CREATE FOREIGN TABLE tbl () SERVER file_server; -- ERROR
CREATE FOREIGN TABLE agg_text (
- a int2,
+ a int2 CHECK (a >= 0),
b float4
) SERVER file_server
OPTIONS (format 'text', filename '@abs_srcdir@/data/agg.data', delimiter ' ', null '\N');
b float4
) SERVER file_server
OPTIONS (format 'csv', filename '@abs_srcdir@/data/agg.csv', header 'true', delimiter ';', quote '@', escape '"', null '');
+ALTER FOREIGN TABLE agg_csv ADD CHECK (a >= 0);
CREATE FOREIGN TABLE agg_bad (
a int2,
b float4
) SERVER file_server
OPTIONS (format 'csv', filename '@abs_srcdir@/data/agg.bad', header 'true', delimiter ';', quote '@', escape '"', null '');
+ALTER FOREIGN TABLE agg_bad ADD CHECK (a >= 0);
-- per-column options tests
CREATE FOREIGN TABLE text_csv (
-- but this should be ignored
SELECT * FROM agg_csv FOR UPDATE;
+-- constraint exclusion tests
+\t on
+EXPLAIN (VERBOSE, COSTS FALSE) SELECT * FROM agg_csv WHERE a < 0;
+\t off
+SELECT * FROM agg_csv WHERE a < 0;
+SET constraint_exclusion = 'on';
+\t on
+EXPLAIN (VERBOSE, COSTS FALSE) SELECT * FROM agg_csv WHERE a < 0;
+\t off
+SELECT * FROM agg_csv WHERE a < 0;
+RESET constraint_exclusion;
+
-- privilege tests
SET ROLE file_fdw_superuser;
SELECT * FROM agg_text ORDER BY a;
CREATE FOREIGN TABLE tbl () SERVER file_server; -- ERROR
ERROR: filename is required for file_fdw foreign tables
CREATE FOREIGN TABLE agg_text (
- a int2,
+ a int2 CHECK (a >= 0),
b float4
) SERVER file_server
OPTIONS (format 'text', filename '@abs_srcdir@/data/agg.data', delimiter ' ', null '\N');
b float4
) SERVER file_server
OPTIONS (format 'csv', filename '@abs_srcdir@/data/agg.csv', header 'true', delimiter ';', quote '@', escape '"', null '');
+ALTER FOREIGN TABLE agg_csv ADD CHECK (a >= 0);
CREATE FOREIGN TABLE agg_bad (
a int2,
b float4
) SERVER file_server
OPTIONS (format 'csv', filename '@abs_srcdir@/data/agg.bad', header 'true', delimiter ';', quote '@', escape '"', null '');
+ALTER FOREIGN TABLE agg_bad ADD CHECK (a >= 0);
-- per-column options tests
CREATE FOREIGN TABLE text_csv (
word1 text OPTIONS (force_not_null 'true'),
42 | 324.78
(3 rows)
+-- constraint exclusion tests
+\t on
+EXPLAIN (VERBOSE, COSTS FALSE) SELECT * FROM agg_csv WHERE a < 0;
+ Foreign Scan on public.agg_csv
+ Output: a, b
+ Filter: (agg_csv.a < 0)
+ Foreign File: @abs_srcdir@/data/agg.csv
+
+\t off
+SELECT * FROM agg_csv WHERE a < 0;
+ a | b
+---+---
+(0 rows)
+
+SET constraint_exclusion = 'on';
+\t on
+EXPLAIN (VERBOSE, COSTS FALSE) SELECT * FROM agg_csv WHERE a < 0;
+ Result
+ Output: a, b
+ One-Time Filter: false
+
+\t off
+SELECT * FROM agg_csv WHERE a < 0;
+ a | b
+---+---
+(0 rows)
+
+RESET constraint_exclusion;
-- privilege tests
SET ROLE file_fdw_superuser;
SELECT * FROM agg_text ORDER BY a;
407 | 100
(13 rows)
+-- ===================================================================
+-- test check constraints
+-- ===================================================================
+-- Consistent check constraints provide consistent results
