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sqlite/test/vtab1.test
drh 62561b82f2 Avoid accessing the sqlite3_module.xShadowName field if (sqlite3_module.iVersion<3). 
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# 2006 June 10
#
# 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 creating and dropping virtual tables.
#
# $Id: vtab1.test,v 1.57 2008/08/01 17:51:47 danielk1977 Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix vtab1
ifcapable !vtab||!schema_pragmas {
finish_test
return
}
#----------------------------------------------------------------------
# Organization of tests in this file:
#
# vtab1-1.*: Error conditions and other issues surrounding creation/connection
# of a virtual module.
# vtab1-2.*: Test sqlite3_declare_vtab() and the xConnect/xDisconnect methods.
# vtab1-3.*: Table scans and WHERE clauses.
# vtab1-4.*: Table scans and ORDER BY clauses.
# vtab1-5.*: Test queries that include joins. This brings the
# sqlite3_index_info.estimatedCost variable into play.
# vtab1-6.*: Test UPDATE/INSERT/DELETE on vtables.
# vtab1-7.*: Test sqlite3_last_insert_rowid().
#
# This file uses the "echo" module (see src/test8.c). Refer to comments
# in that file for the special behaviour of the Tcl $echo_module variable.
#
# TODO:
# * How to test the sqlite3_index_constraint_usage.omit field?
# * vtab1-5.*
#
# vtab1-14.*: Test 'IN' constraints - i.e. "SELECT * FROM t1 WHERE id IN(...)"
#
# vtab1-18.*: Check that the LIKE optimization is not applied when the lhs
# is a virtual table column.
#
#----------------------------------------------------------------------
# Test cases vtab1.1.*
#
# We cannot create a virtual table if the module has not been registered.
#
do_test vtab1-1.1.1 {
catchsql {
CREATE VIRTUAL TABLE t1 USING echo;
}
} {1 {no such module: echo}}
do_test vtab1-1.1.2 {
catchsql {
CREATE VIRTUAL TABLE IF NOT EXISTS t1 USING echo;
}
} {1 {no such module: echo}}
do_test vtab1-1.2 {
execsql {
SELECT name FROM sqlite_master ORDER BY 1
}
} {}
# Register the module
register_echo_module [sqlite3_connection_pointer db]
# Once a module has been registered, virtual tables using that module
# may be created. However if a module xCreate() fails to call
# sqlite3_declare_vtab() an error will be raised and the table not created.
#
# The "echo" module does not invoke sqlite3_declare_vtab() if it is
# passed zero arguments.
#
do_test vtab1-1.3.1 {
catchsql {
CREATE VIRTUAL TABLE t1 USING echo;
}
} {1 {vtable constructor did not declare schema: t1}}
do_test vtab1-1.3.2 {
catchsql {
CREATE VIRTUAL TABLE IF NOT EXISTS t1 USING echo;
}
} {1 {vtable constructor did not declare schema: t1}}
do_test vtab1-1.4 {
execsql {
SELECT name FROM sqlite_master ORDER BY 1
}
} {}
# The "echo" module xCreate method returns an error and does not create
# the virtual table if it is passed an argument that does not correspond
# to an existing real table in the same database.
#
do_test vtab1-1.5.1 {
catchsql {
CREATE VIRTUAL TABLE t1 USING echo(no_such_table);
}
} {1 {vtable constructor failed: t1}}
do_test vtab1-1.5.2 {
catchsql {
CREATE VIRTUAL TABLE IF NOT EXISTS t1 USING echo(no_such_table);
}
} {1 {vtable constructor failed: t1}}
do_test vtab1-1.6 {
execsql {
SELECT name FROM sqlite_master ORDER BY 1
}
} {}
# Ticket #2156. Using the sqlite3_prepare_v2() API, make sure that
# a CREATE VIRTUAL TABLE statement can be used multiple times.
#
do_test vtab1-1.2152.1 {
set DB [sqlite3_connection_pointer db]
set sql {CREATE VIRTUAL TABLE t2152a USING echo(t2152b)}
set STMT [sqlite3_prepare_v2 $DB $sql -1 TAIL]
