258 lines
10 KiB
Plaintext
258 lines
10 KiB
Plaintext
/* Test inheritance of structure (LIKE) */
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CREATE TABLE inhx (xx text DEFAULT 'text');
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/*
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* Test double inheritance
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*
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* Ensure that defaults are NOT included unless
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* INCLUDING DEFAULTS is specified
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*/
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CREATE TABLE ctla (aa TEXT);
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CREATE TABLE ctlb (bb TEXT) INHERITS (ctla);
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CREATE TABLE foo (LIKE nonexistent);
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ERROR: relation "nonexistent" does not exist
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LINE 1: CREATE TABLE foo (LIKE nonexistent);
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^
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CREATE TABLE inhe (ee text, LIKE inhx) inherits (ctlb);
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INSERT INTO inhe VALUES ('ee-col1', 'ee-col2', DEFAULT, 'ee-col4');
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SELECT * FROM inhe; /* Columns aa, bb, xx value NULL, ee */
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aa | bb | ee | xx
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---------+---------+----+---------
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ee-col1 | ee-col2 | | ee-col4
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(1 row)
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SELECT * FROM inhx; /* Empty set since LIKE inherits structure only */
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xx
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----
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(0 rows)
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SELECT * FROM ctlb; /* Has ee entry */
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aa | bb
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---------+---------
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ee-col1 | ee-col2
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(1 row)
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SELECT * FROM ctla; /* Has ee entry */
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aa
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---------
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ee-col1
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(1 row)
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CREATE TABLE inhf (LIKE inhx, LIKE inhx); /* Throw error */
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ERROR: column "xx" specified more than once
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CREATE TABLE inhf (LIKE inhx INCLUDING DEFAULTS INCLUDING CONSTRAINTS);
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INSERT INTO inhf DEFAULT VALUES;
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SELECT * FROM inhf; /* Single entry with value 'text' */
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xx
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------
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text
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(1 row)
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ALTER TABLE inhx add constraint foo CHECK (xx = 'text');
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ALTER TABLE inhx ADD PRIMARY KEY (xx);
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CREATE TABLE inhg (LIKE inhx); /* Doesn't copy constraint */
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INSERT INTO inhg VALUES ('foo');
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DROP TABLE inhg;
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CREATE TABLE inhg (x text, LIKE inhx INCLUDING CONSTRAINTS, y text); /* Copies constraints */
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INSERT INTO inhg VALUES ('x', 'text', 'y'); /* Succeeds */
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INSERT INTO inhg VALUES ('x', 'text', 'y'); /* Succeeds -- Unique constraints not copied */
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INSERT INTO inhg VALUES ('x', 'foo', 'y'); /* fails due to constraint */
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ERROR: new row for relation "inhg" violates check constraint "foo"
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DETAIL: Failing row contains (x, foo, y).
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SELECT * FROM inhg; /* Two records with three columns in order x=x, xx=text, y=y */
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x | xx | y
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---+------+---
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x | text | y
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x | text | y
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(2 rows)
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DROP TABLE inhg;
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CREATE TABLE inhg (x text, LIKE inhx INCLUDING INDEXES, y text); /* copies indexes */
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INSERT INTO inhg VALUES (5, 10);
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INSERT INTO inhg VALUES (20, 10); -- should fail
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ERROR: duplicate key value violates unique constraint "inhg_pkey"
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DETAIL: Key (xx)=(10) already exists.
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DROP TABLE inhg;
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/* Multiple primary keys creation should fail */
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CREATE TABLE inhg (x text, LIKE inhx INCLUDING INDEXES, PRIMARY KEY(x)); /* fails */
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ERROR: multiple primary keys for table "inhg" are not allowed
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CREATE TABLE inhz (xx text DEFAULT 'text', yy int UNIQUE);
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CREATE UNIQUE INDEX inhz_xx_idx on inhz (xx) WHERE xx <> 'test';
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/* Ok to create multiple unique indexes */
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CREATE TABLE inhg (x text UNIQUE, LIKE inhz INCLUDING INDEXES);
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INSERT INTO inhg (xx, yy, x) VALUES ('test', 5, 10);
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INSERT INTO inhg (xx, yy, x) VALUES ('test', 10, 15);
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INSERT INTO inhg (xx, yy, x) VALUES ('foo', 10, 15); -- should fail
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ERROR: duplicate key value violates unique constraint "inhg_x_key"
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DETAIL: Key (x)=(15) already exists.