+ALTER FOREIGN TABLE ft1 ADD CONSTRAINT ft1_c2positive CHECK (c2 >= 0);
+EXPLAIN (VERBOSE, COSTS false) SELECT count(*) FROM ft1 WHERE c2 < 0;
+ QUERY PLAN
+-------------------------------------------------------------------
+ Aggregate
+ Output: count(*)
+ -> Foreign Scan on public.ft1
+ Remote SQL: SELECT NULL FROM "S 1"."T 1" WHERE ((c2 < 0))
+(4 rows)
+
+SELECT count(*) FROM ft1 WHERE c2 < 0;
+ count
+-------
+ 0
+(1 row)
+
+SET constraint_exclusion = 'on';
+EXPLAIN (VERBOSE, COSTS false) SELECT count(*) FROM ft1 WHERE c2 < 0;
+ QUERY PLAN
+--------------------------------
+ Aggregate
+ Output: count(*)
+ -> Result
+ One-Time Filter: false
+(4 rows)
+
+SELECT count(*) FROM ft1 WHERE c2 < 0;
+ count
+-------
+ 0
+(1 row)
+
+RESET constraint_exclusion;
+-- check constraint is enforced on the remote side, not locally
+INSERT INTO ft1(c1, c2) VALUES(1111, -2); -- c2positive
+ERROR: new row for relation "T 1" violates check constraint "c2positive"
+DETAIL: Failing row contains (1111, -2, null, null, null, null, ft1 , null).
+CONTEXT: Remote SQL command: INSERT INTO "S 1"."T 1"("C 1", c2, c3, c4, c5, c6, c7, c8) VALUES ($1, $2, $3, $4, $5, $6, $7, $8)
+UPDATE ft1 SET c2 = -c2 WHERE c1 = 1; -- c2positive
+ERROR: new row for relation "T 1" violates check constraint "c2positive"
+DETAIL: Failing row contains (1, -1, 00001_trig_update, 1970-01-02 08:00:00+00, 1970-01-02 00:00:00, 1, 1 , foo).
+CONTEXT: Remote SQL command: UPDATE "S 1"."T 1" SET c2 = $2 WHERE ctid = $1
+ALTER FOREIGN TABLE ft1 DROP CONSTRAINT ft1_c2positive;
+-- But inconsistent check constraints provide inconsistent results
+ALTER FOREIGN TABLE ft1 ADD CONSTRAINT ft1_c2negative CHECK (c2 < 0);
+EXPLAIN (VERBOSE, COSTS false) SELECT count(*) FROM ft1 WHERE c2 >= 0;
+ QUERY PLAN
+--------------------------------------------------------------------
+ Aggregate
+ Output: count(*)
+ -> Foreign Scan on public.ft1
+ Remote SQL: SELECT NULL FROM "S 1"."T 1" WHERE ((c2 >= 0))
+(4 rows)
+
+SELECT count(*) FROM ft1 WHERE c2 >= 0;
+ count
+-------
+ 821
+(1 row)
+
+SET constraint_exclusion = 'on';
+EXPLAIN (VERBOSE, COSTS false) SELECT count(*) FROM ft1 WHERE c2 >= 0;
+ QUERY PLAN
+--------------------------------
+ Aggregate
+ Output: count(*)
+ -> Result
+ One-Time Filter: false
+(4 rows)
+
+SELECT count(*) FROM ft1 WHERE c2 >= 0;
+ count
+-------
+ 0
+(1 row)
+
+RESET constraint_exclusion;
+-- local check constraint is not actually enforced
+INSERT INTO ft1(c1, c2) VALUES(1111, 2);
+UPDATE ft1 SET c2 = c2 + 1 WHERE c1 = 1;
+ALTER FOREIGN TABLE ft1 DROP CONSTRAINT ft1_c2negative;
-- ===================================================================
-- test serial columns (ie, sequence-based defaults)
-- ===================================================================
select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1;
select c2, count(*) from "S 1"."T 1" where c2 < 500 group by 1 order by 1;
+-- ===================================================================