sqlite3_step $STMT
} SQLITE_ERROR
do_test vtab-1.2152.2 {
sqlite3_reset $STMT
sqlite3_step $STMT
} SQLITE_ERROR
do_test vtab-1.2152.3 {
sqlite3_reset $STMT
db eval {CREATE TABLE t2152b(x,y)}
sqlite3_step $STMT
} SQLITE_DONE
do_test vtab-1.2152.4 {
sqlite3_finalize $STMT
db eval {DROP TABLE t2152a; DROP TABLE t2152b}
} {}
# Test to make sure nothing goes wrong and no memory is leaked if we
# select an illegal table-name (i.e a reserved name or the name of a
# table that already exists).
#
do_test vtab1-1.7.1 {
catchsql {
CREATE VIRTUAL TABLE sqlite_master USING echo;
}
} {1 {object name reserved for internal use: sqlite_master}}
do_test vtab1-1.7.2 {
catchsql {
CREATE VIRTUAL TABLE IF NOT EXISTS sqlite_master USING echo;
}
} {1 {object name reserved for internal use: sqlite_master}}
do_test vtab1-1.8.1 {
catchsql {
CREATE TABLE treal(a, b, c);
CREATE VIRTUAL TABLE treal USING echo(treal);
}
} {1 {table treal already exists}}
do_test vtab1-1.8.2 {
catchsql {
CREATE VIRTUAL TABLE IF NOT EXISTS treal USING echo(treal);
}
} {0 {}}
do_test vtab1-1.9 {
execsql {
DROP TABLE treal;
SELECT name FROM sqlite_master ORDER BY 1
}
} {}
do_test vtab1-1.10 {
execsql {
CREATE TABLE treal(a, b, c);
CREATE VIRTUAL TABLE techo USING echo(treal);
}
db close
sqlite3 db test.db
catchsql {
SELECT * FROM techo;
}
} {1 {no such module: echo}}
do_test vtab1-1.11 {
catchsql {
INSERT INTO techo VALUES(1, 2, 3);
}
} {1 {no such module: echo}}
do_test vtab1-1.12 {
catchsql {
UPDATE techo SET a = 10;
}
} {1 {no such module: echo}}
do_test vtab1-1.13 {
catchsql {
DELETE FROM techo;
}
} {1 {no such module: echo}}
do_test vtab1-1.14 {
catchsql {
PRAGMA table_info(techo)
}
} {1 {no such module: echo}}
do_test vtab1-1.15 {
catchsql {
DROP TABLE techo;
}
} {1 {no such module: echo}}
register_echo_module [sqlite3_connection_pointer db]
register_echo_module [sqlite3_connection_pointer db]
# Test an error message returned from a v-table constructor.
#
do_test vtab1-1.16 {
execsql {
DROP TABLE techo;
CREATE TABLE logmsg(log);
}
catchsql {
CREATE VIRTUAL TABLE techo USING echo(treal, logmsg);
}
} {1 {table 'logmsg' already exists}}
do_test vtab1-1.17 {
execsql {
DROP TABLE treal;
DROP TABLE logmsg;
SELECT sql FROM sqlite_master;
}
} {}
#----------------------------------------------------------------------
# Test cases vtab1.2.*
#
# At this point, the database is completely empty. The echo module
# has already been registered.
# If a single argument is passed to the echo module during table
# creation, it is assumed to be the name of a table in the same
# database. The echo module attempts to set the schema of the
# new virtual table to be the same as the existing database table.
#
do_test vtab1-2.1 {
execsql {
CREATE TABLE template(a, b, c);
}
execsql { PRAGMA table_info(template); }
} [list \
0 a {} 0 {} 0 \
1 b {} 0 {} 0 \
2 c {} 0 {} 0 \
]
do_test vtab1-2.2 {
execsql {
CREATE VIRTUAL TABLE t1 USING echo(template);
}
execsql { PRAGMA table_info(t1); }
} [list \
0 a {} 0 {} 0 \
1 b {} 0 {} 0 \
2 c {} 0 {} 0 \
]
# Test that the database can be unloaded. This should invoke the xDisconnect()
# callback for the successfully create virtual table (t1).
#
do_test vtab1-2.3 {
set echo_module [list]
db close
set echo_module
} [list xDisconnect]
# Re-open the database. This should not cause any virtual methods to
# be called. The invocation of xConnect() is delayed until the virtual
# table schema is first required by the compiler.
#
do_test vtab1-2.4 {
set echo_module [list]
sqlite3 db test.db
db cache size 0
set echo_module
} {}
# Try to query the virtual table schema. This should fail, as the
# echo module has not been registered with this database connection.
#
do_test vtab1.2.6 {
catchsql { PRAGMA table_info(t1); }
} {1 {no such module: echo}}
# Register the module
register_echo_module [sqlite3_connection_pointer db]
