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As with NOT NULL constraints, we consider that such constraints are merely reports of constraints that are being enforced by the remote server (or other underlying storage mechanism). Their only real use is to allow planner optimizations, for example in constraint-exclusion checks. Thus, the code changes here amount to little more than removal of the error that was formerly thrown for applying CHECK to a foreign table. (In passing, do a bit of cleanup of the ALTER FOREIGN TABLE reference page, which had accumulated some weird decisions about ordering etc.) Shigeru Hanada and Etsuro Fujita, reviewed by Kyotaro Horiguchi and Ashutosh Bapat.
175 lines
7.2 KiB
Plaintext
175 lines
7.2 KiB
Plaintext
--
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-- Test foreign-data wrapper file_fdw.
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--
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-- Clean up in case a prior regression run failed
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SET client_min_messages TO 'error';
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DROP ROLE IF EXISTS file_fdw_superuser, file_fdw_user, no_priv_user;
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RESET client_min_messages;
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CREATE ROLE file_fdw_superuser LOGIN SUPERUSER; -- is a superuser
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CREATE ROLE file_fdw_user LOGIN; -- has priv and user mapping
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CREATE ROLE no_priv_user LOGIN; -- has priv but no user mapping
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-- Install file_fdw
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CREATE EXTENSION file_fdw;
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-- file_fdw_superuser owns fdw-related objects
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SET ROLE file_fdw_superuser;
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CREATE SERVER file_server FOREIGN DATA WRAPPER file_fdw;
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-- privilege tests
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SET ROLE file_fdw_user;
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CREATE FOREIGN DATA WRAPPER file_fdw2 HANDLER file_fdw_handler VALIDATOR file_fdw_validator; -- ERROR
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CREATE SERVER file_server2 FOREIGN DATA WRAPPER file_fdw; -- ERROR
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CREATE USER MAPPING FOR file_fdw_user SERVER file_server; -- ERROR
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SET ROLE file_fdw_superuser;
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GRANT USAGE ON FOREIGN SERVER file_server TO file_fdw_user;
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SET ROLE file_fdw_user;
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CREATE USER MAPPING FOR file_fdw_user SERVER file_server;
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-- create user mappings and grant privilege to test users
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SET ROLE file_fdw_superuser;
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CREATE USER MAPPING FOR file_fdw_superuser SERVER file_server;
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CREATE USER MAPPING FOR no_priv_user SERVER file_server;
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-- validator tests
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CREATE FOREIGN TABLE tbl () SERVER file_server OPTIONS (format 'xml'); -- ERROR
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CREATE FOREIGN TABLE tbl () SERVER file_server OPTIONS (format 'text', header 'true'); -- ERROR
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CREATE FOREIGN TABLE tbl () SERVER file_server OPTIONS (format 'text', quote ':'); -- ERROR
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CREATE FOREIGN TABLE tbl () SERVER file_server OPTIONS (format 'text', escape ':'); -- ERROR
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CREATE FOREIGN TABLE tbl () SERVER file_server OPTIONS (format 'binary', header 'true'); -- ERROR
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CREATE FOREIGN TABLE tbl () SERVER file_server OPTIONS (format 'binary', quote ':'); -- ERROR
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CREATE FOREIGN TABLE tbl () SERVER file_server OPTIONS (format 'binary', escape ':'); -- ERROR
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CREATE FOREIGN TABLE tbl () SERVER file_server OPTIONS (format 'text', delimiter 'a'); -- ERROR
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CREATE FOREIGN TABLE tbl () SERVER file_server OPTIONS (format 'text', escape '-'); -- ERROR
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CREATE FOREIGN TABLE tbl () SERVER file_server OPTIONS (format 'csv', quote '-', null '=-='); -- ERROR
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CREATE FOREIGN TABLE tbl () SERVER file_server OPTIONS (format 'csv', delimiter '-', null '=-='); -- ERROR
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CREATE FOREIGN TABLE tbl () SERVER file_server OPTIONS (format 'csv', delimiter '-', quote '-'); -- ERROR
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CREATE FOREIGN TABLE tbl () SERVER file_server OPTIONS (format 'csv', delimiter '---'); -- ERROR
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CREATE FOREIGN TABLE tbl () SERVER file_server OPTIONS (format 'csv', quote '---'); -- ERROR
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CREATE FOREIGN TABLE tbl () SERVER file_server OPTIONS (format 'csv', escape '---'); -- ERROR
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CREATE FOREIGN TABLE tbl () SERVER file_server OPTIONS (format 'text', delimiter '\'); -- ERROR
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CREATE FOREIGN TABLE tbl () SERVER file_server OPTIONS (format 'text', delimiter '.'); -- ERROR
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CREATE FOREIGN TABLE tbl () SERVER file_server OPTIONS (format 'text', delimiter '1'); -- ERROR
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CREATE FOREIGN TABLE tbl () SERVER file_server OPTIONS (format 'text', delimiter 'a'); -- ERROR
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CREATE FOREIGN TABLE tbl () SERVER file_server OPTIONS (format 'csv', delimiter '
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'); -- ERROR
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CREATE FOREIGN TABLE tbl () SERVER file_server OPTIONS (format 'csv', null '
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'); -- ERROR
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CREATE FOREIGN TABLE tbl () SERVER file_server; -- ERROR
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CREATE FOREIGN TABLE agg_text (
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a int2 CHECK (a >= 0),
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b float4
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) SERVER file_server
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OPTIONS (format 'text', filename '@abs_srcdir@/data/agg.data', delimiter ' ', null '\N');
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GRANT SELECT ON agg_text TO file_fdw_user;
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CREATE FOREIGN TABLE agg_csv (
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a int2,
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b float4
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) SERVER file_server
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OPTIONS (format 'csv', filename '@abs_srcdir@/data/agg.csv', header 'true', delimiter ';', quote '@', escape '"', null '');
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ALTER FOREIGN TABLE agg_csv ADD CHECK (a >= 0);