+-- test check constraints
+-- ===================================================================
+
+-- Consistent check constraints provide consistent results
+ALTER FOREIGN TABLE ft1 ADD CONSTRAINT ft1_c2positive CHECK (c2 >= 0);
+EXPLAIN (VERBOSE, COSTS false) SELECT count(*) FROM ft1 WHERE c2 < 0;
+SELECT count(*) FROM ft1 WHERE c2 < 0;
+SET constraint_exclusion = 'on';
+EXPLAIN (VERBOSE, COSTS false) SELECT count(*) FROM ft1 WHERE c2 < 0;
+SELECT count(*) FROM ft1 WHERE c2 < 0;
+RESET constraint_exclusion;
+-- check constraint is enforced on the remote side, not locally
+INSERT INTO ft1(c1, c2) VALUES(1111, -2); -- c2positive
+UPDATE ft1 SET c2 = -c2 WHERE c1 = 1; -- c2positive
+ALTER FOREIGN TABLE ft1 DROP CONSTRAINT ft1_c2positive;
+
+-- But inconsistent check constraints provide inconsistent results
+ALTER FOREIGN TABLE ft1 ADD CONSTRAINT ft1_c2negative CHECK (c2 < 0);
+EXPLAIN (VERBOSE, COSTS false) SELECT count(*) FROM ft1 WHERE c2 >= 0;
+SELECT count(*) FROM ft1 WHERE c2 >= 0;
+SET constraint_exclusion = 'on';
+EXPLAIN (VERBOSE, COSTS false) SELECT count(*) FROM ft1 WHERE c2 >= 0;
+SELECT count(*) FROM ft1 WHERE c2 >= 0;
+RESET constraint_exclusion;
+-- local check constraint is not actually enforced
+INSERT INTO ft1(c1, c2) VALUES(1111, 2);
+UPDATE ft1 SET c2 = c2 + 1 WHERE c1 = 1;
+ALTER FOREIGN TABLE ft1 DROP CONSTRAINT ft1_c2negative;
+
-- ===================================================================
-- test serial columns (ie, sequence-based defaults)
-- ===================================================================
ALTER [ COLUMN ] column_name SET ( attribute_option = value [, ... ] )
ALTER [ COLUMN ] column_name RESET ( attribute_option [, ... ] )
ALTER [ COLUMN ] column_name OPTIONS ( [ ADD | SET | DROP ] option ['value'] [, ... ])
+ ADD table_constraint
+ DROP CONSTRAINT [ IF EXISTS ] constraint_name [ RESTRICT | CASCADE ]
DISABLE TRIGGER [ trigger_name | ALL | USER ]
ENABLE TRIGGER [ trigger_name | ALL | USER ]
ENABLE REPLICA TRIGGER trigger_name
-
- IF EXISTS
-
- Do not throw an error if the foreign table does not exist. A notice is
- issued in this case.
-
-
-
-
SET DATA TYPE
- DISABLE/ENABLE [ REPLICA | ALWAYS ] TRIGGER
+ ADD table_constraint
- These forms configure the firing of trigger(s) belonging to the foreign
- table. See the similar form of for more
- details.
+ This form adds a new constraint to a foreign table, using the same
+ syntax as .
+ Currently only CHECK constraints are supported.
+
+
+ Unlike the case when adding a constraint to a regular table, nothing is
+ done to verify the constraint is correct; rather, this action simply
+ declares that some new condition holds for all rows in the foreign
+ table. (See the discussion in .)
+ Note that constraints on foreign tables cannot be marked
+ NOT VALID since such constraints are simply declarative.
- OWNER
+ DROP CONSTRAINT [ IF EXISTS ]
- This form changes the owner of the foreign table to the
- specified user.