# Try to query the virtual table schema again. This time it should
# invoke the xConnect method and succeed.
#
do_test vtab1.2.7 {
execsql { PRAGMA table_info(t1); }
} [list \
0 a {} 0 {} 0 \
1 b {} 0 {} 0 \
2 c {} 0 {} 0 \
]
do_test vtab1.2.8 {
set echo_module
} {xConnect echo main t1 template}
# Drop table t1. This should cause the xDestroy (but not xDisconnect) method
# to be invoked.
do_test vtab1-2.5 {
set echo_module ""
execsql {
DROP TABLE t1;
}
set echo_module
} {xDestroy}
do_test vtab1-2.6 {
execsql {
PRAGMA table_info(t1);
}
} {}
do_test vtab1-2.7 {
execsql {
SELECT sql FROM sqlite_master;
}
} [list {CREATE TABLE template(a, b, c)}]
# Clean up other test artifacts:
do_test vtab1-2.8 {
execsql {
DROP TABLE template;
SELECT sql FROM sqlite_master;
}
} [list]
#----------------------------------------------------------------------
# Test case vtab1-3 test table scans and the echo module's
# xBestIndex/xFilter handling of WHERE conditions.
do_test vtab1-3.1 {
set echo_module ""
execsql {
CREATE TABLE treal(a INTEGER, b INTEGER, c);
CREATE INDEX treal_idx ON treal(b);
CREATE VIRTUAL TABLE t1 USING echo(treal);
}
set echo_module
} [list xCreate echo main t1 treal \
xSync echo(treal) \
xCommit echo(treal) \
]
# Test that a SELECT on t1 doesn't crash. No rows are returned
# because the underlying real table is currently empty.
#
do_test vtab1-3.2 {
execsql {
SELECT a, b, c FROM t1;
}
} {}
# Put some data into the table treal. Then try a few simple SELECT
# statements on t1.
#
do_test vtab1-3.3 {
execsql {
INSERT INTO treal VALUES(1, 2, 3);
INSERT INTO treal VALUES(4, 5, 6);
SELECT * FROM t1;
}
} {1 2 3 4 5 6}
do_test vtab1-3.4 {
execsql {
SELECT a FROM t1;
}
} {1 4}
do_test vtab1-3.5 {
execsql {
SELECT rowid FROM t1;
}
} {1 2}
do_test vtab1-3.6 {
set echo_module ""
execsql {
SELECT * FROM t1;
}
} {1 2 3 4 5 6}
do_test vtab1-3.7 {
execsql {
SELECT rowid, * FROM t1;
}
} {1 1 2 3 2 4 5 6}
do_test vtab1-3.8.1 {
execsql {
SELECT a AS d, b AS e, c AS f FROM t1;
}
} {1 2 3 4 5 6}
# Execute some SELECT statements with WHERE clauses on the t1 table.
# Then check the echo_module variable (written to by the module methods
# in test8.c) to make sure the xBestIndex() and xFilter() methods were
# called correctly.
#
do_test vtab1-3.8.2 {
set echo_module ""
execsql {
SELECT * FROM t1;
}
set echo_module
} [list xBestIndex {SELECT rowid, a, b, c FROM 'treal'} \
xFilter {SELECT rowid, a, b, c FROM 'treal'} ]
do_test vtab1-3.9 {
set echo_module ""
execsql {
SELECT * FROM t1 WHERE b = 5;
}
} {4 5 6}
do_test vtab1-3.10 {
set echo_module
} [list xBestIndex {SELECT rowid, a, b, c FROM 'treal' WHERE b = ?} \
xFilter {SELECT rowid, a, b, c FROM 'treal' WHERE b = ?} 5 ]
do_test vtab1-3.10 {
set echo_module ""
execsql {
SELECT * FROM t1 WHERE b >= 5 AND b <= 10;
}
} {4 5 6}
do_test vtab1-3.11 {
set echo_module
} [list xBestIndex {SELECT rowid, a, b, c FROM 'treal' WHERE b >= ? AND b <= ?}\
xFilter {SELECT rowid, a, b, c FROM 'treal' WHERE b >= ? AND b <= ?}\
5 10 ]
do_test vtab1-3.12 {
set echo_module ""
execsql {
SELECT * FROM t1 WHERE b BETWEEN 2 AND 10;
}
} {1 2 3 4 5 6}
do_test vtab1-3.13 {
set echo_module
} [list xBestIndex {SELECT rowid, a, b, c FROM 'treal' WHERE b >= ? AND b <= ?}\
xFilter {SELECT rowid, a, b, c FROM 'treal' WHERE b >= ? AND b <= ?}\
2 10 ]
