mirror of https://github.com/citusdata/citus.git
119 lines
4.5 KiB
Plaintext
119 lines
4.5 KiB
Plaintext
CREATE SCHEMA issue_7887;
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SET search_path to 'issue_7887';
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CREATE TABLE local1 (
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id text not null primary key
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);
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CREATE TABLE reference1 (
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id int not null primary key,
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reference_col1 text not null
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);
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SELECT create_reference_table('reference1');
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create_reference_table
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---------------------------------------------------------------------
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(1 row)
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CREATE TABLE local2 (
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id int not null generated always as identity,
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local1fk text not null,
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reference1fk int not null,
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constraint loc1fk foreign key (local1fk) references local1(id),
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constraint reference1fk foreign key (reference1fk) references reference1(id),
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constraint testlocpk primary key (id)
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);
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INSERT INTO local1(id) VALUES ('aaaaa'), ('bbbbb'), ('ccccc');
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INSERT INTO reference1(id, reference_col1) VALUES (1, 'test'), (2, 'test2'), (3, 'test3');
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--
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-- Partial insert: omit the identity column
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-- This triggers the known bug in older code paths if not fixed.
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--
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INSERT INTO local2(local1fk, reference1fk)
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SELECT id, 1
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FROM local1;
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-- Check inserted rows in local2
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SELECT * FROM local2;
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id | local1fk | reference1fk
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---------------------------------------------------------------------
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1 | aaaaa | 1
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2 | bbbbb | 1
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3 | ccccc | 1
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(3 rows)
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-- We do a "INSERT INTO local2(id, local1fk, reference1fk) SELECT 9999, id, 2" which
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-- should fail under normal PG rules if no OVERRIDING clause is used.
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INSERT INTO local2(id, local1fk, reference1fk)
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SELECT 9999, id, 2 FROM local1 LIMIT 1;
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ERROR: cannot insert a non-DEFAULT value into column "id"
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DETAIL: Column "id" is an identity column defined as GENERATED ALWAYS.
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HINT: Use OVERRIDING SYSTEM VALUE to override.
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-- Using OVERRIDING SYSTEM VALUE to override ALWAYS identity
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INSERT INTO local2(id, local1fk, reference1fk)
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OVERRIDING SYSTEM VALUE
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SELECT 9999, id, 2 FROM local1 LIMIT 1;
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-- Create a second table with BY DEFAULT identity to test different identity mode
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CREATE TABLE local2_bydefault (
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id int NOT NULL GENERATED BY DEFAULT AS IDENTITY,
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local1fk text NOT NULL,
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reference1fk int NOT NULL,
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CONSTRAINT loc1fk_bd FOREIGN KEY (local1fk) REFERENCES local1(id),
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CONSTRAINT reference1fk_bd FOREIGN KEY (reference1fk) REFERENCES reference1(id),
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CONSTRAINT testlocpk_bd PRIMARY KEY (id)
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);
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INSERT INTO local1(id) VALUES ('xxxxx'), ('yyyyy'), ('ddddd'), ('zzzzz');
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INSERT INTO local2_bydefault(local1fk, reference1fk)
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SELECT 'xxxxx', 1;
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-- Show inserted row in local2_bydefault
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SELECT * FROM local2_bydefault;
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id | local1fk | reference1fk
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---------------------------------------------------------------------
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1 | xxxxx | 1
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(1 row)
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--
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-- Overriding a BY DEFAULT identity with user value
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-- (which is allowed even without OVERRIDING clause).
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--
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-- Provide explicit id for BY DEFAULT identity => no special OVERRIDING needed
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INSERT INTO local2_bydefault(id, local1fk, reference1fk)
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VALUES (5000, 'yyyyy', 2);
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-- Show rows (we expect id=5000 and one with auto-generated ID)
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SELECT * FROM local2_bydefault ORDER BY id;
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id | local1fk | reference1fk
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---------------------------------------------------------------------
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1 | xxxxx | 1
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5000 | yyyyy | 2
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(2 rows)
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-- Insert referencing reference1fk=3 => partial insert on both tables
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INSERT INTO local2(local1fk, reference1fk)
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VALUES ('ddddd', 3);
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INSERT INTO local2_bydefault(local1fk, reference1fk)
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SELECT 'zzzzz', 3;
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-- Show final state of local2 and local2_bydefault
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SELECT 'local2' as table_name, * FROM local2
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UNION ALL
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SELECT 'local2_bydefault', * FROM local2_bydefault
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ORDER BY table_name, id;
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table_name | id | local1fk | reference1fk
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---------------------------------------------------------------------
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local2 | 1 | aaaaa | 1
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local2 | 2 | bbbbb | 1
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local2 | 3 | ccccc | 1
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local2 | 4 | ddddd | 3
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local2 | 9999 | aaaaa | 2
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local2_bydefault | 1 | xxxxx | 1
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local2_bydefault | 2 | zzzzz | 3
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local2_bydefault | 5000 | yyyyy | 2
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(8 rows)
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DROP SCHEMA issue_7887 CASCADE;
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NOTICE: drop cascades to 8 other objects
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DETAIL: drop cascades to table local1_102010
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drop cascades to table reference1
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drop cascades to table reference1_102008
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drop cascades to table local2_102009
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drop cascades to table local2
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drop cascades to table local1
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drop cascades to table local2_bydefault_102011
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drop cascades to table local2_bydefault
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