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-rw-r--r--src/test/regress/sql/json.sql8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/test/regress/sql/json.sql b/src/test/regress/sql/json.sql
index 8a136d7a273..5b6bc36517e 100644
--- a/src/test/regress/sql/json.sql
+++ b/src/test/regress/sql/json.sql
@@ -296,3 +296,11 @@ select * from json_populate_recordset(null::jpop,'[{"a":"blurfl","x":43.2},{"b":
select * from json_populate_recordset(row('def',99,null)::jpop,'[{"a":"blurfl","x":43.2},{"b":3,"c":"2012-01-20 10:42:53"}]') q;
select * from json_populate_recordset(row('def',99,null)::jpop,'[{"a":[100,200,300],"x":43.2},{"a":{"z":true},"b":3,"c":"2012-01-20 10:42:53"}]') q;
select * from json_populate_recordset(row('def',99,null)::jpop,'[{"c":[100,200,300],"x":43.2},{"a":{"z":true},"b":3,"c":"2012-01-20 10:42:53"}]') q;
+
+-- handling of unicode surrogate pairs
+
+select json '{ "a": "\ud83d\ude04\ud83d\udc36" }' -> 'a' as correct;
+select json '{ "a": "\ud83d\ud83d" }' -> 'a'; -- 2 high surrogates in a row
+select json '{ "a": "\ude04\ud83d" }' -> 'a'; -- surrogates in wrong order
+select json '{ "a": "\ud83dX" }' -> 'a'; -- orphan high surrogate
+select json '{ "a": "\ude04X" }' -> 'a'; -- orphan low surrogate