+ This form drops the specified constraint on a foreign table.
+ If IF EXISTS is specified and the constraint
+ does not exist, no error is thrown.
+ In this case a notice is issued instead.
- RENAME
+ DISABLE/ENABLE [ REPLICA | ALWAYS ] TRIGGER
- The RENAME forms change the name of a foreign table
- or the name of an individual column in a foreign table.
+ These forms configure the firing of trigger(s) belonging to the foreign
+ table. See the similar form of for more
+ details.
- SET SCHEMA
+ OWNER
- This form moves the foreign table into another schema.
+ This form changes the owner of the foreign table to the
+ specified user.
+
+ RENAME
+
+ The RENAME forms change the name of a foreign table
+ or the name of an individual column in a foreign table.
+
+
+
+
+
+ SET SCHEMA
+
+ This form moves the foreign table into another schema.
+
+
+
+
columns in a single command.
+ If the command is written as ALTER FOREIGN TABLE IF EXISTS ...
+ and the foreign table does not exist, no error is thrown. A notice is
+ issued in this case.
+
+
You must own the table to use ALTER FOREIGN TABLE.
To change the schema of a foreign table, you must also have
+
+ table_constraint
+
+ New table constraint for the foreign table.
+
+
+
+
+
+ constraint_name
+
+ Name of an existing constraint to drop.
+
+
+
+
CASCADE
Automatically drop objects that depend on the dropped column
- (for example, views referencing the column).
+ or constraint (for example, views referencing the column).
RESTRICT
- Refuse to drop the column if there are any dependent
+ Refuse to drop the column or constraint if there are any dependent
objects. This is the default behavior.
Consistency with the foreign server is not checked when a column is added
or removed with ADD COLUMN or
- DROP COLUMN, a NOT NULL constraint is
- added, or a column type is changed with SET DATA TYPE. It is
- the user's responsibility to ensure that the table definition matches the
- remote side.
+ DROP COLUMN, a NOT NULL
+ or CHECK constraint is added, or a column type is changed
+ with SET DATA TYPE. It is the user's responsibility to ensure
+ that the table definition matches the remote side.
extension of SQL, which disallows zero-column foreign tables.
+
+
+
See Also
+
+
+
+
+
+
CREATE FOREIGN TABLE [ IF NOT EXISTS ] table_name ( [
- column_name data_type [ OPTIONS ( option 'value' [, ... ] ) ] [ COLLATE collation ] [ column_constraint [ ... ] ]
+ { column_name data_type [ OPTIONS ( option 'value' [, ... ] ) ] [ COLLATE collation ] [ column_constraint [ ... ] ]
+ | table_constraint }
[, ... ]
] )
SERVER server_name
[ CONSTRAINT constraint_name ]
{ NOT NULL |
NULL |
+ CHECK ( expression ) |
DEFAULT default_expr }
+
+
and table_constraint is:+
+[ CONSTRAINT constraint_name ]
+CHECK ( expression )
+
+ CHECK ( expression )
+
+ The CHECK clause specifies an expression producing a
+ Boolean result which each row in the foreign table is expected
+ to satisfy; that is, the expression should produce TRUE or UNKNOWN,
+ never FALSE, for all rows in the foreign table.
+ A check constraint specified as a column constraint should
+ reference that column's value only, while an expression
+ appearing in a table constraint can reference multiple columns.
+
+
+ Currently, CHECK expressions cannot contain
+ subqueries nor refer to variables other than columns of the
+ current row. The system column tableoid
+ may be referenced, but not any other system column.
+
+
+
+
DEFAULT
default_expr
+
+
Notes
+
+ Constraints on foreign tables (such as CHECK
+ or NOT NULL clauses) are not enforced by the
+ core
PostgreSQL system, and most foreign data wrappers+ do not attempt to enforce them either; that is, the constraint is
+ simply assumed to hold true. There would be little point in such
+ enforcement since it would only apply to rows inserted or updated via
+ the foreign table, and not to rows modified by other means, such as
+ directly on the remote server. Instead, a constraint attached to a
+ foreign table should represent a constraint that is being enforced by
+ the remote server.
