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sqlite/test/view.test
drh 706631de32 When computing the datatypes for columns in a view, use the same datatype name 
as the underlying table if such is available and is consistent with
the computed affinity of the column.
[forum:/forumpost/7fb1fe9dcf310ef5|Forum thread 7fb1fe9dcf310ef5].

FossilOrigin-Name: 497a98363fd1ed079544620ec5d0883f987ed03013131542741c93d7568e8568
2023-01-10 19:57:26 +00:00

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# 2002 February 26
#
# The author disclaims copyright to this source code. In place of
# a legal notice, here is a blessing:
#
# May you do good and not evil.
# May you find forgiveness for yourself and forgive others.
# May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library. The
# focus of this file is testing VIEW statements.
#
# $Id: view.test,v 1.39 2008/12/14 14:45:21 danielk1977 Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
# Omit this entire file if the library is not configured with views enabled.
ifcapable !view {
finish_test
return
}
do_test view-1.0 {
execsql {
CREATE TABLE t1(a,b,c);
INSERT INTO t1 VALUES(1,2,3);
INSERT INTO t1 VALUES(4,5,6);
INSERT INTO t1 VALUES(7,8,9);
SELECT * FROM t1;
}
} {1 2 3 4 5 6 7 8 9}
do_test view-1.1 {
execsql {
BEGIN;
CREATE VIEW IF NOT EXISTS v1 AS SELECT a,b FROM t1;
SELECT * FROM v1 ORDER BY a;
}
} {1 2 4 5 7 8}
do_test view-1.1.100 {
db config enable_view off
catchsql {
SELECT * FROM v1 ORDER BY a;
}
} {1 {access to view "v1" prohibited}}
do_execsql_test view-1.1.101 {
CREATE TEMP VIEW v1temp AS SELECT a, b FROM t1;
SELECT * FROM v1temp ORDER BY a;
} {1 2 4 5 7 8}
do_test view-1.1.110 {
db config enable_view on
catchsql {
SELECT * FROM v1 ORDER BY a;
SELECT * FROM v1temp ORDER BY a;
}
} {0 {1 2 4 5 7 8 1 2 4 5 7 8}}
ifcapable vtab {
do_execsql_test view-1.1.120 {
SELECT name, type FROM pragma_table_list('v1');
} {v1 view}
}
do_test view-1.2 {
catchsql {
ROLLBACK;
SELECT * FROM v1 ORDER BY a;
}
} {1 {no such table: v1}}
do_test view-1.3 {
execsql {
CREATE VIEW v1 AS SELECT a,b FROM t1;
SELECT * FROM v1 ORDER BY a;
}
} {1 2 4 5 7 8}
do_test view-1.3.1 {
db close
sqlite3 db test.db
execsql {
SELECT * FROM v1 ORDER BY a;
}
} {1 2 4 5 7 8}
do_test view-1.4 {
catchsql {
DROP VIEW IF EXISTS v1;
SELECT * FROM v1 ORDER BY a;
}
} {1 {no such table: v1}}
do_test view-1.5 {
execsql {
CREATE VIEW v1 AS SELECT a,b FROM t1;
SELECT * FROM v1 ORDER BY a;
}
} {1 2 4 5 7 8}
do_test view-1.6 {
catchsql {
