Movatterモバイル変換

[0]ホーム
URL:

Skip to content

Navigation Menu

Sign in
Appearance settings

Search code, repositories, users, issues, pull requests...

Provide feedback

We read every piece of feedback, and take your input very seriously.

Saved searches

Use saved searches to filter your results more quickly

 Sign up
Appearance settings

Commita0e8df5

Browse files
committed
Allow ALTER TYPE .. ADD ATTRIBUTE .. CASCADE to recurse to descendants.
Without this, adding an attribute to a typed table with an inheritancechild fails, which is surprising.Noah Misch, with minor changes by me.
1 parent8ede427 commita0e8df5

File tree

4 files changed

+23
-3
lines changed

4 files changed

+23
-3
lines changed

‎doc/src/sgml/ref/alter_type.sgml

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -122,7 +122,7 @@ ALTER TYPE <replaceable class="PARAMETER">name</replaceable> ADD VALUE <replacea
122122
<listitem>
123123
<para>
124124
Automatically propagate the operation to typed tables of the
125-
type being altered.
125+
type being altered, and their descendants.
126126
</para>
127127
</listitem>
128128
</varlistentry>

‎src/backend/commands/tablecmds.c

Lines changed: 3 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -3876,7 +3876,8 @@ ATSimpleRecursion(List **wqueue, Relation rel,
38763876
* ATTypedTableRecursion
38773877
*
38783878
* Propagate ALTER TYPE operations to the typed tables of that type.
3879-
* Also check the RESTRICT/CASCADE behavior.
3879+
* Also check the RESTRICT/CASCADE behavior. Given CASCADE, also permit
3880+
* recursion to inheritance children of the typed tables.
38803881
*/
38813882
staticvoid
38823883
ATTypedTableRecursion(List**wqueue,Relationrel,AlterTableCmd*cmd,
@@ -3898,7 +3899,7 @@ ATTypedTableRecursion(List **wqueue, Relation rel, AlterTableCmd *cmd,
38983899

38993900
childrel=relation_open(childrelid,lockmode);
39003901
CheckTableNotInUse(childrel,"ALTER TABLE");
3901-
ATPrepCmd(wqueue,childrel,cmd,false, true,lockmode);
3902+
ATPrepCmd(wqueue,childrel,cmd,true, true,lockmode);
39023903
relation_close(childrel,NoLock);
39033904
}
39043905
}

‎src/test/regress/expected/alter_table.out

Lines changed: 15 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1845,6 +1845,7 @@ ALTER TYPE test_type1 ALTER ATTRIBUTE b TYPE varchar; -- fails
18451845
ERROR: cannot alter type "test_type1" because column "test_tbl1"."y" uses it
18461846
CREATE TYPE test_type2 AS (a int, b text);
18471847
CREATE TABLE test_tbl2 OF test_type2;
1848+
CREATE TABLE test_tbl2_subclass () INHERITS (test_tbl2);
18481849
\d test_type2
18491850
Composite type "public.test_type2"
18501851
Column | Type | Modifiers
@@ -1858,6 +1859,7 @@ Composite type "public.test_type2"
18581859
--------+---------+-----------
18591860
a | integer |
18601861
b | text |
1862+
Number of child tables: 1 (Use \d+ to list them.)
18611863
Typed table of type: test_type2
18621864

18631865
ALTER TYPE test_type2 ADD ATTRIBUTE c text; -- fails
@@ -1879,6 +1881,7 @@ Composite type "public.test_type2"
18791881
a | integer |
18801882
b | text |
18811883
c | text |
1884+
Number of child tables: 1 (Use \d+ to list them.)
18821885
Typed table of type: test_type2
18831886

18841887
ALTER TYPE test_type2 ALTER ATTRIBUTE b TYPE varchar; -- fails
@@ -1900,6 +1903,7 @@ ALTER TYPE test_type2 ALTER ATTRIBUTE b TYPE varchar CASCADE;
19001903
a | integer |
19011904
b | character varying |
19021905
c | text |
1906+
Number of child tables: 1 (Use \d+ to list them.)
19031907
Typed table of type: test_type2
19041908

19051909
ALTER TYPE test_type2 DROP ATTRIBUTE b; -- fails
@@ -1919,6 +1923,7 @@ Composite type "public.test_type2"
19191923
--------+---------+-----------
19201924
a | integer |
19211925
c | text |
1926+
Number of child tables: 1 (Use \d+ to list them.)
19221927
Typed table of type: test_type2
19231928

19241929
ALTER TYPE test_type2 RENAME ATTRIBUTE a TO aa; -- fails
@@ -1938,8 +1943,18 @@ Composite type "public.test_type2"
19381943
--------+---------+-----------
19391944
aa | integer |
19401945
c | text |
1946+
Number of child tables: 1 (Use \d+ to list them.)
19411947
Typed table of type: test_type2
19421948

1949+
\d test_tbl2_subclass
1950+
Table "public.test_tbl2_subclass"
1951+
Column | Type | Modifiers
1952+
--------+---------+-----------
1953+
aa | integer |
1954+
c | text |
1955+
Inherits: test_tbl2
1956+
1957+
DROP TABLE test_tbl2_subclass;
19431958
CREATE TYPE test_type_empty AS ();
19441959
DROP TYPE test_type_empty;
19451960
--

‎src/test/regress/sql/alter_table.sql

Lines changed: 4 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1344,6 +1344,7 @@ ALTER TYPE test_type1 ALTER ATTRIBUTE b TYPE varchar; -- fails
13441344

13451345
CREATETYPEtest_type2AS (aint, btext);
13461346
CREATETABLEtest_tbl2 OF test_type2;
1347+
CREATETABLEtest_tbl2_subclass () INHERITS (test_tbl2);
13471348
\d test_type2
13481349
\d test_tbl2
13491350

@@ -1366,6 +1367,9 @@ ALTER TYPE test_type2 RENAME ATTRIBUTE a TO aa; -- fails
13661367
ALTERTYPE test_type2 RENAME ATTRIBUTE a TO aa CASCADE;
13671368
\d test_type2
13681369
\d test_tbl2
1370+
\d test_tbl2_subclass
1371+
1372+
DROPTABLE test_tbl2_subclass;
13691373

13701374
CREATETYPEtest_type_emptyAS ();
13711375
DROPTYPE test_type_empty;

0 commit comments

Comments
 (0)
[8]ページ先頭
©2009-2025 Movatter.jp