mirror of https://github.com/citusdata/citus.git
157 lines
9.0 KiB
Plaintext
157 lines
9.0 KiB
Plaintext
-- ===================================================================
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-- create test functions
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-- ===================================================================
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CREATE FUNCTION table_ddl_command_array(regclass)
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RETURNS text[]
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AS 'citus'
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LANGUAGE C STRICT;
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-- ===================================================================
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-- test ddl command generation functionality
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-- ===================================================================
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-- first make sure a simple table works
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CREATE TABLE simple_table (
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first_name text,
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last_name text,
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id bigint
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);
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SELECT table_ddl_command_array('simple_table');
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table_ddl_command_array
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----------------------------------------------------------------------------
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{"CREATE TABLE simple_table (first_name text, last_name text, id bigint)"}
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(1 row)
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-- ensure not-null constraints are propagated
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CREATE TABLE not_null_table (
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city text,
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id bigint not null
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);
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SELECT table_ddl_command_array('not_null_table');
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table_ddl_command_array
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-----------------------------------------------------------------
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{"CREATE TABLE not_null_table (city text, id bigint NOT NULL)"}
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(1 row)
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-- ensure tables not in search path are schema-prefixed
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CREATE SCHEMA not_in_path CREATE TABLE simple_table (id bigint);
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NOTICE: Citus partially supports CREATE SCHEMA for distributed databases
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DETAIL: schema usage in joins and in some UDFs provided by Citus are not supported yet
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SELECT table_ddl_command_array('not_in_path.simple_table');
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table_ddl_command_array
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-------------------------------------------------------------------------------------------------
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{"CREATE SCHEMA IF NOT EXISTS not_in_path","CREATE TABLE not_in_path.simple_table (id bigint)"}
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(1 row)
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-- even more complex constraints should be preserved...
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CREATE TABLE column_constraint_table (
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first_name text,
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last_name text,
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age int CONSTRAINT non_negative_age CHECK (age >= 0)
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);
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SELECT table_ddl_command_array('column_constraint_table');
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table_ddl_command_array
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---------------------------------------------------------------------------------------------------------------------------------------
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{"CREATE TABLE column_constraint_table (first_name text, last_name text, age integer, CONSTRAINT non_negative_age CHECK (age >= 0))"}
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(1 row)
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-- including table constraints
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CREATE TABLE table_constraint_table (
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bid_item_id bigint,
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min_bid decimal not null,
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max_bid decimal not null,
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CONSTRAINT bids_ordered CHECK (min_bid > max_bid)
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);
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SELECT table_ddl_command_array('table_constraint_table');
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table_ddl_command_array
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---------------------------------------------------------------------------------------------------------------------------------------------------------------------
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{"CREATE TABLE table_constraint_table (bid_item_id bigint, min_bid numeric NOT NULL, max_bid numeric NOT NULL, CONSTRAINT bids_ordered CHECK (min_bid > max_bid))"}
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(1 row)
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-- default values are supported
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CREATE TABLE default_value_table (
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name text,
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price decimal default 0.00
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);
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SELECT table_ddl_command_array('default_value_table');
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table_ddl_command_array
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------------------------------------------------------------------------------
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{"CREATE TABLE default_value_table (name text, price numeric DEFAULT 0.00)"}
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(1 row)
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-- of course primary keys work...
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CREATE TABLE pkey_table (
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first_name text,
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last_name text,
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id bigint PRIMARY KEY
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);
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SELECT table_ddl_command_array('pkey_table');
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table_ddl_command_array
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-----------------------------------------------------------------------------------------------------------------------------------------------------------------
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{"CREATE TABLE pkey_table (first_name text, last_name text, id bigint NOT NULL)","ALTER TABLE ONLY pkey_table ADD CONSTRAINT pkey_table_pkey PRIMARY KEY (id)"}
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(1 row)
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-- as do unique indexes...
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CREATE TABLE unique_table (
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user_id bigint not null,
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username text UNIQUE not null
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);
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SELECT table_ddl_command_array('unique_table');
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table_ddl_command_array
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----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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{"CREATE TABLE unique_table (user_id bigint NOT NULL, username text NOT NULL)","ALTER TABLE ONLY unique_table ADD CONSTRAINT unique_table_username_key UNIQUE (username)"}
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(1 row)
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-- and indexes used for clustering
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CREATE TABLE clustered_table (
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data json not null,
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received_at timestamp not null
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);
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CREATE INDEX clustered_time_idx ON clustered_table (received_at);
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CLUSTER clustered_table USING clustered_time_idx;
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SELECT table_ddl_command_array('clustered_table');
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table_ddl_command_array
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----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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{"CREATE TABLE clustered_table (data json NOT NULL, received_at timestamp without time zone NOT NULL)","CREATE INDEX clustered_time_idx ON clustered_table USING btree (received_at)","ALTER TABLE clustered_table CLUSTER ON clustered_time_idx"}
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(1 row)
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-- fiddly things like storage type and statistics also work
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CREATE TABLE fiddly_table (
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hostname char(255) not null,
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os char(255) not null,
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ip_addr inet not null,
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traceroute text not null
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);
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ALTER TABLE fiddly_table
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ALTER hostname SET STORAGE PLAIN,
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ALTER os SET STORAGE MAIN,
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ALTER ip_addr SET STORAGE EXTENDED,
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ALTER traceroute SET STORAGE EXTERNAL,
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ALTER ip_addr SET STATISTICS 500;
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SELECT table_ddl_command_array('fiddly_table');
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table_ddl_command_array
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-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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{"CREATE TABLE fiddly_table (hostname character(255) NOT NULL, os character(255) NOT NULL, ip_addr inet NOT NULL, traceroute text NOT NULL)","ALTER TABLE ONLY fiddly_table ALTER COLUMN hostname SET STORAGE PLAIN, ALTER COLUMN os SET STORAGE MAIN, ALTER COLUMN ip_addr SET STORAGE EXTENDED, ALTER COLUMN ip_addr SET STATISTICS 500, ALTER COLUMN traceroute SET STORAGE EXTERNAL"}
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(1 row)
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-- test foreign tables using fake FDW
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CREATE FOREIGN TABLE foreign_table (
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id bigint not null,
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full_name text not null default ''
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) SERVER fake_fdw_server OPTIONS (encoding 'utf-8', compression 'true');
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SELECT table_ddl_command_array('foreign_table');
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NOTICE: foreign-data wrapper "fake_fdw" does not have an extension defined
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table_ddl_command_array
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-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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{"CREATE SERVER fake_fdw_server FOREIGN DATA WRAPPER fake_fdw","CREATE FOREIGN TABLE foreign_table (id bigint NOT NULL, full_name text DEFAULT ''::text NOT NULL) SERVER fake_fdw_server OPTIONS (encoding 'utf-8', compression 'true')"}
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(1 row)
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-- propagating views is not supported
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CREATE VIEW local_view AS SELECT * FROM simple_table;
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SELECT table_ddl_command_array('local_view');
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ERROR: local_view is not a regular or foreign table
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-- clean up
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DROP VIEW IF EXISTS local_view;
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DROP FOREIGN TABLE IF EXISTS foreign_table;
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DROP TABLE IF EXISTS simple_table, not_null_table, column_constraint_table,
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table_constraint_table, default_value_table, pkey_table,
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unique_table, clustered_table, fiddly_table;
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