DROP TABLE t1;
SELECT * FROM v1 ORDER BY a;
}
} {1 {no such table: main.t1}}
do_test view-1.7 {
execsql {
CREATE TABLE t1(x,a,b,c);
INSERT INTO t1 VALUES(1,2,3,4);
INSERT INTO t1 VALUES(4,5,6,7);
INSERT INTO t1 VALUES(7,8,9,10);
SELECT * FROM v1 ORDER BY a;
}
} {2 3 5 6 8 9}
do_test view-1.8 {
db close
sqlite3 db test.db
execsql {
SELECT * FROM v1 ORDER BY a;
}
} {2 3 5 6 8 9}
do_execsql_test view-1.10 {
CREATE TABLE t9(x INTEGER);
CREATE VIEW v9a AS SELECT x FROM t9;
CREATE VIEW v9b AS SELECT * FROM t9;
CREATE VIEW v9c(x) AS SELECT x FROM t9;
CREATE VIEW v9d(x) AS SELECT * FROM t9;
} {}
do_execsql_test view-1.11 {
PRAGMA table_info(v9a);
} {0 x INTEGER 0 {} 0}
do_execsql_test view-1.12 {
PRAGMA table_info(v9b);
} {0 x INTEGER 0 {} 0}
do_execsql_test view-1.13 {
PRAGMA table_info(v9c);
} {0 x INTEGER 0 {} 0}
do_execsql_test view-1.14 {
PRAGMA table_info(v9d);
} {0 x INTEGER 0 {} 0}
do_test view-2.1 {
execsql {
CREATE VIEW v2 AS SELECT * FROM t1 WHERE a>5
}; # No semicolon
execsql2 {
SELECT * FROM v2;
}
} {x 7 a 8 b 9 c 10}
do_test view-2.2 {
catchsql {
INSERT INTO v2 VALUES(1,2,3,4);
}
} {1 {cannot modify v2 because it is a view}}
do_test view-2.3 {
catchsql {
UPDATE v2 SET a=10 WHERE a=5;
}
} {1 {cannot modify v2 because it is a view}}
do_test view-2.4 {
catchsql {
DELETE FROM v2;
}
} {1 {cannot modify v2 because it is a view}}
do_test view-2.5 {
execsql {
INSERT INTO t1 VALUES(11,12,13,14);
SELECT * FROM v2 ORDER BY x;
}
} {7 8 9 10 11 12 13 14}
do_test view-2.6 {
execsql {
SELECT x FROM v2 WHERE a>10
}
} {11}
# Test that column name of views are generated correctly.
#
do_test view-3.1 {
execsql2 {
SELECT * FROM v1 LIMIT 1
}
} {a 2 b 3}
do_test view-3.2 {
execsql2 {
SELECT * FROM v2 LIMIT 1
}
} {x 7 a 8 b 9 c 10}
do_test view-3.3.1 {
execsql2 {
DROP VIEW v1;
CREATE VIEW v1 AS SELECT a AS 'xyz', b+c AS 'pqr', c-b FROM t1;
SELECT * FROM v1 LIMIT 1
}
} {xyz 2 pqr 7 c-b 1}
do_test view-3.3.2 {
execsql2 {
CREATE VIEW v1b AS SELECT t1.a, b+c, t1.c FROM t1;
SELECT * FROM v1b LIMIT 1
}
} {a 2 b+c 7 c 4}
do_test view-3.3.3 {
execsql2 {
CREATE VIEW v1c(x,y,z) AS SELECT a, b+c, c-b FROM t1;
SELECT * FROM v1c LIMIT 1;
}
} {x 2 y 7 z 1}
do_catchsql_test view-3.3.4 {
CREATE VIEW v1err(x,y DESC,z) AS SELECT a, b+c, c-b FROM t1;
} {1 {syntax error after column name "y"}}
do_catchsql_test view-3.3.5 {
DROP VIEW IF EXISTS v1err;
CREATE VIEW v1err(x,y) AS SELECT a, b+c, c-b FROM t1;
SELECT * FROM v1err;
} {1 {expected 2 columns for 'v1err' but got 3}}
