mirror of https://github.com/citusdata/citus.git
441 lines
21 KiB
Plaintext
441 lines
21 KiB
Plaintext
-- Tests to check propagation of all view commands
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CREATE SCHEMA view_prop_schema;
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SET search_path to view_prop_schema;
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-- Check creating views depending on different types of tables
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-- and from multiple schemas
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-- Check the most basic one
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CREATE VIEW prop_view_basic AS SELECT 1;
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-- Try to create view depending local table, then try to recreate it after distributing the table
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CREATE TABLE view_table_1(id int, val_1 text);
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CREATE VIEW prop_view_1 AS
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SELECT * FROM view_table_1;
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WARNING: "view prop_view_1" has dependency to "table view_table_1" that is not in Citus' metadata
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DETAIL: "view prop_view_1" will be created only locally
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HINT: Distribute "table view_table_1" first to distribute "view prop_view_1"
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SELECT create_distributed_table('view_table_1', 'id');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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CREATE OR REPLACE VIEW prop_view_1 AS
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SELECT * FROM view_table_1;
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-- Try to create view depending local table, then try to recreate it after making the table reference table
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CREATE TABLE view_table_2(id int PRIMARY KEY, val_1 text);
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CREATE VIEW prop_view_2 AS
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SELECT view_table_1.id, view_table_2.val_1 FROM view_table_1 INNER JOIN view_table_2
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ON view_table_1.id = view_table_2.id;
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WARNING: "view prop_view_2" has dependency to "table view_table_2" that is not in Citus' metadata
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DETAIL: "view prop_view_2" will be created only locally
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HINT: Distribute "table view_table_2" first to distribute "view prop_view_2"
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SELECT create_reference_table('view_table_2');
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create_reference_table
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---------------------------------------------------------------------
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(1 row)
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CREATE OR REPLACE VIEW prop_view_2 AS
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SELECT view_table_1.id, view_table_2.val_1 FROM view_table_1 INNER JOIN view_table_2
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ON view_table_1.id = view_table_2.id;
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-- Try to create view depending local table, then try to recreate it after making the table citus local table
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CREATE TABLE view_table_3(id int, val_1 text);
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CREATE VIEW prop_view_3 AS
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SELECT * FROM view_table_1 WHERE id IN
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(SELECT view_table_2.id FROM view_table_2 INNER JOIN view_table_3 ON view_table_2.id = view_table_3.id);
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WARNING: "view prop_view_3" has dependency to "table view_table_3" that is not in Citus' metadata
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DETAIL: "view prop_view_3" will be created only locally
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HINT: Distribute "table view_table_3" first to distribute "view prop_view_3"
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SET client_min_messages TO WARNING;
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SELECT 1 FROM citus_add_node('localhost', :master_port, groupid=>0);
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?column?
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---------------------------------------------------------------------
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1
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(1 row)
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RESET client_min_messages;
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ALTER TABLE view_table_3
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ADD CONSTRAINT f_key_for_local_table
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FOREIGN KEY(id)
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REFERENCES view_table_2(id);
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CREATE OR REPLACE VIEW prop_view_3 AS
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SELECT * FROM view_table_1 WHERE id IN
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(SELECT view_table_2.id FROM view_table_2 INNER JOIN view_table_3 ON view_table_2.id = view_table_3.id);
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-- Try to create view depending on PG metadata table
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CREATE VIEW prop_view_4 AS
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SELECT * FROM pg_stat_activity;
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-- Try to create view depending on Citus metadata table
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CREATE VIEW prop_view_5 AS
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SELECT * FROM citus_dist_stat_activity;
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-- Try to create table depending on a local table from another schema, then try to create it again after distributing the table
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CREATE SCHEMA view_prop_schema_inner;
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SET search_path TO view_prop_schema_inner;
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-- Create local table for tests below
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CREATE TABLE view_table_4(id int, val_1 text);
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-- Create a distributed table and view to test drop view below
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CREATE TABLE inner_view_table(id int);
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SELECT create_distributed_table('inner_view_table','id');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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CREATE VIEW inner_view_prop AS SELECT * FROM inner_view_table;
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SET search_path to view_prop_schema;
