}}'::jsonb #> array['a','b','c'];
?column? ?column?
---------- ----------
"f3" "foo"
(1 row) (1 row)
SELECT '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>'{f2,1}'; select '{"a": {"b":{"c": "foo"}}}'::jsonb #> array['a','b','c','d'];
?column? ?column?
---------- ----------
1
(1 row) (1 row)
SELECT '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>>'{f4,f6}'; select '{"a": {"b":{"c": "foo"}}}'::jsonb #> array['a','z','c'];
?column? ?column?
---------- ----------
stringy
(1 row) (1 row)
SELECT '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>>'{f2}'; select '{"a": [{"b": "c"}, {"b": "cc"}]}'::jsonb #> array['a','1','b'];
?column? ?column?
----------- ----------
{"f3": 1} "cc"
(1 row) (1 row)
SELECT '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>>'{f2,0}'; select '{"a": [{"b": "c"}, {"b": "cc"}]}'::jsonb #> array['a','z','b'];
?column? ?column?
---------- ----------
f3
(1 row) (1 row)
SELECT '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>>'{f2,1}'; select '[{"b": "c"}, {"b": "cc"}]'::jsonb #> array['1','b'];
?column? ?column?
---------- ----------
1 "cc"
(1 row)
select '[{"b": "c"}, {"b": "cc"}]'::jsonb #> array['z','b'];
?column?
----------
(1 row) (1 row)
-- same on jsonb scalars (expecting errors) select '"foo"'::jsonb #> array['z'];
SELECT '42'::jsonb#>array['f2'];
ERROR: cannot extract path from a scalar ERROR: cannot extract path from a scalar
SELECT '42'::jsonb#>array['0']; select '42'::jsonb #> array['f2'];
ERROR: cannot extract path from a scalar
select '42'::jsonb #> array['0'];
ERROR: cannot extract path from a scalar
select '{"a": {"b":{"c": "foo"}}}'::jsonb #>> array[]::text[];
?column?
----------
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::jsonb #>> array['a'];
?column?
---------------------
{"b": {"c": "foo"}}
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::jsonb #>> array['a','b'];
?column?
--------------
{"c": "foo"}
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::jsonb #>> array['a','b','c'];
?column?
----------
foo
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::jsonb #>> array['a','b','c','d'];
?column?
----------
(1 row)
select '{"a": {"b":{"c": "foo"}}}'::jsonb #>> array['a','z','c'];
?column?
----------
(1 row)
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::jsonb #>> array['a','1','b'];
?column?
----------
cc
(1 row)
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::jsonb #>> array['a','z','b'];
?column?
----------
(1 row)
select '[{"b": "c"}, {"b": "cc"}]'::jsonb #>> array['1','b'];
?column?
----------
cc
(1 row)
select '[{"b": "c"}, {"b": "cc"}]'::jsonb #>> array['z','b'];
?column?
----------
(1 row)
select '"foo"'::jsonb #>> array['z'];
ERROR: cannot extract path from a scalar ERROR: cannot extract path from a scalar
SELECT '42'::jsonb#>>array['f2']; select '42'::jsonb #>> array['f2'];
ERROR: cannot extract path from a scalar ERROR: cannot extract path from a scalar
SELECT '42'::jsonb#>>array['0']; select '42'::jsonb #>> array['0'];
ERROR: cannot extract path from a scalar ERROR: cannot extract path from a scalar
-- array_elements -- array_elements
SELECT jsonb_array_elements('[1,true,[1,[2,3]],null,{"f1":1,"f2":[7,8,9]},false]'); SELECT jsonb_array_elements('[1,true,[1,[2,3]],null,{"f1":1,"f2":[7,8,9]},false]');
......