do_catchsql_test view-3.3.6 {
DROP VIEW IF EXISTS v1err;
CREATE VIEW v1err(w,x,y,z) AS SELECT a, b+c, c-b FROM t1;
SELECT * FROM v1err;
} {1 {expected 4 columns for 'v1err' but got 3}}
ifcapable compound {
do_test view-3.4 {
execsql2 {
CREATE VIEW v3 AS SELECT a FROM t1 UNION SELECT b FROM t1 ORDER BY b;
SELECT * FROM v3 LIMIT 4;
}
} {a 2 a 3 a 5 a 6}
do_test view-3.5 {
execsql2 {
CREATE VIEW v4 AS
SELECT a, b FROM t1
UNION
SELECT b AS 'x', a AS 'y' FROM t1
ORDER BY x, y;
SELECT b FROM v4 ORDER BY b LIMIT 4;
}
} {b 2 b 3 b 5 b 6}
} ;# ifcapable compound
do_test view-4.1 {
catchsql {
DROP VIEW t1;
}
} {1 {use DROP TABLE to delete table t1}}
do_test view-4.2 {
execsql {
SELECT 1 FROM t1 LIMIT 1;
}
} 1
do_test view-4.3 {
catchsql {
DROP TABLE v1;
}
} {1 {use DROP VIEW to delete view v1}}
do_test view-4.4 {
execsql {
SELECT 1 FROM v1 LIMIT 1;
}
} {1}
do_test view-4.5 {
catchsql {
CREATE INDEX i1v1 ON v1(xyz);
}
} {1 {views may not be indexed}}
do_test view-5.1 {
execsql {
CREATE TABLE t2(y,a);
INSERT INTO t2 VALUES(22,2);
INSERT INTO t2 VALUES(33,3);
INSERT INTO t2 VALUES(44,4);
INSERT INTO t2 VALUES(55,5);
SELECT * FROM t2;
}
} {22 2 33 3 44 4 55 5}
do_test view-5.2 {
execsql {
CREATE VIEW v5 AS
SELECT t1.x AS v, t2.y AS w FROM t1 JOIN t2 USING(a);
SELECT * FROM v5;
}
} {1 22 4 55}
# Verify that the view v5 gets flattened. see sqliteFlattenSubquery().
# This will only work if EXPLAIN is enabled.
# Ticket #272
#
ifcapable {explain} {
do_test view-5.3 {
lsearch [execsql {
EXPLAIN SELECT * FROM v5;
}] OpenEphemeral
} {-1}
do_test view-5.4 {
execsql {
SELECT * FROM v5 AS a, t2 AS b WHERE a.w=b.y;
}
} {1 22 22 2 4 55 55 5}
do_test view-5.5 {
lsearch [execsql {
EXPLAIN SELECT * FROM v5 AS a, t2 AS b WHERE a.w=b.y;
}] OpenEphemeral
} {-1}
do_test view-5.6 {
execsql {
SELECT * FROM t2 AS b, v5 AS a WHERE a.w=b.y;
}
} {22 2 1 22 55 5 4 55}
do_test view-5.7 {
lsearch [execsql {
EXPLAIN SELECT * FROM t2 AS b, v5 AS a WHERE a.w=b.y;
}] OpenEphemeral
} {-1}
do_test view-5.8 {
execsql {
SELECT * FROM t1 AS a, v5 AS b, t2 AS c WHERE a.x=b.v AND b.w=c.y;
}
} {1 2 3 4 1 22 22 2 4 5 6 7 4 55 55 5}
do_test view-5.9 {
lsearch [execsql {
EXPLAIN SELECT * FROM t1 AS a, v5 AS b, t2 AS c WHERE a.x=b.v AND b.w=c.y;
}] OpenEphemeral
} {-1}
} ;# endif explain
do_test view-6.1 {
execsql {
SELECT min(x), min(a), min(b), min(c), min(a+b+c) FROM v2;
}
} {7 8 9 10 27}
do_test view-6.2 {
execsql {
SELECT max(x), max(a), max(b), max(c), max(a+b+c) FROM v2;
}
} {11 12 13 14 39}
do_test view-7.1 {