# Add a function for the MATCH operator. Everything always matches!
#proc test_match {lhs rhs} {
# lappend ::echo_module MATCH $lhs $rhs
# return 1
#}
#db function match test_match
set echo_module ""
do_test vtab1-3.12 {
set echo_module ""
catchsql {
SELECT * FROM t1 WHERE a MATCH 'string';
}
} {1 {unable to use function MATCH in the requested context}}
do_test vtab1-3.13 {
set echo_module
} [list xBestIndex {SELECT rowid, a, b, c FROM 'treal'} \
xFilter {SELECT rowid, a, b, c FROM 'treal'}]
ifcapable subquery {
# The echo module uses a subquery internally to implement the MATCH operator.
do_test vtab1-3.14 {
set echo_module ""
execsql {
SELECT * FROM t1 WHERE b MATCH 'string';
}
} {}
do_test vtab1-3.15 {
set echo_module
} [list xBestIndex \
{SELECT rowid, a, b, c FROM 'treal' WHERE b LIKE (SELECT '%'||?||'%')} \
xFilter \
{SELECT rowid, a, b, c FROM 'treal' WHERE b LIKE (SELECT '%'||?||'%')} \
string ]
}; #ifcapable subquery
#----------------------------------------------------------------------
# Test case vtab1-3 test table scans and the echo module's
# xBestIndex/xFilter handling of ORDER BY clauses.
# This procedure executes the SQL. Then it checks to see if the OP_Sort
# opcode was executed. If an OP_Sort did occur, then "sort" is appended
# to the result. If no OP_Sort happened, then "nosort" is appended.
#
# This procedure is used to check to make sure sorting is or is not
# occurring as expected.
#
proc cksort {sql} {
set ::sqlite_sort_count 0
set data [execsql $sql]
if {$::sqlite_sort_count} {set x sort} {set x nosort}
lappend data $x
return $data
}
do_test vtab1-4.1 {
set echo_module ""
cksort {
SELECT b FROM t1 ORDER BY b;
}
} {2 5 nosort}
do_test vtab1-4.2 {
set echo_module
} [list xBestIndex {SELECT rowid, NULL, b, NULL FROM 'treal' ORDER BY b ASC} \
xFilter {SELECT rowid, NULL, b, NULL FROM 'treal' ORDER BY b ASC} ]
do_test vtab1-4.3 {
set echo_module ""
cksort {
SELECT b FROM t1 ORDER BY b DESC;
}
} {5 2 nosort}
do_test vtab1-4.4 {
set echo_module
} [list xBestIndex {SELECT rowid, NULL, b, NULL FROM 'treal' ORDER BY b DESC} \
xFilter {SELECT rowid, NULL, b, NULL FROM 'treal' ORDER BY b DESC} ]
do_test vtab1-4.3 {
set echo_module ""
cksort {
SELECT b FROM t1 ORDER BY b||'';
}
} {2 5 sort}
do_test vtab1-4.4 {
set echo_module
} [list xBestIndex {SELECT rowid, NULL, b, NULL FROM 'treal'} \
xFilter {SELECT rowid, NULL, b, NULL FROM 'treal'} ]
execsql {
DROP TABLE t1;
DROP TABLE treal;
