2 files changed, 18 insertions, 0 deletions
diff --git a/src/test/modules/test_regex/expected/test_regex.out b/src/test/modules/test_regex/expected/test_regex.out
index 44da7d20190..83fb9a8b9ca 100644
--- a/src/test/modules/test_regex/expected/test_regex.out
+++ b/src/test/modules/test_regex/expected/test_regex.out
@@ -2636,6 +2636,20 @@ select * from test_regex('^(.+)( \1)+$', 'abc abc abd', 'RP');
  {2,REG_UBACKREF,REG_UNONPOSIX}
 (1 row)
 
+-- expectNomatch	14.30 RP	{^(.)\1|\1.}	{abcdef}
+select * from test_regex('^(.)\1|\1.', 'abcdef', 'RP');
+           test_regex           
+--------------------------------
+ {1,REG_UBACKREF,REG_UNONPOSIX}
+(1 row)
+
+-- expectNomatch	14.31 RP	{^((.)\2|..)\2}	{abadef}
+select * from test_regex('^((.)\2|..)\2', 'abadef', 'RP');
+           test_regex           
+--------------------------------
+ {2,REG_UBACKREF,REG_UNONPOSIX}
+(1 row)
+
 -- back reference only matches the string, not any constraints
 select * from test_regex('(^\w+).*\1', 'abc abc abc', 'LRP');
                  test_regex                 
diff --git a/src/test/modules/test_regex/sql/test_regex.sql b/src/test/modules/test_regex/sql/test_regex.sql
index 9224fdfdd3a..991f804cb67 100644
--- a/src/test/modules/test_regex/sql/test_regex.sql
+++ b/src/test/modules/test_regex/sql/test_regex.sql
@@ -769,6 +769,10 @@ select * from test_regex('^(.+)( \1)+$', 'abc abc abc', 'RP');
 select * from test_regex('^(.+)( \1)+$', 'abc abd abc', 'RP');
 -- expectNomatch	14.29 RP	{^(.+)( \1)+$}	{abc abc abd}
 select * from test_regex('^(.+)( \1)+$', 'abc abc abd', 'RP');
+-- expectNomatch	14.30 RP	{^(.)\1|\1.}	{abcdef}
+select * from test_regex('^(.)\1|\1.', 'abcdef', 'RP');
+-- expectNomatch	14.31 RP	{^((.)\2|..)\2}	{abadef}
+select * from test_regex('^((.)\2|..)\2', 'abadef', 'RP');
 
 -- back reference only matches the string, not any constraints
 select * from test_regex('(^\w+).*\1', 'abc abc abc', 'LRP');