+
+
+ Some special-purpose foreign data wrappers might be the only access
+ mechanism for the data they access, and in that case it might be
+ appropriate for the foreign data wrapper itself to perform constraint
+ enforcement. But you should not assume that a wrapper does that
+ unless its documentation says so.
+
+
+ Although
PostgreSQL does not attempt to enforce+ constraints on foreign tables, it does assume that they are correct
+ for purposes of query optimization. If there are rows visible in the
+ foreign table that do not satisfy a declared constraint, queries on
+ the table might produce incorrect answers. It is the user's
+ responsibility to ensure that the constraint definition matches
+ reality.
+
+
Examples
*/
if (!OidIsValid(relid))
{
- /* Use binary-upgrade override for pg_class.oid/relfilenode? */
+ /* Use binary-upgrade override for pg_class.oid/relfilenode? */
if (IsBinaryUpgrade &&
(relkind == RELKIND_RELATION || relkind == RELKIND_SEQUENCE ||
relkind == RELKIND_VIEW || relkind == RELKIND_MATVIEW ||
expr = stringToNode(cdef->cooked_expr);
}
+ /* Don't allow NOT VALID for foreign tables */
+ if (cdef->skip_validation &&
+ rel->rd_rel->relkind == RELKIND_FOREIGN_TABLE)
+ ereport(ERROR,
+ (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+ errmsg("CHECK constraints on foreign tables cannot be marked NOT VALID")));
+
/*
* Check name uniqueness, or generate a name if none was given.
*/
ereport(ERROR,
(errcode(ERRCODE_INVALID_TABLE_DEFINITION),
errmsg("ON COMMIT can only be used on temporary tables")));
- if (stmt->constraints != NIL && relkind == RELKIND_FOREIGN_TABLE)
- ereport(ERROR,
- (errcode(ERRCODE_WRONG_OBJECT_TYPE),
- errmsg("constraints are not supported on foreign tables")));
/*
* Look up the namespace in which we are supposed to create the relation,
pass = AT_PASS_ADD_INDEX;
break;
case AT_AddConstraint: /* ADD CONSTRAINT */
- ATSimplePermissions(rel, ATT_TABLE);
+ ATSimplePermissions(rel, ATT_TABLE | ATT_FOREIGN_TABLE);
/* Recursion occurs during execution phase */
/* No command-specific prep needed except saving recurse flag */
if (recurse)
pass = AT_PASS_ADD_CONSTR;
break;
case AT_DropConstraint: /* DROP CONSTRAINT */
- ATSimplePermissions(rel, ATT_TABLE);
+ ATSimplePermissions(rel, ATT_TABLE | ATT_FOREIGN_TABLE);
/* Recursion occurs during execution phase */
/* No command-specific prep needed except saving recurse flag */
if (recurse)
break;
case CONSTR_CHECK:
+ cxt->ckconstraints = lappend(cxt->ckconstraints, constraint);
+ break;
+
+ case CONSTR_PRIMARY:
if (cxt->isforeign)
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
- errmsg("constraints are not supported on foreign tables"),
+ errmsg("primary key constraints are not supported on foreign tables"),
parser_errposition(cxt->pstate,
constraint->location)));
- cxt->ckconstraints = lappend(cxt->ckconstraints, constraint);
- break;
+ /* FALL THRU */
- case CONSTR_PRIMARY:
case CONSTR_UNIQUE:
if (cxt->isforeign)
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