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CREATE FOREIGN TABLE agg_bad (
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a int2,
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b float4
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) SERVER file_server
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OPTIONS (format 'csv', filename '@abs_srcdir@/data/agg.bad', header 'true', delimiter ';', quote '@', escape '"', null '');
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ALTER FOREIGN TABLE agg_bad ADD CHECK (a >= 0);
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-- per-column options tests
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CREATE FOREIGN TABLE text_csv (
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word1 text OPTIONS (force_not_null 'true'),
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word2 text OPTIONS (force_not_null 'off'),
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word3 text OPTIONS (force_null 'true'),
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word4 text OPTIONS (force_null 'off')
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) SERVER file_server
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OPTIONS (format 'text', filename '@abs_srcdir@/data/text.csv', null 'NULL');
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SELECT * FROM text_csv; -- ERROR
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ALTER FOREIGN TABLE text_csv OPTIONS (SET format 'csv');
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\pset null _null_
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SELECT * FROM text_csv;
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-- force_not_null and force_null can be used together on the same column
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ALTER FOREIGN TABLE text_csv ALTER COLUMN word1 OPTIONS (force_null 'true');
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ALTER FOREIGN TABLE text_csv ALTER COLUMN word3 OPTIONS (force_not_null 'true');
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-- force_not_null is not allowed to be specified at any foreign object level:
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ALTER FOREIGN DATA WRAPPER file_fdw OPTIONS (ADD force_not_null '*'); -- ERROR
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ALTER SERVER file_server OPTIONS (ADD force_not_null '*'); -- ERROR
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CREATE USER MAPPING FOR public SERVER file_server OPTIONS (force_not_null '*'); -- ERROR
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CREATE FOREIGN TABLE tbl () SERVER file_server OPTIONS (force_not_null '*'); -- ERROR
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-- force_null is not allowed to be specified at any foreign object level:
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ALTER FOREIGN DATA WRAPPER file_fdw OPTIONS (ADD force_null '*'); -- ERROR
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ALTER SERVER file_server OPTIONS (ADD force_null '*'); -- ERROR
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CREATE USER MAPPING FOR public SERVER file_server OPTIONS (force_null '*'); -- ERROR
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CREATE FOREIGN TABLE tbl () SERVER file_server OPTIONS (force_null '*'); -- ERROR
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-- basic query tests
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SELECT * FROM agg_text WHERE b > 10.0 ORDER BY a;
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SELECT * FROM agg_csv ORDER BY a;
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SELECT * FROM agg_csv c JOIN agg_text t ON (t.a = c.a) ORDER BY c.a;
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-- error context report tests
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SELECT * FROM agg_bad; -- ERROR
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-- misc query tests
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\t on
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EXPLAIN (VERBOSE, COSTS FALSE) SELECT * FROM agg_csv;
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\t off
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PREPARE st(int) AS SELECT * FROM agg_csv WHERE a = $1;
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EXECUTE st(100);
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EXECUTE st(100);
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DEALLOCATE st;
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-- tableoid
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SELECT tableoid::regclass, b FROM agg_csv;
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-- updates aren't supported
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INSERT INTO agg_csv VALUES(1,2.0);
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UPDATE agg_csv SET a = 1;
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DELETE FROM agg_csv WHERE a = 100;
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-- but this should be ignored
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SELECT * FROM agg_csv FOR UPDATE;
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-- constraint exclusion tests
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\t on
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EXPLAIN (VERBOSE, COSTS FALSE) SELECT * FROM agg_csv WHERE a < 0;
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\t off
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SELECT * FROM agg_csv WHERE a < 0;
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SET constraint_exclusion = 'on';
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\t on
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EXPLAIN (VERBOSE, COSTS FALSE) SELECT * FROM agg_csv WHERE a < 0;
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\t off
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SELECT * FROM agg_csv WHERE a < 0;
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RESET constraint_exclusion;
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-- privilege tests
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SET ROLE file_fdw_superuser;
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SELECT * FROM agg_text ORDER BY a;
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SET ROLE file_fdw_user;
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SELECT * FROM agg_text ORDER BY a;
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SET ROLE no_priv_user;
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SELECT * FROM agg_text ORDER BY a; -- ERROR
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SET ROLE file_fdw_user;
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\t on
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EXPLAIN (VERBOSE, COSTS FALSE) SELECT * FROM agg_text WHERE a > 0;
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\t off
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-- privilege tests for object
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SET ROLE file_fdw_superuser;
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ALTER FOREIGN TABLE agg_text OWNER TO file_fdw_user;
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ALTER FOREIGN TABLE agg_text OPTIONS (SET format 'text');
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SET ROLE file_fdw_user;
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ALTER FOREIGN TABLE agg_text OPTIONS (SET format 'text');
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SET ROLE file_fdw_superuser;
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-- cleanup
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RESET ROLE;
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DROP EXTENSION file_fdw CASCADE;
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DROP ROLE file_fdw_superuser, file_fdw_user, no_priv_user;
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