Stabilize jsonb_path_query test case.

An operation like '12:34:56'::time_tz takes the UTC offset from
the prevailing time zone, which means that the results change
across DST transitions.  One of the test cases added in ed055d249
failed to consider this.

Per report from Bernhard Wiedemann.  Back-patch to v17, as the
test case was.

Discussion: https://postgr.es/m/ba8e1bc0-8a99-45b7-8397-3f2e94415e03@suse.de

diff --git a/src/test/regress/expected/jsonb_jsonpath.out b/src/test/regress/expected/jsonb_jsonpath.out
index acdf7e436f9172fbcc4a4688cbd652de5636e2dc..4bcd4e91a2991426143891eda2ae9236d6610b48 100644 (file)
--- a/src/test/regress/expected/jsonb_jsonpath.out
+++ b/src/test/regress/expected/jsonb_jsonpath.out
@@ -2684,12 +2684,16 @@ select jsonb_path_query('"12:34:56 +5:30"', '$.time_tz().string()');
  "12:34:56+05:30"
 (1 row)
 
+-- this timetz usage will absorb the UTC offset of the current timezone setting
+begin;
+set local timezone = 'UTC-10';
 select jsonb_path_query_tz('"12:34:56"', '$.time_tz().string()');
  jsonb_path_query_tz 
 ---------------------
- "12:34:56-07:00"
+ "12:34:56+10:00"
 (1 row)
 
+rollback;
 select jsonb_path_query('"12:34:56"', '$.time().string()');
  jsonb_path_query 
 ------------------

diff --git a/src/test/regress/sql/jsonb_jsonpath.sql b/src/test/regress/sql/jsonb_jsonpath.sql
index da3f7969ca2900b080961e844ae3ffc0dbdc3d31..3e8929a5269bc9508865bbc753867562073b8911 100644 (file)
--- a/src/test/regress/sql/jsonb_jsonpath.sql
+++ b/src/test/regress/sql/jsonb_jsonpath.sql
@@ -607,7 +607,11 @@ select jsonb_path_query_tz('"2023-08-15 12:34:56"', '$.timestamp_tz().string()')
 select jsonb_path_query('"2023-08-15 12:34:56 +5:30"', '$.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()');
+-- this timetz usage will absorb the UTC offset of the current timezone setting
+begin;
+set local timezone = 'UTC-10';
 select jsonb_path_query_tz('"12:34:56"', '$.time_tz().string()');
+rollback;
 select jsonb_path_query('"12:34:56"', '$.time().string()');
 select jsonb_path_query('"2023-08-15"', '$.date().string()');