- errmsg("constraints are not supported on foreign tables"),
+ errmsg("unique constraints are not supported on foreign tables"),
parser_errposition(cxt->pstate,
constraint->location)));
if (constraint->keys == NIL)
if (cxt->isforeign)
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
- errmsg("constraints are not supported on foreign tables"),
+ errmsg("foreign key constraints are not supported on foreign tables"),
parser_errposition(cxt->pstate,
constraint->location)));
static void
transformTableConstraint(CreateStmtContext *cxt, Constraint *constraint)
{
- if (cxt->isforeign)
- ereport(ERROR,
- (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
- errmsg("constraints are not supported on foreign tables"),
- parser_errposition(cxt->pstate,
- constraint->location)));
-
switch (constraint->contype)
{
case CONSTR_PRIMARY:
+ if (cxt->isforeign)
+ ereport(ERROR,
+ (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+ errmsg("primary key constraints are not supported on foreign tables"),
+ parser_errposition(cxt->pstate,
+ constraint->location)));
+ cxt->ixconstraints = lappend(cxt->ixconstraints, constraint);
+ break;
+
case CONSTR_UNIQUE:
+ if (cxt->isforeign)
+ ereport(ERROR,
+ (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+ errmsg("unique constraints are not supported on foreign tables"),
+ parser_errposition(cxt->pstate,
+ constraint->location)));
+ cxt->ixconstraints = lappend(cxt->ixconstraints, constraint);
+ break;
+
case CONSTR_EXCLUSION:
+ if (cxt->isforeign)
+ ereport(ERROR,
+ (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+ errmsg("exclusion constraints are not supported on foreign tables"),
+ parser_errposition(cxt->pstate,
+ constraint->location)));
cxt->ixconstraints = lappend(cxt->ixconstraints, constraint);
break;
break;
case CONSTR_FOREIGN:
+ if (cxt->isforeign)
+ ereport(ERROR,
+ (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+ errmsg("foreign key constraints are not supported on foreign tables"),
+ parser_errposition(cxt->pstate,
+ constraint->location)));
cxt->fkconstraints = lappend(cxt->fkconstraints, constraint);
break;
LINE 1: CREATE FOREIGN TABLE ft1 () SERVER s0 WITH OIDS;
^
CREATE FOREIGN TABLE ft1 (
- c1 integer OPTIONS ("param 1" 'val1') NOT NULL,
+ c1 integer OPTIONS ("param 1" 'val1') PRIMARY KEY,
+ c2 text OPTIONS (param2 'val2', param3 'val3'),
+ c3 date
+) SERVER s0 OPTIONS (delimiter ',', quote '"', "be quoted" 'value'); -- ERROR
+ERROR: primary key constraints are not supported on foreign tables
+LINE 2: c1 integer OPTIONS ("param 1" 'val1') PRIMARY KEY,
+ ^
+CREATE TABLE ref_table (id integer PRIMARY KEY);
+CREATE FOREIGN TABLE ft1 (
+ c1 integer OPTIONS ("param 1" 'val1') REFERENCES ref_table (id),
c2 text OPTIONS (param2 'val2', param3 'val3'),
c3 date
+) SERVER s0 OPTIONS (delimiter ',', quote '"', "be quoted" 'value'); -- ERROR
+ERROR: foreign key constraints are not supported on foreign tables
+LINE 2: c1 integer OPTIONS ("param 1" 'val1') REFERENCES ref_table ...