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CREATE VIEW prop_view_6 AS
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SELECT vt1.id, vt4.val_1 FROM view_table_1 AS vt1
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INNER JOIN view_prop_schema_inner.view_table_4 AS vt4 ON vt1.id = vt4.id;
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WARNING: "view prop_view_6" has dependency to "table view_prop_schema_inner.view_table_4" that is not in Citus' metadata
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DETAIL: "view prop_view_6" will be created only locally
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HINT: Distribute "table view_prop_schema_inner.view_table_4" first to distribute "view prop_view_6"
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SELECT create_distributed_table('view_prop_schema_inner.view_table_4','id');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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CREATE OR REPLACE VIEW prop_view_6 AS
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SELECT vt1.id, vt4.val_1 FROM view_table_1 AS vt1
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INNER JOIN view_prop_schema_inner.view_table_4 AS vt4 ON vt1.id = vt4.id;
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-- Show that all views are propagated as distributed object
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SELECT * FROM (SELECT pg_identify_object_as_address(classid, objid, objsubid) as obj_identifier from pg_catalog.pg_dist_object) as obj_identifiers where obj_identifier::text like '%prop_view_%' ORDER BY 1;
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obj_identifier
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---------------------------------------------------------------------
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(view,"{view_prop_schema,prop_view_1}",{})
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(view,"{view_prop_schema,prop_view_2}",{})
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(view,"{view_prop_schema,prop_view_3}",{})
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(view,"{view_prop_schema,prop_view_4}",{})
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(view,"{view_prop_schema,prop_view_5}",{})
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(view,"{view_prop_schema,prop_view_6}",{})
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(view,"{view_prop_schema,prop_view_basic}",{})
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(7 rows)
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-- Check creating views depending various kind of objects
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-- Tests will also check propagating dependent objects
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-- Depending on function
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SET citus.enable_ddl_propagation TO OFF;
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CREATE OR REPLACE FUNCTION func_1_for_view(param_1 int)
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RETURNS int
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LANGUAGE plpgsql AS
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$$
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BEGIN
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return param_1;
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END;
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$$;
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RESET citus.enable_ddl_propagation;
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-- Show that function will be propagated together with the view
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SELECT * FROM (SELECT pg_identify_object_as_address(classid, objid, objsubid) as obj_identifier from pg_catalog.pg_dist_object) as obj_identifiers where obj_identifier::text like '%func_1_for_view%';
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obj_identifier
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---------------------------------------------------------------------
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(0 rows)
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CREATE VIEW prop_view_7 AS SELECT func_1_for_view(id) FROM view_table_1;
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SELECT * FROM (SELECT pg_identify_object_as_address(classid, objid, objsubid) as obj_identifier from pg_catalog.pg_dist_object) as obj_identifiers where obj_identifier::text like '%func_1_for_view%';
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obj_identifier
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---------------------------------------------------------------------
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(function,"{view_prop_schema,func_1_for_view}",{integer})
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(1 row)
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SELECT * FROM (SELECT pg_identify_object_as_address(classid, objid, objsubid) as obj_identifier from pg_catalog.pg_dist_object) as obj_identifiers where obj_identifier::text like '%prop_view_7%';
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obj_identifier
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---------------------------------------------------------------------
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(view,"{view_prop_schema,prop_view_7}",{})
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(1 row)
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-- Depending on type
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SET citus.enable_ddl_propagation TO OFF;
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CREATE TYPE type_for_view_prop AS ENUM ('a','b','c');
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RESET citus.enable_ddl_propagation;
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-- Show that type will be propagated together with the view
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SELECT * FROM (SELECT pg_identify_object_as_address(classid, objid, objsubid) as obj_identifier from pg_catalog.pg_dist_object) as obj_identifiers where obj_identifier::text like '%type_for_view_prop%';
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obj_identifier
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---------------------------------------------------------------------
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(0 rows)
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CREATE VIEW prop_view_8 AS SELECT val_1::type_for_view_prop FROM view_table_1;
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SELECT * FROM (SELECT pg_identify_object_as_address(classid, objid, objsubid) as obj_identifier from pg_catalog.pg_dist_object) as obj_identifiers where obj_identifier::text like '%type_for_view_prop%';
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obj_identifier
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---------------------------------------------------------------------
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(type,{view_prop_schema.type_for_view_prop},{})
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(1 row)