src/test/regress/sql/json.sql
View file @ 9bac6602
...@@ -238,6 +238,17 @@ select (test_json->>3) is null as expect_true ...@@ -238,6 +238,17 @@ select (test_json->>3) is null as expect_true
from test_json from test_json
where json_type = 'array'; where json_type = 'array';
-- corner cases
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json -> null::text;
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json -> null::int;
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json -> 1;
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json -> 'z';
select '[{"b": "c"}, {"b": "cc"}]'::json -> 1;
select '[{"b": "c"}, {"b": "cc"}]'::json -> 3;
select '[{"b": "c"}, {"b": "cc"}]'::json -> 'z';
select '"foo"'::json -> 1;
select '"foo"'::json -> 'z';
-- array length -- array length
...@@ -281,20 +292,40 @@ select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>array['f4','f6']; ...@@ -281,20 +292,40 @@ select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>array['f4','f6'];
select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>array['f2']; select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>array['f2'];
select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>array['f2','0']; select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>array['f2','0'];
select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>array['f2','1']; select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>array['f2','1'];
select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>>array['f4','f6']; select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>>array['f4','f6'];
select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>>array['f2']; select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>>array['f2'];
select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>>array['f2','0']; select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>>array['f2','0'];
select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>>array['f2','1']; select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>>array['f2','1'];
-- same using array literals -- corner cases for same
select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>'{f4,f6}'; select '{"a": {"b":{"c": "foo"}}}'::json #> array[]::text[];
select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>'{f2}'; select '{"a": {"b":{"c": "foo"}}}'::json #> array['a'];
select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>'{f2,0}'; select '{"a": {"b":{"c": "foo"}}}'::json #> array['a','b'];
select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>'{f2,1}'; select '{"a": {"b":{"c": "foo"}}}'::json #> array['a','b','c'];
select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>>'{f4,f6}'; select '{"a": {"b":{"c": "foo"}}}'::json #> array['a','b','c','d'];
select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>>'{f2}'; select '{"a": {"b":{"c": "foo"}}}'::json #> array['a','z','c'];
select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>>'{f2,0}'; select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json #> array['a','1','b'];
select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>>'{f2,1}'; select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json #> array['a','z','b'];
select '[{"b": "c"}, {"b": "cc"}]'::json #> array['1','b'];
select '[{"b": "c"}, {"b": "cc"}]'::json #> array['z','b'];
select '"foo"'::json #> array['z'];
select '42'::json #> array['f2'];
select '42'::json #> array['0'];
select '{"a": {"b":{"c": "foo"}}}'::json #>> array[]::text[];
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a'];
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a','b'];
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a','b','c'];
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a','b','c','d'];
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a','z','c'];
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json #>> array['a','1','b'];
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json #>> array['a','z','b'];
select '[{"b": "c"}, {"b": "cc"}]'::json #>> array['1','b'];
select '[{"b": "c"}, {"b": "cc"}]'::json #>> array['z','b'];
select '"foo"'::json #>> array['z'];
select '42'::json #>> array['f2'];
select '42'::json #>> array['0'];
-- array_elements -- array_elements
......
src/test/regress/sql/jsonb.sql
View file @ 9bac6602
...@@ -108,6 +108,17 @@ SELECT (test_json->>'field3') IS NULL AS expect_true FROM test_jsonb WHERE json_ ...@@ -108,6 +108,17 @@ SELECT (test_json->>'field3') IS NULL AS expect_true FROM test_jsonb WHERE json_
SELECT (test_json->3) IS NULL AS expect_false FROM test_jsonb WHERE json_type = 'array'; SELECT (test_json->3) IS NULL AS expect_false FROM test_jsonb WHERE json_type = 'array';