+ ^
+DROP TABLE ref_table;
+CREATE FOREIGN TABLE ft1 (
+ c1 integer OPTIONS ("param 1" 'val1') NOT NULL,
+ c2 text OPTIONS (param2 'val2', param3 'val3'),
+ c3 date,
+ UNIQUE (c3)
+) SERVER s0 OPTIONS (delimiter ',', quote '"', "be quoted" 'value'); -- ERROR
+ERROR: unique constraints are not supported on foreign tables
+LINE 5: UNIQUE (c3)
+ ^
+CREATE FOREIGN TABLE ft1 (
+ c1 integer OPTIONS ("param 1" 'val1') NOT NULL,
+ c2 text OPTIONS (param2 'val2', param3 'val3') CHECK (c2 <> ''),
+ c3 date,
+ CHECK (c3 BETWEEN '1994-01-01'::date AND '1994-01-31'::date)
) SERVER s0 OPTIONS (delimiter ',', quote '"', "be quoted" 'value');
COMMENT ON FOREIGN TABLE ft1 IS 'ft1';
COMMENT ON COLUMN ft1.c1 IS 'ft1.c1';
c1 | integer | not null | ("param 1" 'val1') | plain | | ft1.c1
c2 | text | | (param2 'val2', param3 'val3') | extended | |
c3 | date | | | plain | |
+Check constraints:
+ "ft1_c2_check" CHECK (c2 <> ''::text)
+ "ft1_c3_check" CHECK (c3 >= '01-01-1994'::date AND c3 <= '01-31-1994'::date)
Server: s0
FDW Options: (delimiter ',', quote '"', "be quoted" 'value')
c8 | text | | (p2 'V2') | extended | |
c9 | integer | | | plain | |
c10 | integer | | (p1 'v1') | plain | |
+Check constraints:
+ "ft1_c2_check" CHECK (c2 <> ''::text)
+ "ft1_c3_check" CHECK (c3 >= '01-01-1994'::date AND c3 <= '01-31-1994'::date)
Server: s0
FDW Options: (delimiter ',', quote '"', "be quoted" 'value')
ALTER FOREIGN TABLE ft1 ALTER COLUMN c8 SET DATA TYPE integer; -- ERROR
ERROR: cannot alter foreign table "ft1" because column "use_ft1_column_type.x" uses its row type
DROP TABLE use_ft1_column_type;
-ALTER FOREIGN TABLE ft1 ADD CONSTRAINT ft1_c9_check CHECK (c9 < 0); -- ERROR
-ERROR: constraints are not supported on foreign tables
-LINE 1: ALTER FOREIGN TABLE ft1 ADD CONSTRAINT ft1_c9_check CHECK (c...
+ALTER FOREIGN TABLE ft1 ADD PRIMARY KEY (c7); -- ERROR
+ERROR: primary key constraints are not supported on foreign tables
+LINE 1: ALTER FOREIGN TABLE ft1 ADD PRIMARY KEY (c7);
^
-ALTER FOREIGN TABLE ft1 DROP CONSTRAINT no_const; -- ERROR
+ALTER FOREIGN TABLE ft1 ADD CONSTRAINT ft1_c9_check CHECK (c9 < 0) NOT VALID; -- ERROR
+ERROR: CHECK constraints on foreign tables cannot be marked NOT VALID
+ALTER FOREIGN TABLE ft1 ADD CONSTRAINT ft1_c9_check CHECK (c9 < 0);
+ALTER FOREIGN TABLE ft1 ALTER CONSTRAINT ft1_c9_check DEFERRABLE; -- ERROR
ERROR: "ft1" is not a table
+ALTER FOREIGN TABLE ft1 DROP CONSTRAINT ft1_c9_check;
+ALTER FOREIGN TABLE ft1 DROP CONSTRAINT no_const; -- ERROR
+ERROR: constraint "no_const" of relation "ft1" does not exist
ALTER FOREIGN TABLE ft1 DROP CONSTRAINT IF EXISTS no_const;
-ERROR: "ft1" is not a table
-ALTER FOREIGN TABLE ft1 DROP CONSTRAINT ft1_c1_check;
-ERROR: "ft1" is not a table