execsql {
CREATE TABLE test1(id integer primary key, a);
CREATE TABLE test2(id integer, b);
INSERT INTO test1 VALUES(1,2);
INSERT INTO test2 VALUES(1,3);
CREATE VIEW test AS
SELECT test1.id, a, b
FROM test1 JOIN test2 ON test2.id=test1.id;
SELECT * FROM test;
}
} {1 2 3}
do_test view-7.2 {
db close
sqlite3 db test.db
execsql {
SELECT * FROM test;
}
} {1 2 3}
do_test view-7.3 {
execsql {
DROP VIEW test;
CREATE VIEW test AS
SELECT test1.id, a, b
FROM test1 JOIN test2 USING(id);
SELECT * FROM test;
}
} {1 2 3}
do_test view-7.4 {
db close
sqlite3 db test.db
execsql {
SELECT * FROM test;
}
} {1 2 3}
do_test view-7.5 {
execsql {
DROP VIEW test;
CREATE VIEW test AS
SELECT test1.id, a, b
FROM test1 NATURAL JOIN test2;
SELECT * FROM test;
}
} {1 2 3}
do_test view-7.6 {
db close
sqlite3 db test.db
execsql {
SELECT * FROM test;
}
} {1 2 3}
do_test view-8.1 {
execsql {
CREATE VIEW v6 AS SELECT pqr, xyz FROM v1;
SELECT * FROM v6 ORDER BY xyz;
}
} {7 2 13 5 19 8 27 12}
do_test view-8.2 {
db close
sqlite3 db test.db
execsql {
SELECT * FROM v6 ORDER BY xyz;
}
} {7 2 13 5 19 8 27 12}
do_test view-8.3 {
execsql {
CREATE VIEW v7(a) AS SELECT pqr+xyz FROM v6;
SELECT * FROM v7 ORDER BY a;
}
} {9 18 27 39}
ifcapable subquery {
do_test view-8.4 {
execsql {
CREATE VIEW v8 AS SELECT max(cnt) AS mx FROM
(SELECT a%2 AS eo, count(*) AS cnt FROM t1 GROUP BY eo);
SELECT * FROM v8;
}
} 3
do_test view-8.5 {
execsql {
SELECT mx+10, mx*2 FROM v8;
}
} {13 6}
do_test view-8.6 {
execsql {
SELECT mx+10, pqr FROM v6, v8 WHERE xyz=2;
}
} {13 7}
do_test view-8.7 {
execsql {
SELECT mx+10, pqr FROM v6, v8 WHERE xyz>2;
}
} {13 13 13 19 13 27}
} ;# ifcapable subquery
# Tests for a bug found by Michiel de Wit involving ORDER BY in a VIEW.
#
do_test view-9.1 {
execsql {
INSERT INTO t2 SELECT * FROM t2 WHERE a<5;
INSERT INTO t2 SELECT * FROM t2 WHERE a<4;
INSERT INTO t2 SELECT * FROM t2 WHERE a<3;
SELECT DISTINCT count(*) FROM t2 GROUP BY a ORDER BY 1;
}
} {1 2 4 8}
do_test view-9.2 {
execsql {
SELECT DISTINCT count(*) FROM t2 GROUP BY a ORDER BY 1 LIMIT 3;
}
} {1 2 4}
do_test view-9.3 {
execsql {
CREATE VIEW v9 AS
SELECT DISTINCT count(*) FROM t2 GROUP BY a ORDER BY 1 LIMIT 3;
SELECT * FROM v9;
}
} {1 2 4}
do_test view-9.4 {
execsql {
SELECT * FROM v9 ORDER BY 1 DESC;
}
} {4 2 1}
do_test view-9.5 {
execsql {
CREATE VIEW v10 AS
SELECT DISTINCT a, count(*) FROM t2 GROUP BY a ORDER BY 2 LIMIT 3;
SELECT * FROM v10;
}
} {5 1 4 2 3 4}
do_test view-9.6 {
execsql {
SELECT * FROM v10 ORDER BY 1;