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DROP TABLE inhg;
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DROP TABLE inhz;
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-- including storage and comments
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CREATE TABLE ctlt1 (a text CHECK (length(a) > 2) PRIMARY KEY, b text);
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CREATE INDEX ctlt1_b_key ON ctlt1 (b);
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CREATE INDEX ctlt1_fnidx ON ctlt1 ((a || b));
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COMMENT ON COLUMN ctlt1.a IS 'A';
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COMMENT ON COLUMN ctlt1.b IS 'B';
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COMMENT ON CONSTRAINT ctlt1_a_check ON ctlt1 IS 't1_a_check';
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COMMENT ON INDEX ctlt1_pkey IS 'index pkey';
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COMMENT ON INDEX ctlt1_b_key IS 'index b_key';
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ALTER TABLE ctlt1 ALTER COLUMN a SET STORAGE MAIN;
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CREATE TABLE ctlt2 (c text);
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ALTER TABLE ctlt2 ALTER COLUMN c SET STORAGE EXTERNAL;
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COMMENT ON COLUMN ctlt2.c IS 'C';
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CREATE TABLE ctlt3 (a text CHECK (length(a) < 5), c text);
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ALTER TABLE ctlt3 ALTER COLUMN c SET STORAGE EXTERNAL;
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ALTER TABLE ctlt3 ALTER COLUMN a SET STORAGE MAIN;
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COMMENT ON COLUMN ctlt3.a IS 'A3';
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COMMENT ON COLUMN ctlt3.c IS 'C';
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COMMENT ON CONSTRAINT ctlt3_a_check ON ctlt3 IS 't3_a_check';
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CREATE TABLE ctlt4 (a text, c text);
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ALTER TABLE ctlt4 ALTER COLUMN c SET STORAGE EXTERNAL;
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CREATE TABLE ctlt12_storage (LIKE ctlt1 INCLUDING STORAGE, LIKE ctlt2 INCLUDING STORAGE);
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\d+ ctlt12_storage
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Table "public.ctlt12_storage"
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Column | Type | Modifiers | Storage | Stats target | Description
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--------+------+-----------+----------+--------------+-------------
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a | text | not null | main | |
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b | text | | extended | |
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c | text | | external | |
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CREATE TABLE ctlt12_comments (LIKE ctlt1 INCLUDING COMMENTS, LIKE ctlt2 INCLUDING COMMENTS);
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\d+ ctlt12_comments
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Table "public.ctlt12_comments"
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Column | Type | Modifiers | Storage | Stats target | Description
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--------+------+-----------+----------+--------------+-------------
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a | text | not null | extended | | A
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b | text | | extended | | B
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c | text | | extended | | C
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CREATE TABLE ctlt1_inh (LIKE ctlt1 INCLUDING CONSTRAINTS INCLUDING COMMENTS) INHERITS (ctlt1);
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NOTICE: merging column "a" with inherited definition
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NOTICE: merging column "b" with inherited definition
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NOTICE: merging constraint "ctlt1_a_check" with inherited definition
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\d+ ctlt1_inh
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Table "public.ctlt1_inh"
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Column | Type | Modifiers | Storage | Stats target | Description
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--------+------+-----------+----------+--------------+-------------
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a | text | not null | main | | A
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b | text | | extended | | B
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Check constraints:
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"ctlt1_a_check" CHECK (length(a) > 2)
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Inherits: ctlt1
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SELECT description FROM pg_description, pg_constraint c WHERE classoid = 'pg_constraint'::regclass AND objoid = c.oid AND c.conrelid = 'ctlt1_inh'::regclass;
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description
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-------------
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t1_a_check
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(1 row)
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CREATE TABLE ctlt13_inh () INHERITS (ctlt1, ctlt3);
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NOTICE: merging multiple inherited definitions of column "a"
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\d+ ctlt13_inh
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Table "public.ctlt13_inh"
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Column | Type | Modifiers | Storage | Stats target | Description
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--------+------+-----------+----------+--------------+-------------
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a | text | not null | main | |
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b | text | | extended | |
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c | text | | external | |
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Check constraints:
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"ctlt1_a_check" CHECK (length(a) > 2)
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"ctlt3_a_check" CHECK (length(a) < 5)
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Inherits: ctlt1,
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ctlt3
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CREATE TABLE ctlt13_like (LIKE ctlt3 INCLUDING CONSTRAINTS INCLUDING COMMENTS INCLUDING STORAGE) INHERITS (ctlt1);
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NOTICE: merging column "a" with inherited definition
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\d+ ctlt13_like
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Table "public.ctlt13_like"
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Column | Type | Modifiers | Storage | Stats target | Description
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--------+------+-----------+----------+--------------+-------------
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a | text | not null | main | | A3