+NOTICE: constraint "no_const" of relation "ft1" does not exist, skipping
ALTER FOREIGN TABLE ft1 SET WITH OIDS; -- ERROR
ERROR: "ft1" is not a table
ALTER FOREIGN TABLE ft1 OWNER TO regress_test_role;
c7 | integer | | (p1 'v1', p2 'v2')
c8 | text | | (p2 'V2')
c10 | integer | | (p1 'v1')
+Check constraints:
+ "ft1_c2_check" CHECK (c2 <> ''::text)
+ "ft1_c3_check" CHECK (c3 >= '01-01-1994'::date AND c3 <= '01-31-1994'::date)
Server: s0
FDW Options: (quote '~', "be quoted" 'value', escape '@')
CREATE FOREIGN TABLE ft1 () SERVER no_server; -- ERROR
CREATE FOREIGN TABLE ft1 () SERVER s0 WITH OIDS; -- ERROR
CREATE FOREIGN TABLE ft1 (
- c1 integer OPTIONS ("param 1" 'val1') NOT NULL,
+ c1 integer OPTIONS ("param 1" 'val1') PRIMARY KEY,
c2 text OPTIONS (param2 'val2', param3 'val3'),
c3 date
+) SERVER s0 OPTIONS (delimiter ',', quote '"', "be quoted" 'value'); -- ERROR
+CREATE TABLE ref_table (id integer PRIMARY KEY);
+CREATE FOREIGN TABLE ft1 (
+ c1 integer OPTIONS ("param 1" 'val1') REFERENCES ref_table (id),
+ c2 text OPTIONS (param2 'val2', param3 'val3'),
+ c3 date
+) SERVER s0 OPTIONS (delimiter ',', quote '"', "be quoted" 'value'); -- ERROR
+DROP TABLE ref_table;
+CREATE FOREIGN TABLE ft1 (
+ c1 integer OPTIONS ("param 1" 'val1') NOT NULL,
+ c2 text OPTIONS (param2 'val2', param3 'val3'),
+ c3 date,
+ UNIQUE (c3)
+) SERVER s0 OPTIONS (delimiter ',', quote '"', "be quoted" 'value'); -- ERROR
+CREATE FOREIGN TABLE ft1 (
+ c1 integer OPTIONS ("param 1" 'val1') NOT NULL,
+ c2 text OPTIONS (param2 'val2', param3 'val3') CHECK (c2 <> ''),
+ c3 date,
+ CHECK (c3 BETWEEN '1994-01-01'::date AND '1994-01-31'::date)
) SERVER s0 OPTIONS (delimiter ',', quote '"', "be quoted" 'value');
COMMENT ON FOREIGN TABLE ft1 IS 'ft1';
COMMENT ON COLUMN ft1.c1 IS 'ft1.c1';
CREATE TABLE use_ft1_column_type (x ft1);
ALTER FOREIGN TABLE ft1 ALTER COLUMN c8 SET DATA TYPE integer; -- ERROR
DROP TABLE use_ft1_column_type;
-ALTER FOREIGN TABLE ft1 ADD CONSTRAINT ft1_c9_check CHECK (c9 < 0); -- ERROR
+ALTER FOREIGN TABLE ft1 ADD PRIMARY KEY (c7); -- ERROR
+ALTER FOREIGN TABLE ft1 ADD CONSTRAINT ft1_c9_check CHECK (c9 < 0) NOT VALID; -- ERROR
+ALTER FOREIGN TABLE ft1 ADD CONSTRAINT ft1_c9_check CHECK (c9 < 0);
+ALTER FOREIGN TABLE ft1 ALTER CONSTRAINT ft1_c9_check DEFERRABLE; -- ERROR
+ALTER FOREIGN TABLE ft1 DROP CONSTRAINT ft1_c9_check;
ALTER FOREIGN TABLE ft1 DROP CONSTRAINT no_const; -- ERROR
ALTER FOREIGN TABLE ft1 DROP CONSTRAINT IF EXISTS no_const;
-ALTER FOREIGN TABLE ft1 DROP CONSTRAINT ft1_c1_check;
ALTER FOREIGN TABLE ft1 SET WITH OIDS; -- ERROR
ALTER FOREIGN TABLE ft1 OWNER TO regress_test_role;
ALTER FOREIGN TABLE ft1 OPTIONS (DROP delimiter, SET quote '~', ADD escape '@');
projects / postgresql.git / commitdiff