}
#----------------------------------------------------------------------
# Test cases vtab1-5 test SELECT queries that include joins on virtual
# tables.
proc filter {log} {
set out [list]
for {set ii 0} {$ii < [llength $log]} {incr ii} {
if {[lindex $log $ii] eq "xFilter"} {
lappend out xFilter
lappend out [lindex $log [expr $ii+1]]
}
}
return $out
}
do_test vtab1-5-1 {
execsql {
CREATE TABLE t1(a, b, c);
CREATE TABLE t2(d, e, f);
INSERT INTO t1 VALUES(1, 'red', 'green');
INSERT INTO t1 VALUES(2, 'blue', 'black');
INSERT INTO t2 VALUES(1, 'spades', 'clubs');
INSERT INTO t2 VALUES(2, 'hearts', 'diamonds');
CREATE VIRTUAL TABLE et1 USING echo(t1);
CREATE VIRTUAL TABLE et2 USING echo(t2);
}
} {}
do_test vtab1-5-2 {
set echo_module ""
execsql {
SELECT * FROM et1, et2;
}
} [list \
1 red green 1 spades clubs \
1 red green 2 hearts diamonds \
2 blue black 1 spades clubs \
2 blue black 2 hearts diamonds \
]
do_test vtab1-5-3 {
filter $echo_module
} [list \
xFilter {SELECT rowid, a, b, c FROM 't1'} \
xFilter {SELECT rowid, d, e, f FROM 't2'} \
xFilter {SELECT rowid, d, e, f FROM 't2'} \
]
do_test vtab1-5-4 {
set echo_module ""
execsql {
SELECT * FROM et1, et2 WHERE et2.d = 2;
}
} [list \
1 red green 2 hearts diamonds \
2 blue black 2 hearts diamonds \
]
do_test vtab1-5-5 {
filter $echo_module
} [list \
xFilter {SELECT rowid, a, b, c FROM 't1'} \
xFilter {SELECT rowid, d, e, f FROM 't2'} \
xFilter {SELECT rowid, d, e, f FROM 't2'} \
]
do_test vtab1-5-6 {
execsql {
CREATE INDEX i1 ON t2(d);
}
db close
sqlite3 db test.db
register_echo_module [sqlite3_connection_pointer db]
set ::echo_module ""
execsql {
SELECT * FROM et1, et2 WHERE et2.d = 2;
}
} [list \
1 red green 2 hearts diamonds \
2 blue black 2 hearts diamonds \
]
do_test vtab1-5-7 {
filter $::echo_module
} [list \
xFilter {SELECT rowid, a, b, c FROM 't1'} \
xFilter {SELECT rowid, d, e, f FROM 't2' WHERE d = ?} \
xFilter {SELECT rowid, d, e, f FROM 't2' WHERE d = ?} \
]
execsql {
DROP TABLE t1;
DROP TABLE t2;
DROP TABLE et1;
DROP TABLE et2;
}
#----------------------------------------------------------------------
# Test cases vtab1-6 test INSERT, UPDATE and DELETE operations
# on virtual tables.
do_test vtab1-6-1 {
execsql { SELECT sql FROM sqlite_master }
} {}
do_test vtab1-6-2 {
execsql {
CREATE TABLE treal(a PRIMARY KEY, b, c);
CREATE VIRTUAL TABLE techo USING echo(treal);
SELECT name FROM sqlite_master WHERE type = 'table';
}
} {treal techo}
do_test vtab1-6-3.1.1 {
execsql {
PRAGMA count_changes=ON;
INSERT INTO techo VALUES(1, 2, 3);
}
} {1}
do_test vtab1-6-3.1.2 {
db changes
} {1}
do_test vtab1-6-3.2 {
execsql {
SELECT * FROM techo;
}
} {1 2 3}
do_test vtab1-6-4.1 {
execsql {
UPDATE techo SET a = 5;
}
db changes
} {1}
do_test vtab1-6-4.2 {
execsql {
SELECT * FROM techo;
}
} {5 2 3}
do_test vtab1-6-4.3 {
execsql {
UPDATE techo SET a=6 WHERE a<0;
}
db changes
} {0}
do_test vtab1-6-4.4 {
execsql {
SELECT * FROM techo;
}
} {5 2 3}
do_test vtab1-6-5.1 {
execsql {
UPDATE techo set a = a||b||c;
}
db changes
} {1}
do_test vtab1-6-5.2 {
execsql {
SELECT * FROM techo;
}
} {523 2 3}
do_test vtab1-6-6.1 {
execsql {
UPDATE techo set rowid = 10;
}
db changes
} {1}
do_test vtab1-6-6.2 {
execsql {
SELECT rowid FROM techo;
}
} {10}
do_test vtab1-6-7.1.1 {
execsql {
INSERT INTO techo VALUES(11,12,13);
}
} {1}
do_test vtab1-6-7.1.2 {
db changes
} {1}
do_test vtab1-6-7.2 {
execsql {
SELECT * FROM techo ORDER BY a;
}
} {11 12 13 523 2 3}
do_test vtab1-6-7.3 {
execsql {
UPDATE techo SET b=b+1000
}
db changes
} {2}
do_test vtab1-6-7.4 {
execsql {
SELECT * FROM techo ORDER BY a;
}
} {11 1012 13 523 1002 3}
do_test vtab1-6-8.1 {
execsql {
DELETE FROM techo WHERE a=5;
}
db changes
} {0}
do_test vtab1-6-8.2 {
execsql {
SELECT * FROM techo ORDER BY a;
}
} {11 1012 13 523 1002 3}
do_test vtab1-6-8.3 {
execsql {
DELETE FROM techo;
}
db changes
} {2}
do_test vtab1-6-8.4 {
execsql {
SELECT * FROM techo ORDER BY a;
}
} {}
execsql {PRAGMA count_changes=OFF}
forcedelete test2.db
forcedelete test2.db-journal
sqlite3 db2 test2.db
execsql {
CREATE TABLE techo(a PRIMARY KEY, b, c);
} db2
proc check_echo_table {tn} {
set ::data1 [execsql {SELECT rowid, * FROM techo}]
set ::data2 [execsql {SELECT rowid, * FROM techo} db2]
do_test $tn {
string equal $::data1 $::data2
} 1
}
set tn 0
foreach stmt [list \
{INSERT INTO techo VALUES('abc', 'def', 'ghi')} \
{INSERT INTO techo SELECT a||'.'||rowid, b, c FROM techo} \
{INSERT INTO techo SELECT a||'x'||rowid, b, c FROM techo} \
{INSERT INTO techo SELECT a||'y'||rowid, b, c FROM techo} \
{DELETE FROM techo WHERE (oid % 3) = 0} \
{UPDATE techo set rowid = 100 WHERE rowid = 1} \
{INSERT INTO techo(a, b) VALUES('hello', 'world')} \
{DELETE FROM techo} \
] {
execsql $stmt
execsql $stmt db2
check_echo_table vtab1-6.8.[incr tn]