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b | text | | extended | |
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c | text | | external | | C
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Check constraints:
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"ctlt1_a_check" CHECK (length(a) > 2)
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"ctlt3_a_check" CHECK (length(a) < 5)
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Inherits: ctlt1
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SELECT description FROM pg_description, pg_constraint c WHERE classoid = 'pg_constraint'::regclass AND objoid = c.oid AND c.conrelid = 'ctlt13_like'::regclass;
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description
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-------------
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t3_a_check
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(1 row)
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CREATE TABLE ctlt_all (LIKE ctlt1 INCLUDING ALL);
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\d+ ctlt_all
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Table "public.ctlt_all"
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Column | Type | Modifiers | Storage | Stats target | Description
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--------+------+-----------+----------+--------------+-------------
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a | text | not null | main | | A
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b | text | | extended | | B
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Indexes:
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"ctlt_all_pkey" PRIMARY KEY, btree (a)
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"ctlt_all_b_idx" btree (b)
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"ctlt_all_expr_idx" btree ((a || b))
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Check constraints:
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"ctlt1_a_check" CHECK (length(a) > 2)
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SELECT c.relname, objsubid, description FROM pg_description, pg_index i, pg_class c WHERE classoid = 'pg_class'::regclass AND objoid = i.indexrelid AND c.oid = i.indexrelid AND i.indrelid = 'ctlt_all'::regclass ORDER BY c.relname, objsubid;
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relname | objsubid | description
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----------------+----------+-------------
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ctlt_all_b_idx | 0 | index b_key
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ctlt_all_pkey | 0 | index pkey
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(2 rows)
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CREATE TABLE inh_error1 () INHERITS (ctlt1, ctlt4);
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NOTICE: merging multiple inherited definitions of column "a"
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ERROR: inherited column "a" has a storage parameter conflict
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DETAIL: MAIN versus EXTENDED
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CREATE TABLE inh_error2 (LIKE ctlt4 INCLUDING STORAGE) INHERITS (ctlt1);
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NOTICE: merging column "a" with inherited definition
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ERROR: column "a" has a storage parameter conflict
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DETAIL: MAIN versus EXTENDED
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DROP TABLE ctlt1, ctlt2, ctlt3, ctlt4, ctlt12_storage, ctlt12_comments, ctlt1_inh, ctlt13_inh, ctlt13_like, ctlt_all, ctla, ctlb CASCADE;
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NOTICE: drop cascades to table inhe
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/* LIKE with other relation kinds */
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CREATE TABLE ctlt4 (a int, b text);
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CREATE SEQUENCE ctlseq1;
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CREATE TABLE ctlt10 (LIKE ctlseq1); -- fail
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ERROR: "ctlseq1" is not a table, view, materialized view, composite type, or foreign table
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LINE 1: CREATE TABLE ctlt10 (LIKE ctlseq1);
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^
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CREATE VIEW ctlv1 AS SELECT * FROM ctlt4;
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CREATE TABLE ctlt11 (LIKE ctlv1);
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CREATE TABLE ctlt11a (LIKE ctlv1 INCLUDING ALL);
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CREATE TYPE ctlty1 AS (a int, b text);
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CREATE TABLE ctlt12 (LIKE ctlty1);
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DROP SEQUENCE ctlseq1;
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DROP TYPE ctlty1;
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DROP VIEW ctlv1;
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DROP TABLE IF EXISTS ctlt4, ctlt10, ctlt11, ctlt11a, ctlt12;
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NOTICE: table "ctlt10" does not exist, skipping
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/* LIKE WITH OIDS */
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CREATE TABLE has_oid (x INTEGER) WITH OIDS;
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CREATE TABLE no_oid (y INTEGER);
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CREATE TABLE like_test (z INTEGER, LIKE has_oid);
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SELECT oid FROM like_test;
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oid
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-----
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(0 rows)
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CREATE TABLE like_test2 (z INTEGER, LIKE no_oid);
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SELECT oid FROM like_test2; -- fail
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ERROR: column "oid" does not exist
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LINE 1: SELECT oid FROM like_test2;
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^
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CREATE TABLE like_test3 (z INTEGER, LIKE has_oid, LIKE no_oid);
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SELECT oid FROM like_test3;
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oid
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-----
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(0 rows)
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CREATE TABLE like_test4 (z INTEGER, PRIMARY KEY(oid), LIKE has_oid);
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SELECT oid FROM like_test4;
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oid
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-----
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(0 rows)
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DROP TABLE has_oid, no_oid, like_test, like_test2, like_test3, like_test4;
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