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SELECT * FROM (SELECT pg_identify_object_as_address(classid, objid, objsubid) as obj_identifier from pg_catalog.pg_dist_object) as obj_identifiers where obj_identifier::text like '%prop_view_8%';
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obj_identifier
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---------------------------------------------------------------------
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(view,"{view_prop_schema,prop_view_8}",{})
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(1 row)
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-- Depending on another view
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CREATE TABLE view_table_5(id int);
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CREATE VIEW prop_view_9 AS SELECT * FROM view_table_5;
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WARNING: "view prop_view_9" has dependency to "table view_table_5" that is not in Citus' metadata
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DETAIL: "view prop_view_9" will be created only locally
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HINT: Distribute "table view_table_5" first to distribute "view prop_view_9"
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CREATE VIEW prop_view_10 AS SELECT * FROM prop_view_9;
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WARNING: "view prop_view_10" has dependency to "table view_table_5" that is not in Citus' metadata
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DETAIL: "view prop_view_10" will be created only locally
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HINT: Distribute "table view_table_5" first to distribute "view prop_view_10"
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SELECT * FROM (SELECT pg_identify_object_as_address(classid, objid, objsubid) as obj_identifier from pg_catalog.pg_dist_object) as obj_identifiers where obj_identifier::text like '%prop_view_9%';
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obj_identifier
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---------------------------------------------------------------------
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(0 rows)
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SELECT * FROM (SELECT pg_identify_object_as_address(classid, objid, objsubid) as obj_identifier from pg_catalog.pg_dist_object) as obj_identifiers where obj_identifier::text like '%prop_view_10%';
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obj_identifier
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---------------------------------------------------------------------
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(0 rows)
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SELECT create_distributed_table('view_table_5', 'id');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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CREATE OR REPLACE VIEW prop_view_10 AS SELECT * FROM prop_view_9;
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SELECT * FROM (SELECT pg_identify_object_as_address(classid, objid, objsubid) as obj_identifier from pg_catalog.pg_dist_object) as obj_identifiers where obj_identifier::text like '%prop_view_9%';
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obj_identifier
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---------------------------------------------------------------------
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(view,"{view_prop_schema,prop_view_9}",{})
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(1 row)
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SELECT * FROM (SELECT pg_identify_object_as_address(classid, objid, objsubid) as obj_identifier from pg_catalog.pg_dist_object) as obj_identifiers where obj_identifier::text like '%prop_view_10%';
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obj_identifier
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---------------------------------------------------------------------
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(view,"{view_prop_schema,prop_view_10}",{})
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(1 row)
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-- Check views owned by non-superuser
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SET client_min_messages TO ERROR;
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CREATE USER view_creation_user;
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SELECT 1 FROM run_command_on_workers($$CREATE USER view_creation_user;$$);
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?column?
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---------------------------------------------------------------------
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1
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1
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(2 rows)
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GRANT ALL PRIVILEGES ON SCHEMA view_prop_schema to view_creation_user;
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SET ROLE view_creation_user;
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CREATE TABLE user_owned_table_for_view(id int);
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SELECT create_distributed_table('user_owned_table_for_view','id');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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CREATE VIEW view_owned_by_user AS SELECT * FROM user_owned_table_for_view;
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SELECT * FROM (SELECT pg_identify_object_as_address(classid, objid, objsubid) as obj_identifier from pg_catalog.pg_dist_object) as obj_identifiers where obj_identifier::text like '%view_owned_by_user%';
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obj_identifier
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---------------------------------------------------------------------
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(view,"{view_prop_schema,view_owned_by_user}",{})
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(1 row)
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DROP VIEW view_owned_by_user;
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SELECT * FROM (SELECT pg_identify_object_as_address(classid, objid, objsubid) as obj_identifier from pg_catalog.pg_dist_object) as obj_identifiers where obj_identifier::text like '%view_owned_by_user%';
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obj_identifier
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---------------------------------------------------------------------
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(0 rows)
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DROP TABLE user_owned_table_for_view;
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RESET ROLE;
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RESET client_min_messages;
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-- Create view with different options
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CREATE TABLE view_table_6(id int, val_1 text);
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SELECT create_distributed_table('view_table_6','id');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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-- TEMP VIEW is not supported. View will be created locally.