}
} {3 4 4 2 5 1}
# Tables with columns having peculiar quoted names used in views
# Ticket #756.
#
do_test view-10.1 {
execsql {
CREATE TABLE t3("9" integer, [4] text);
INSERT INTO t3 VALUES(1,2);
CREATE VIEW v_t3_a AS SELECT a.[9] FROM t3 AS a;
CREATE VIEW v_t3_b AS SELECT "4" FROM t3;
SELECT * FROM v_t3_a;
}
} {1}
do_test view-10.2 {
execsql {
SELECT * FROM v_t3_b;
}
} {2}
do_test view-11.1 {
execsql {
CREATE TABLE t4(a COLLATE NOCASE);
INSERT INTO t4 VALUES('This');
INSERT INTO t4 VALUES('this');
INSERT INTO t4 VALUES('THIS');
SELECT * FROM t4 WHERE a = 'THIS';
}
} {This this THIS}
ifcapable subquery {
do_test view-11.2 {
execsql {
SELECT * FROM (SELECT * FROM t4) WHERE a = 'THIS';
}
} {This this THIS}
}
do_test view-11.3 {
execsql {
CREATE VIEW v11 AS SELECT * FROM t4;
SELECT * FROM v11 WHERE a = 'THIS';
}
} {This this THIS}
# Ticket #1270: Do not allow parameters in view definitions.
#
do_test view-12.1 {
catchsql {
CREATE VIEW v12 AS SELECT a FROM t1 WHERE b=?
}
} {1 {parameters are not allowed in views}}
do_test view-12.2 {
catchsql {
CREATE VIEW v12(x) AS SELECT a FROM t1 WHERE b=?
}
} {1 {parameters are not allowed in views}}
ifcapable attach {
do_test view-13.1 {
forcedelete test2.db
catchsql {
ATTACH 'test2.db' AS two;
CREATE TABLE two.t2(x,y);
CREATE VIEW v13 AS SELECT y FROM two.t2;
}
} {1 {view v13 cannot reference objects in database two}}
}
# Ticket #1658
#
do_test view-14.1 {
catchsql {
CREATE TEMP VIEW t1 AS SELECT a,b FROM t1;
SELECT * FROM temp.t1;
}
} {1 {view t1 is circularly defined}}
do_test view-14.2 {
catchsql {
DROP VIEW IF EXISTS temp.t1;
CREATE TEMP VIEW t1(a,b) AS SELECT a,b FROM t1;
SELECT * FROM temp.t1;
}
} {1 {view t1 is circularly defined}}
# Tickets #1688, #1709
#
do_test view-15.1 {
execsql2 {
CREATE VIEW v15 AS SELECT a AS x, b AS y FROM t1;
SELECT * FROM v15 LIMIT 1;
}
} {x 2 y 3}
do_test view-15.2 {
execsql2 {
SELECT x, y FROM v15 LIMIT 1
}
} {x 2 y 3}
do_test view-16.1 {
catchsql {
CREATE VIEW IF NOT EXISTS v1 AS SELECT * FROM t1;
}
} {0 {}}
do_test view-16.2 {
execsql {
SELECT sql FROM sqlite_master WHERE name='v1'