SELECT (test_json->>3) IS NULL AS expect_true FROM test_jsonb WHERE json_type = 'array'; SELECT (test_json->>3) IS NULL AS expect_true FROM test_jsonb WHERE json_type = 'array';
-- corner cases
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::jsonb -> null::text;
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::jsonb -> null::int;
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::jsonb -> 1;
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::jsonb -> 'z';
select '[{"b": "c"}, {"b": "cc"}]'::jsonb -> 1;
select '[{"b": "c"}, {"b": "cc"}]'::jsonb -> 3;
select '[{"b": "c"}, {"b": "cc"}]'::jsonb -> 'z';
select '"foo"'::jsonb -> 1;
select '"foo"'::jsonb -> 'z';
-- equality and inequality -- equality and inequality
SELECT '{"x":"y"}'::jsonb = '{"x":"y"}'::jsonb; SELECT '{"x":"y"}'::jsonb = '{"x":"y"}'::jsonb;
SELECT '{"x":"y"}'::jsonb = '{"x":"z"}'::jsonb; SELECT '{"x":"y"}'::jsonb = '{"x":"z"}'::jsonb;
...@@ -252,26 +263,40 @@ SELECT '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>array['f4','f6']; ...@@ -252,26 +263,40 @@ SELECT '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>array['f4','f6'];
SELECT '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>array['f2']; SELECT '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>array['f2'];
SELECT '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>array['f2','0']; SELECT '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>array['f2','0'];
SELECT '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>array['f2','1']; SELECT '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>array['f2','1'];
SELECT '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>>array['f4','f6']; SELECT '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>>array['f4','f6'];
SELECT '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>>array['f2']; SELECT '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>>array['f2'];
SELECT '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>>array['f2','0']; SELECT '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>>array['f2','0'];
SELECT '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>>array['f2','1']; SELECT '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>>array['f2','1'];
-- same using array literals -- corner cases for same
SELECT '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>'{f4,f6}'; select '{"a": {"b":{"c": "foo"}}}'::jsonb #> array[]::text[];
SELECT '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>'{f2}'; select '{"a": {"b":{"c": "foo"}}}'::jsonb #> array['a'];
SELECT '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>'{f2,0}'; select '{"a": {"b":{"c": "foo"}}}'::jsonb #> array['a','b'];
SELECT '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>'{f2,1}'; select '{"a": {"b":{"c": "foo"}}}'::jsonb #> array['a','b','c'];
SELECT '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>>'{f4,f6}'; select '{"a": {"b":{"c": "foo"}}}'::jsonb #> array['a','b','c','d'];
SELECT '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>>'{f2}'; select '{"a": {"b":{"c": "foo"}}}'::jsonb #> array['a','z','c'];
SELECT '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>>'{f2,0}'; select '{"a": [{"b": "c"}, {"b": "cc"}]}'::jsonb #> array['a','1','b'];
SELECT '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::jsonb#>>'{f2,1}'; select '{"a": [{"b": "c"}, {"b": "cc"}]}'::jsonb #> array['a','z','b'];
select '[{"b": "c"}, {"b": "cc"}]'::jsonb #> array['1','b'];
-- same on jsonb scalars (expecting errors) select '[{"b": "c"}, {"b": "cc"}]'::jsonb #> array['z','b'];
SELECT '42'::jsonb#>array['f2']; select '"foo"'::jsonb #> array['z'];
SELECT '42'::jsonb#>array['0']; select '42'::jsonb #> array['f2'];
SELECT '42'::jsonb#>>array['f2']; select '42'::jsonb #> array['0'];
SELECT '42'::jsonb#>>array['0'];
select '{"a": {"b":{"c": "foo"}}}'::jsonb #>> array[]::text[];
select '{"a": {"b":{"c": "foo"}}}'::jsonb #>> array['a'];
select '{"a": {"b":{"c": "foo"}}}'::jsonb #>> array['a','b'];
select '{"a": {"b":{"c": "foo"}}}'::jsonb #>> array['a','b','c'];
select '{"a": {"b":{"c": "foo"}}}'::jsonb #>> array['a','b','c','d'];
select '{"a": {"b":{"c": "foo"}}}'::jsonb #>> array['a','z','c'];
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::jsonb #>> array['a','1','b'];
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::jsonb #>> array['a','z','b'];
select '[{"b": "c"}, {"b": "cc"}]'::jsonb #>> array['1','b'];
select '[{"b": "c"}, {"b": "cc"}]'::jsonb #>> array['z','b'];
select '"foo"'::jsonb #>> array['z'];
select '42'::jsonb #>> array['f2'];
select '42'::jsonb #>> array['0'];
-- array_elements -- array_elements
SELECT jsonb_array_elements('[1,true,[1,[2,3]],null,{"f1":1,"f2":[7,8,9]},false]'); SELECT jsonb_array_elements('[1,true,[1,[2,3]],null,{"f1":1,"f2":[7,8,9]},false]');
......
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