}
db2 close
#----------------------------------------------------------------------
# Test cases vtab1-7 tests that the value returned by
# sqlite3_last_insert_rowid() is set correctly when rows are inserted
# into virtual tables.
do_test vtab1.7-1 {
execsql {
CREATE TABLE real_abc(a PRIMARY KEY, b, c);
CREATE VIRTUAL TABLE echo_abc USING echo(real_abc);
}
} {}
do_test vtab1.7-2 {
execsql {
INSERT INTO echo_abc VALUES(1, 2, 3);
SELECT last_insert_rowid();
}
} {1}
do_test vtab1.7-3 {
execsql {
INSERT INTO echo_abc(rowid) VALUES(31427);
SELECT last_insert_rowid();
}
} {31427}
do_test vtab1.7-4 {
execsql {
INSERT INTO echo_abc SELECT a||'.v2', b, c FROM echo_abc;
SELECT last_insert_rowid();
}
} {31429}
do_test vtab1.7-5 {
execsql {
SELECT rowid, a, b, c FROM echo_abc
}
} [list 1 1 2 3 \
31427 {} {} {} \
31428 1.v2 2 3 \
31429 {} {} {} \
]
# Now test that DELETE and UPDATE operations do not modify the value.
do_test vtab1.7-6 {
execsql {
UPDATE echo_abc SET c = 5 WHERE b = 2;
SELECT last_insert_rowid();
}
} {31429}
do_test vtab1.7-7 {
execsql {
UPDATE echo_abc SET rowid = 5 WHERE rowid = 1;
SELECT last_insert_rowid();
}
} {31429}
do_test vtab1.7-8 {
execsql {
DELETE FROM echo_abc WHERE b = 2;
SELECT last_insert_rowid();
}
} {31429}
do_test vtab1.7-9 {
execsql {
SELECT rowid, a, b, c FROM echo_abc
}
} [list 31427 {} {} {} \
31429 {} {} {} \
]
do_test vtab1.7-10 {
execsql {
DELETE FROM echo_abc WHERE b = 2;
SELECT last_insert_rowid();
}
} {31429}
do_test vtab1.7-11 {
execsql {
SELECT rowid, a, b, c FROM real_abc
}
} [list 31427 {} {} {} \
31429 {} {} {} \
]
do_test vtab1.7-12 {
execsql {
DELETE FROM echo_abc;
SELECT last_insert_rowid();
}
} {31429}
do_test vtab1.7-13 {
execsql {
SELECT rowid, a, b, c FROM real_abc
}
} {}
# PRAGMA index_info and index_xinfo are no-ops on a virtual table
do_test vtab1.7-14 {
execsql {
PRAGMA index_info('echo_abc');
PRAGMA index_xinfo('echo_abc');
}
} {}
ifcapable attach {
do_test vtab1.8-1 {
set echo_module ""
execsql {
ATTACH 'test2.db' AS aux;
CREATE VIRTUAL TABLE aux.e2 USING echo(real_abc);
}
set echo_module
} [list xCreate echo aux e2 real_abc \
xSync echo(real_abc) \
xCommit echo(real_abc) \
]
}
do_test vtab1.8-2 {
catchsql {
DROP TABLE aux.e2;
}
execsql {
DROP TABLE treal;
DROP TABLE techo;
DROP TABLE echo_abc;
DROP TABLE real_abc;
}
} {}
do_test vtab1.9-1 {
set echo_module ""
execsql {
CREATE TABLE r(a, b, c);
CREATE VIRTUAL TABLE e USING echo(r, e_log);
SELECT name FROM sqlite_master;
}
} {r e e_log}
do_test vtab1.9-2 {
execsql {
DROP TABLE e;
SELECT name FROM sqlite_master;