}
} {{CREATE VIEW v1 AS SELECT a AS 'xyz', b+c AS 'pqr', c-b FROM t1}}
do_test view-16.3 {
catchsql {
DROP VIEW IF EXISTS nosuchview
}
} {0 {}}
# correct error message when attempting to drop a view that does not
# exist.
#
do_test view-17.1 {
catchsql {
DROP VIEW nosuchview
}
} {1 {no such view: nosuchview}}
do_test view-17.2 {
catchsql {
DROP VIEW main.nosuchview
}
} {1 {no such view: main.nosuchview}}
do_test view-18.1 {
execsql {
DROP VIEW t1;
DROP TABLE t1;
CREATE TABLE t1(a, b, c);
INSERT INTO t1 VALUES(1, 2, 3);
INSERT INTO t1 VALUES(4, 5, 6);
CREATE VIEW vv1 AS SELECT * FROM t1;
CREATE VIEW vv2 AS SELECT * FROM vv1;
CREATE VIEW vv3 AS SELECT * FROM vv2;
CREATE VIEW vv4 AS SELECT * FROM vv3;
CREATE VIEW vv5 AS SELECT * FROM vv4;
SELECT * FROM vv5;
}
} {1 2 3 4 5 6}
# Ticket #3308
# Make sure "rowid" columns in a view are named correctly.
#
do_test view-19.1 {
execsql {
CREATE VIEW v3308a AS SELECT rowid, * FROM t1;
}
execsql2 {
SELECT * FROM v3308a
}
} {rowid 1 a 1 b 2 c 3 rowid 2 a 4 b 5 c 6}
do_test view-19.2 {
execsql {
CREATE VIEW v3308b AS SELECT t1.rowid, t1.a, t1.b+t1.c FROM t1;
}
execsql2 {
SELECT * FROM v3308b
}
} {rowid 1 a 1 t1.b+t1.c 5 rowid 2 a 4 t1.b+t1.c 11}
do_test view-19.3 {
execsql {
CREATE VIEW v3308c AS SELECT t1.oid, A, t1.b+t1.c AS x FROM t1;
}
execsql2 {
SELECT * FROM v3308c
}
} {rowid 1 a 1 x 5 rowid 2 a 4 x 11}
# Ticket #3539 had this crashing (see commit [5940]).
do_test view-20.1 {
execsql {
DROP TABLE IF EXISTS t1;
DROP VIEW IF EXISTS v1;
CREATE TABLE t1(c1);
CREATE VIEW v1 AS SELECT c1 FROM (SELECT t1.c1 FROM t1);
}
} {}
db close
sqlite3 db :memory:
do_execsql_test view-22.1 {
CREATE VIEW x1 AS SELECT 123 AS '', 234 AS '', 345 AS '';
SELECT * FROM x1;
} {123 234 345}
do_test view-22.2 {
unset -nocomplain x
db eval {SELECT * FROM x1} x break
lsort [array names x]
} {{} * :1 :2}
do_test view-25.1 {
db eval {
CREATE TABLE t25 (x);
INSERT INTO t25 (x) VALUES (1);
ANALYZE;
}
proc authLogDelete {code arg1 arg2 arg3 arg4 args} {
if {$code=="SQLITE_DELETE" && [string match sqlite_stat* $arg1]} {
# lappend ::log [list $code $arg1 $arg2 $arg3 $arg4 $args]
lappend ::log [list $code $arg1 $arg2 $arg3 $arg4]
}
return SQLITE_OK
}
set log ""
db authorizer ::authLogDelete
db eval {DROP VIEW x1;}
set log
} {}
set res [list {SQLITE_DELETE sqlite_stat1 {} main {}}]
ifcapable stat4 { lappend res {SQLITE_DELETE sqlite_stat4 {} main {}} }
do_test view-25.2 {
set log ""
db eval {DROP TABLE t25;}
set log
} $res
#-------------------------------------------------------------------------
do_execsql_test view-26.0 {
CREATE TABLE t16(a, b, c UNIQUE);
INSERT INTO t16 VALUES(1, 1, 1);
INSERT INTO t16 VALUES(2, 2, 2);
INSERT INTO t16 VALUES(3, 3, 3);
CREATE VIEW v16 AS SELECT max(a) AS mx, min(b) AS mn FROM t16 GROUP BY c;
