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-rw-r--r--src/backend/commands/typecmds.c14
-rw-r--r--src/test/regress/expected/domain.out5
-rw-r--r--src/test/regress/sql/domain.sql3
3 files changed, 19 insertions, 3 deletions
diff --git a/src/backend/commands/typecmds.c b/src/backend/commands/typecmds.c
index 45ae7472ab5..26d985193ae 100644
--- a/src/backend/commands/typecmds.c
+++ b/src/backend/commands/typecmds.c
@@ -939,11 +939,19 @@ DefineDomain(ParseState *pstate, CreateDomainStmt *stmt)
break;
case CONSTR_NOTNULL:
- if (nullDefined && !typNotNull)
+ if (nullDefined)
+ {
+ if (!typNotNull)
+ ereport(ERROR,
+ errcode(ERRCODE_SYNTAX_ERROR),
+ errmsg("conflicting NULL/NOT NULL constraints"),
+ parser_errposition(pstate, constr->location));
+
ereport(ERROR,
- errcode(ERRCODE_SYNTAX_ERROR),
- errmsg("conflicting NULL/NOT NULL constraints"),
+ errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
+ errmsg("redundant NOT NULL constraint definition"),
parser_errposition(pstate, constr->location));
+ }
if (constr->is_no_inherit)
ereport(ERROR,
errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
diff --git a/src/test/regress/expected/domain.out b/src/test/regress/expected/domain.out
index ba6f05eeb7d..b5ea707df31 100644
--- a/src/test/regress/expected/domain.out
+++ b/src/test/regress/expected/domain.out
@@ -1019,6 +1019,11 @@ insert into domain_test values (1, 2);
-- should fail
alter table domain_test add column c str_domain;
ERROR: domain str_domain does not allow null values
+-- disallow duplicated not-null constraints
+create domain int_domain1 as int constraint nn1 not null constraint nn2 not null;
+ERROR: redundant NOT NULL constraint definition
+LINE 1: ...domain int_domain1 as int constraint nn1 not null constraint...
+ ^
create domain str_domain2 as text check (value <> 'foo') default 'foo';
-- should fail
alter table domain_test add column d str_domain2;
diff --git a/src/test/regress/sql/domain.sql b/src/test/regress/sql/domain.sql
index b752a63ab5f..b8f5a639712 100644
--- a/src/test/regress/sql/domain.sql
+++ b/src/test/regress/sql/domain.sql
@@ -602,6 +602,9 @@ insert into domain_test values (1, 2);
-- should fail
alter table domain_test add column c str_domain;
+-- disallow duplicated not-null constraints
+create domain int_domain1 as int constraint nn1 not null constraint nn2 not null;
+
create domain str_domain2 as text check (value <> 'foo') default 'foo';
-- should fail