}
} {r}
do_test vtab1.9-3 {
set echo_module ""
execsql {
CREATE VIRTUAL TABLE e USING echo(r, e_log, virtual 1 2 3 varchar(32));
}
set echo_module
} [list \
xCreate echo main e r e_log {virtual 1 2 3 varchar(32)} \
xSync echo(r) \
xCommit echo(r) \
]
do_test vtab1.10-1 {
execsql {
CREATE TABLE del(d);
CREATE VIRTUAL TABLE e2 USING echo(del);
}
db close
sqlite3 db test.db
register_echo_module [sqlite3_connection_pointer db]
execsql {
DROP TABLE del;
}
catchsql {
SELECT * FROM e2;
}
} {1 {vtable constructor failed: e2}}
do_test vtab1.10-2 {
set rc [catch {
set ptr [sqlite3_connection_pointer db]
sqlite3_declare_vtab $ptr {CREATE TABLE abc(a, b, c)}
} msg]
list $rc $msg
} {1 {bad parameter or other API misuse}}
do_test vtab1.10-3 {
set ::echo_module_begin_fail r
catchsql {
INSERT INTO e VALUES(1, 2, 3);
}
} {1 {SQL logic error}}
do_test vtab1.10-4 {
catch {execsql {
EXPLAIN SELECT * FROM e WHERE rowid = 2;
EXPLAIN QUERY PLAN SELECT * FROM e WHERE rowid = 2 ORDER BY rowid;
}}
} {0}
do_test vtab1.10-5 {
set echo_module ""
execsql {
SELECT * FROM e WHERE rowid||'' MATCH 'pattern';
}
set echo_module
} [list \
xBestIndex {SELECT rowid, a, b, c FROM 'r'} \
xFilter {SELECT rowid, a, b, c FROM 'r'} \
]
proc match_func {args} {return ""}
do_test vtab1.10-6 {
set echo_module ""
sqlite_delete_function db match
db function match match_func
execsql {
SELECT * FROM e WHERE match('pattern', rowid, 'pattern2');
}
set echo_module
} [list \
xBestIndex {SELECT rowid, a, b, c FROM 'r'} \
xFilter {SELECT rowid, a, b, c FROM 'r'} \
]
# Testing the xFindFunction interface
#
catch {rename ::echo_glob_overload {}}
do_test vtab1.11-1 {
execsql {
INSERT INTO r(a,b,c) VALUES(1,'?',99);
INSERT INTO r(a,b,c) VALUES(2,3,99);
SELECT a GLOB b FROM e
}
} {1 0}
proc ::echo_glob_overload {a b} {
return [list $b $a]
}
do_test vtab1.11-2 {
execsql {
SELECT a like 'b' FROM e
}
} {0 0}
do_test vtab1.11-3 {
execsql {
SELECT a glob '2' FROM e
}
} {{1 2} {2 2}}
do_test vtab1.11-4 {
execsql {
SELECT glob('2',a) FROM e
}
} {0 1}
do_test vtab1.11-5 {
execsql {
SELECT glob(a,'2') FROM e
}
} {{2 1} {2 2}}
#----------------------------------------------------------------------
# Test the outcome if a constraint is encountered half-way through
# a multi-row INSERT that is inside a transaction
#
do_test vtab1.12-1 {
execsql {
CREATE TABLE b(a, b, c);
CREATE TABLE c(a UNIQUE, b, c);
INSERT INTO b VALUES(1, 'A', 'B');
INSERT INTO b VALUES(2, 'C', 'D');
INSERT INTO b VALUES(3, 'E', 'F');
INSERT INTO c VALUES(3, 'G', 'H');
CREATE VIRTUAL TABLE echo_c USING echo(c);