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CREATE TEMP VIEW temp_prop_view AS SELECT * FROM view_table_6;
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WARNING: "view temp_prop_view" has dependency on unsupported object "schema pg_temp_xxx"
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DETAIL: "view temp_prop_view" will be created only locally
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-- Recursive views are supported
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CREATE RECURSIVE VIEW nums_1_100_prop_view (n) AS
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VALUES (1)
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UNION ALL
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SELECT n+1 FROM nums_1_100_prop_view WHERE n < 100;
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SELECT * FROM (SELECT pg_identify_object_as_address(classid, objid, objsubid) as obj_identifier from pg_catalog.pg_dist_object) as obj_identifiers where obj_identifier::text like '%nums_1_100_prop_view%';
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obj_identifier
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---------------------------------------------------------------------
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(view,"{view_prop_schema,nums_1_100_prop_view}",{})
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(1 row)
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-- Sequences are supported as dependency
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CREATE SEQUENCE sequence_to_prop;
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CREATE VIEW seq_view_prop AS SELECT sequence_to_prop.is_called FROM sequence_to_prop;
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SELECT * FROM (SELECT pg_identify_object_as_address(classid, objid, objsubid) as obj_identifier from pg_catalog.pg_dist_object) as obj_identifiers where obj_identifier::text like '%sequence_to_prop%';
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obj_identifier
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---------------------------------------------------------------------
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(sequence,"{view_prop_schema,sequence_to_prop}",{})
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(1 row)
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SELECT * FROM (SELECT pg_identify_object_as_address(classid, objid, objsubid) as obj_identifier from pg_catalog.pg_dist_object) as obj_identifiers where obj_identifier::text like '%seq_view_prop%';
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obj_identifier
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---------------------------------------------------------------------
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(view,"{view_prop_schema,seq_view_prop}",{})
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(1 row)
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-- Views depend on temp sequences will be created locally
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CREATE TEMPORARY SEQUENCE temp_sequence_to_drop;
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CREATE VIEW temp_seq_view_prop AS SELECT temp_sequence_to_drop.is_called FROM temp_sequence_to_drop;
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NOTICE: view "temp_seq_view_prop" will be a temporary view
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WARNING: "view temp_seq_view_prop" has dependency on unsupported object "schema pg_temp_xxx"
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DETAIL: "view temp_seq_view_prop" will be created only locally
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-- Check circular dependencies are detected
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CREATE VIEW circular_view_1 AS SELECT * FROM view_table_6;
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CREATE VIEW circular_view_2 AS SELECT * FROM view_table_6;
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CREATE OR REPLACE VIEW circular_view_1 AS SELECT view_table_6.* FROM view_table_6 JOIN circular_view_2 USING (id);
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CREATE OR REPLACE VIEW circular_view_2 AS SELECT view_table_6.* FROM view_table_6 JOIN circular_view_1 USING (id);
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ERROR: Citus can not handle circular dependencies between distributed objects
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DETAIL: "view circular_view_2" circularly depends itself, resolve circular dependency first
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-- Recursive views with distributed tables included
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CREATE TABLE employees (employee_id int, manager_id int, full_name text);
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SELECT create_distributed_table('employees', 'employee_id');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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CREATE OR REPLACE RECURSIVE VIEW reporting_line (employee_id, subordinates) AS
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SELECT
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employee_id,
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full_name AS subordinates
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FROM
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employees
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WHERE
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manager_id IS NULL
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UNION ALL
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SELECT
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e.employee_id,
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(
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rl.subordinates || ' > ' || e.full_name
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) AS subordinates
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FROM
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employees e
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INNER JOIN reporting_line rl ON e.manager_id = rl.employee_id;
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-- Aliases are supported
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CREATE VIEW aliased_opt_prop_view(alias_1, alias_2) AS SELECT * FROM view_table_6;
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-- View options are supported
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CREATE VIEW opt_prop_view
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WITH(check_option=CASCADED, security_barrier=true)
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AS SELECT * FROM view_table_6;
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CREATE VIEW sep_opt_prop_view
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AS SELECT * FROM view_table_6
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WITH LOCAL CHECK OPTION;
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SELECT * FROM (SELECT pg_identify_object_as_address(classid, objid, objsubid) as obj_identifier from pg_catalog.pg_dist_object) as obj_identifiers where obj_identifier::text like '%opt_prop_view%' ORDER BY 1;
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obj_identifier
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---------------------------------------------------------------------
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(view,"{view_prop_schema,aliased_opt_prop_view}",{})
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(view,"{view_prop_schema,opt_prop_view}",{})
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(view,"{view_prop_schema,sep_opt_prop_view}",{})
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(3 rows)
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-- Check definitions and reltoptions of views are correct on workers
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\c - - - :worker_1_port
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SELECT definition FROM pg_views WHERE viewname = 'aliased_opt_prop_view';
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definition
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---------------------------------------------------------------------
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SELECT view_table_6.id AS alias_1, +
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view_table_6.val_1 AS alias_2 +
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FROM view_prop_schema.view_table_6;
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(1 row)
