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Document impact of datestyle on jsonpath string() #8

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4 changes: 3 additions & 1 deletion doc/src/sgml/func.sgml
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Original file line number Diff line number Diff line change
Expand Up @@ -17971,7 +17971,9 @@ ERROR: jsonpath member accessor can only be applied to an object
<returnvalue><replaceable>string</replaceable></returnvalue>
</para>
<para>
String value converted from a JSON boolean, number, string, or datetime
String value converted from a JSON boolean, number, string, or
datetime. Note that the string output of datetimes is determined by
the <xref linkend="guc-datestyle"/> parameter.
</para>
<para>
<literal>jsonb_path_query_array('[1.23, "xyz", false]', '$[*].string()')</literal>
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89 changes: 89 additions & 0 deletions src/test/regress/expected/jsonb_jsonpath.out
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Expand Up @@ -2657,6 +2657,95 @@ select jsonb_path_query_array('[1.23, "yes", false]', '$[*].string().type()');
["string", "string", "string"]
(1 row)

select jsonb_path_query('"2023-08-15 12:34:56"', '$.timestamp_tz().string()');
ERROR: cannot convert value from timestamp to timestamptz without time zone usage
HINT: Use *_tz() function for time zone support.
select jsonb_path_query_tz('"2023-08-15 12:34:56"', '$.timestamp_tz().string()'); -- should work
jsonb_path_query_tz
--------------------------------
"Tue Aug 15 12:34:56 2023 PDT"
(1 row)

select jsonb_path_query('"2023-08-15 12:34:56 +5:30"', '$.timestamp_tz().string()');
jsonb_path_query
--------------------------------
"Tue Aug 15 00:04:56 2023 PDT"
(1 row)

select jsonb_path_query('"2023-08-15 12:34:56"', '$.timestamp().string()');
jsonb_path_query
----------------------------
"Tue Aug 15 12:34:56 2023"
(1 row)

select jsonb_path_query('"12:34:56 +5:30"', '$.time_tz().string()');
jsonb_path_query
------------------
"12:34:56+05:30"
(1 row)

select jsonb_path_query_tz('"12:34:56"', '$.time_tz().string()'); -- should work
jsonb_path_query_tz
---------------------
"12:34:56-07"
(1 row)

select jsonb_path_query('"12:34:56"', '$.time().string()');
jsonb_path_query
------------------
"12:34:56"
(1 row)

select jsonb_path_query('"2023-08-15"', '$.date().string()');
jsonb_path_query
------------------
"08-15-2023"
(1 row)

set datestyle = 'ISO';
select jsonb_path_query_tz('"2023-08-15 12:34:56"', '$.timestamp_tz().string()'); -- should work
jsonb_path_query_tz
--------------------------
"2023-08-15 12:34:56-07"
(1 row)

select jsonb_path_query('"2023-08-15 12:34:56 +5:30"', '$.timestamp_tz().string()');
jsonb_path_query
--------------------------
"2023-08-15 00:04:56-07"
(1 row)

select jsonb_path_query('"2023-08-15 12:34:56"', '$.timestamp().string()');
jsonb_path_query
-----------------------
"2023-08-15 12:34:56"
(1 row)

select jsonb_path_query('"12:34:56 +5:30"', '$.time_tz().string()');
jsonb_path_query
------------------
"12:34:56+05:30"
(1 row)

select jsonb_path_query_tz('"12:34:56"', '$.time_tz().string()'); -- should work
jsonb_path_query_tz
---------------------
"12:34:56-07"
(1 row)

select jsonb_path_query('"12:34:56"', '$.time().string()');
jsonb_path_query
------------------
"12:34:56"
(1 row)

select jsonb_path_query('"2023-08-15"', '$.date().string()');
jsonb_path_query
------------------
"2023-08-15"
(1 row)

reset datestyle;
-- Test .time()
select jsonb_path_query('null', '$.time()');
ERROR: jsonpath item method .time() can only be applied to a string
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18 changes: 18 additions & 0 deletions src/test/regress/sql/jsonb_jsonpath.sql
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Expand Up @@ -602,6 +602,24 @@ select jsonb_path_query('"2023-08-15 12:34:56 +5:30"', '$.timestamp().string()')
select jsonb_path_query_tz('"2023-08-15 12:34:56 +5:30"', '$.timestamp().string()'); -- should work
select jsonb_path_query_array('[1.23, "yes", false]', '$[*].string()');
select jsonb_path_query_array('[1.23, "yes", false]', '$[*].string().type()');
select jsonb_path_query('"2023-08-15 12:34:56"', '$.timestamp_tz().string()');
select jsonb_path_query_tz('"2023-08-15 12:34:56"', '$.timestamp_tz().string()'); -- should work
select jsonb_path_query('"2023-08-15 12:34:56 +5:30"', '$.timestamp_tz().string()');
select jsonb_path_query('"2023-08-15 12:34:56"', '$.timestamp().string()');
select jsonb_path_query('"12:34:56 +5:30"', '$.time_tz().string()');
select jsonb_path_query_tz('"12:34:56"', '$.time_tz().string()'); -- should work
select jsonb_path_query('"12:34:56"', '$.time().string()');
select jsonb_path_query('"2023-08-15"', '$.date().string()');

set datestyle = 'ISO';
select jsonb_path_query_tz('"2023-08-15 12:34:56"', '$.timestamp_tz().string()'); -- should work
select jsonb_path_query('"2023-08-15 12:34:56 +5:30"', '$.timestamp_tz().string()');
select jsonb_path_query('"2023-08-15 12:34:56"', '$.timestamp().string()');
select jsonb_path_query('"12:34:56 +5:30"', '$.time_tz().string()');
select jsonb_path_query_tz('"12:34:56"', '$.time_tz().string()'); -- should work
select jsonb_path_query('"12:34:56"', '$.time().string()');
select jsonb_path_query('"2023-08-15"', '$.date().string()');
reset datestyle;

-- Test .time()
select jsonb_path_query('null', '$.time()');
Expand Down