SELECT * FROM v16 AS one, v16 AS two WHERE one.mx=1;
} {
1 1 1 1
1 1 2 2
1 1 3 3
}
do_execsql_test view-26.1 {
WITH v17(x,y) AS (SELECT max(a), min(b) FROM t16 GROUP BY c)
SELECT * FROM v17 AS one, v17 AS two WHERE one.x=1;
} {
1 1 1 1
1 1 2 2
1 1 3 3
}
#-------------------------------------------------------------------------
reset_db
do_execsql_test view-27.0 {
CREATE TABLE t0(c0 TEXT, c1);
INSERT INTO t0(c0, c1) VALUES (-1, 0);
CREATE VIEW v0(c0, c1) AS SELECT t0.c0, AVG(t0.c1) FROM t0;
}
do_execsql_test view-27.1 {
SELECT c0, typeof(c0), c1, typeof(c1) FROM v0;
} {
-1 text
0.0 real
}
do_execsql_test view-27.2 { SELECT c0<c1 FROM v0 } 1
do_execsql_test view-27.3 { SELECT c1<c0 FROM v0 } 0
do_execsql_test view-27.4 {
SELECT 1 FROM v0 WHERE c1<c0
} {}
do_execsql_test view-27.5 {
SELECT 1 FROM v0 WHERE c0<c1
} {1}
do_execsql_test view-27.6 {
SELECT c0<c1 FROM (SELECT t0.c0 AS c0, AVG(t0.c1) AS c1 FROM t0)
} 1
do_execsql_test view-27.7 {
SELECT c1<c0 FROM (SELECT t0.c0 AS c0, AVG(t0.c1) AS c1 FROM t0)
} 0
do_execsql_test view-27.8 {
SELECT 1 FROM (SELECT t0.c0 AS c0, AVG(t0.c1) AS c1 FROM t0) WHERE c1<c0
} {}
do_execsql_test view-27.9 {
SELECT 1 FROM (SELECT t0.c0 AS c0, AVG(t0.c1) AS c1 FROM t0) WHERE c0<c1
} {1}
#-------------------------------------------------------------------------
reset_db
do_execsql_test view-28.0 {
CREATE TABLE t0(c0 TEXT);
CREATE VIEW v0(c0) AS SELECT t0.c0 FROM t0;
INSERT INTO t0(c0) VALUES ('0');
}
do_execsql_test view-28.1 {
SELECT 0 IN (c0) FROM t0;
} {0}
do_execsql_test view-28.2 {
SELECT 0 IN (c0) FROM (SELECT c0 FROM t0);
} {0}
#-------------------------------------------------------------------------
# 2020-10-26. https://sqlite.org/forum/forumpost/daa2c728cc
#
reset_db
do_catchsql_test view-29.0 {
CREATE TABLE t1(a,b,c);
CREATE VIEW IF NOT EXISTS IF AS SELECT null;
} {1 {malformed database schema (IF) - near "AS": syntax error}}
do_catchsql_test view-29.1 {
CREATE TABLE t2(c,d,e);
SELECT name FROM sqlite_schema ORDER BY name;
} {0 {t1 t2}}
#-------------------------------------------------------------------------
# 2022-12-11. https://sqlite.org/src/info/679ed6a2
#
# 2022-12-14 change: If the AS SELECT of a VIEW is a compound where
# the datatypes on each arm of the compound are different, then the
# datatype of the overall column is BLOB (ANY).
#
reset_db
do_execsql_test view-30.0 {
CREATE TABLE t0(a INT, b TEXT);
INSERT INTO t0 VALUES(1,'one');
CREATE VIEW t1 AS SELECT a, b FROM t0 UNION ALL SELECT 2, 2;
CREATE VIEW t2(a,b) AS SELECT a, b FROM t0 UNION ALL SELECT 2, 2;
}
ifcapable schema_pragmas {
do_execsql_test view-30.1 {
PRAGMA table_info = t1;
} { 0 a INT 0 {} 0 1 b BLOB 0 {} 0 }
do_execsql_test view-30.2 {
PRAGMA table_info = t2;
} { 0 a INT 0 {} 0 1 b BLOB 0 {} 0 }
}
finish_test
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