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SELECT definition FROM pg_views WHERE viewname = 'opt_prop_view';
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definition
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---------------------------------------------------------------------
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SELECT view_table_6.id, +
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view_table_6.val_1 +
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FROM view_prop_schema.view_table_6;
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(1 row)
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SELECT definition FROM pg_views WHERE viewname = 'sep_opt_prop_view';
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definition
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---------------------------------------------------------------------
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SELECT view_table_6.id, +
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view_table_6.val_1 +
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FROM view_prop_schema.view_table_6;
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(1 row)
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SELECT relname, reloptions
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FROM pg_class
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WHERE
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oid = 'view_prop_schema.aliased_opt_prop_view'::regclass::oid OR
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oid = 'view_prop_schema.opt_prop_view'::regclass::oid OR
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oid = 'view_prop_schema.sep_opt_prop_view'::regclass::oid
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ORDER BY 1;
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relname | reloptions
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---------------------------------------------------------------------
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aliased_opt_prop_view |
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opt_prop_view | {check_option=cascaded,security_barrier=true}
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sep_opt_prop_view | {check_option=local}
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(3 rows)
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\c - - - :master_port
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SET search_path to view_prop_schema;
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-- Sync metadata to check it works properly after adding a view
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SELECT start_metadata_sync_to_node('localhost', :worker_1_port);
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start_metadata_sync_to_node
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---------------------------------------------------------------------
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(1 row)
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-- Drop views and check metadata afterwards
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DROP VIEW prop_view_9 CASCADE;
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NOTICE: drop cascades to view prop_view_10
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DROP VIEW opt_prop_view, aliased_opt_prop_view, view_prop_schema_inner.inner_view_prop, sep_opt_prop_view;
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SELECT * FROM (SELECT pg_identify_object_as_address(classid, objid, objsubid) as obj_identifier from pg_catalog.pg_dist_object) as obj_identifiers where obj_identifier::text like '%inner_view_prop%';
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obj_identifier
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---------------------------------------------------------------------
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(0 rows)
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SELECT * FROM (SELECT pg_identify_object_as_address(classid, objid, objsubid) as obj_identifier from pg_catalog.pg_dist_object) as obj_identifiers where obj_identifier::text like '%opt_prop_view%';
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obj_identifier
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---------------------------------------------------------------------
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(0 rows)
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-- Drop a column that view depends on
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ALTER TABLE view_table_1 DROP COLUMN val_1 CASCADE;
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NOTICE: drop cascades to 3 other objects
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DETAIL: drop cascades to view prop_view_1
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drop cascades to view prop_view_3
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drop cascades to view prop_view_8
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-- Since prop_view_3 depends on the view_table_1's val_1 column, it should be dropped
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SELECT * FROM (SELECT pg_identify_object_as_address(classid, objid, objsubid) as obj_identifier from pg_catalog.pg_dist_object) as obj_identifiers where obj_identifier::text like '%prop_view_3%';
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obj_identifier
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---------------------------------------------------------------------
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(0 rows)
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-- Drop a table that view depends on
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DROP TABLE view_table_2 CASCADE;
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NOTICE: drop cascades to 2 other objects
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DETAIL: drop cascades to view prop_view_2
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drop cascades to constraint f_key_for_local_table on table view_table_3
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NOTICE: drop cascades to constraint f_key_for_local_table_1410200 on table view_prop_schema.view_table_3_1410200
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CONTEXT: SQL statement "SELECT citus_drop_all_shards(v_obj.objid, v_obj.schema_name, v_obj.object_name, drop_shards_metadata_only := false)"
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PL/pgSQL function citus_drop_trigger() line XX at PERFORM
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NOTICE: removing table view_prop_schema.view_table_3 from metadata as it is not connected to any reference tables via foreign keys
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-- Since prop_view_2 depends on the view_table_2, it should be dropped
|
|
SELECT * FROM (SELECT pg_identify_object_as_address(classid, objid, objsubid) as obj_identifier from pg_catalog.pg_dist_object) as obj_identifiers where obj_identifier::text like '%prop_view_2%';
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obj_identifier
|
|
---------------------------------------------------------------------
|
|
(0 rows)
|
|
|
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-- Show that unsupported CREATE OR REPLACE VIEW commands are catched by PG on the coordinator
|
|
CREATE TABLE table_to_test_unsup_view(id int, val1 text);
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SELECT create_distributed_table('table_to_test_unsup_view', 'id');
|
|
create_distributed_table
|
|
---------------------------------------------------------------------
|
|
|
|
(1 row)
|
|
|
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CREATE VIEW view_for_unsup_commands AS SELECT * FROM table_to_test_unsup_view;
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CREATE OR REPLACE VIEW view_for_unsup_commands(a,b) AS SELECT * FROM table_to_test_unsup_view;
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ERROR: cannot change name of view column "id" to "a"
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HINT: Use ALTER VIEW ... RENAME COLUMN ... to change name of view column instead.
|
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CREATE OR REPLACE VIEW view_for_unsup_commands AS SELECT id FROM table_to_test_unsup_view;
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ERROR: cannot drop columns from view
|
|
SET client_min_messages TO ERROR;
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|
DROP SCHEMA view_prop_schema_inner CASCADE;
|
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DROP SCHEMA view_prop_schema CASCADE;
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