}
} {}
# First test outside of a transaction.
do_test vtab1.12-2 {
catchsql { INSERT INTO echo_c SELECT * FROM b; }
} {1 {echo-vtab-error: UNIQUE constraint failed: c.a}}
do_test vtab1.12-2.1 {
sqlite3_errmsg db
} {echo-vtab-error: UNIQUE constraint failed: c.a}
do_test vtab1.12-3 {
execsql { SELECT * FROM c }
} {3 G H}
# Now the real test - wrapped in a transaction.
do_test vtab1.12-4 {
execsql {BEGIN}
catchsql { INSERT INTO echo_c SELECT * FROM b; }
} {1 {echo-vtab-error: UNIQUE constraint failed: c.a}}
do_test vtab1.12-5 {
execsql { SELECT * FROM c }
} {3 G H}
do_test vtab1.12-6 {
execsql { COMMIT }
execsql { SELECT * FROM c }
} {3 G H}
# At one point (ticket #2759), a WHERE clause of the form "<column> IS NULL"
# on a virtual table was causing an assert() to fail in the compiler.
#
# "IS NULL" clauses should not be passed through to the virtual table
# implementation. They are handled by SQLite after the vtab returns its
# data.
#
do_test vtab1.13-1 {
execsql {
SELECT * FROM echo_c WHERE a IS NULL
}
} {}
do_test vtab1.13-2 {
execsql {
INSERT INTO c VALUES(NULL, 15, 16);
SELECT * FROM echo_c WHERE a IS NULL
}
} {{} 15 16}
do_test vtab1.13-3 {
execsql {
INSERT INTO c VALUES(15, NULL, 16);
SELECT * FROM echo_c WHERE b IS NULL
}
} {15 {} 16}
do_test vtab1.13-4 {
unset -nocomplain null
execsql {
SELECT * FROM echo_c WHERE b IS $null
}
} {15 {} 16}
do_test vtab1.13-5 {
execsql {
SELECT * FROM echo_c WHERE b IS NULL AND a = 15;
}
} {15 {} 16}
do_test vtab1.13-6 {
execsql {
SELECT * FROM echo_c WHERE NULL IS b AND a IS 15;
}
} {15 {} 16}
do_test vtab1-14.001 {
execsql {SELECT rowid, * FROM echo_c WHERE +rowid IN (1,2,3)}
} {1 3 G H 2 {} 15 16 3 15 {} 16}
do_test vtab1-14.002 {
execsql {SELECT rowid, * FROM echo_c WHERE rowid IN (1,2,3)}
} {1 3 G H 2 {} 15 16 3 15 {} 16}
do_test vtab1-14.003 {
execsql {SELECT rowid, * FROM echo_c WHERE +rowid IN (0,1,5,2,'a',3,NULL)}
} {1 3 G H 2 {} 15 16 3 15 {} 16}
do_test vtab1-14.004 {
execsql {SELECT rowid, * FROM echo_c WHERE rowid IN (0,1,5,'a',2,3,NULL)}
} {1 3 G H 2 {} 15 16 3 15 {} 16}
do_test vtab1-14.005 {
execsql {SELECT rowid, * FROM echo_c WHERE rowid NOT IN (0,1,5,'a',2,3)}
} {}
do_test vtab1-14.006 {
execsql {SELECT rowid, * FROM echo_c WHERE rowid NOT IN (0,5,'a',2,3)}
} {1 3 G H}
do_test vtab1-14.007 {
execsql {SELECT rowid, * FROM echo_c WHERE +rowid NOT IN (0,5,'a',2,3,NULL)}
} {}
do_test vtab1-14.008 {
execsql {SELECT rowid, * FROM echo_c WHERE rowid NOT IN (0,5,'a',2,3,NULL)}
} {}
do_test vtab1-14.011 {
execsql {SELECT * FROM echo_c WHERE +a IN (1,3,8,'x',NULL,15,24)}
} {3 G H 15 {} 16}
do_test vtab1-14.012 {
execsql {SELECT * FROM echo_c WHERE a IN (1,3,8,'x',NULL,15,24)}
} {3 G H 15 {} 16}
do_test vtab1-14.013 {
execsql {SELECT * FROM echo_c WHERE a NOT IN (1,8,'x',15,24)}
} {3 G H}
do_test vtab1-14.014 {
execsql {SELECT * FROM echo_c WHERE a NOT IN (1,8,'x',NULL,15,24)}
} {}
do_test vtab1-14.015 {
execsql {SELECT * FROM echo_c WHERE +a NOT IN (1,8,'x',NULL,15,24)}
} {}
#do_test vtab1-14.1 {
# execsql { DELETE FROM c }
# set echo_module ""
# execsql { SELECT * FROM echo_c WHERE rowid IN (1, 2, 3) }
# set echo_module
#} {/.*xBestIndex {SELECT rowid, . FROM 'c' WHERE rowid = .} xFilter {SELECT rowid, . FROM 'c'} 1/}
do_test vtab1-14.2 {
set echo_module ""
execsql { SELECT * FROM echo_c WHERE rowid = 1 }
set echo_module
} [list xBestIndex {SELECT rowid, a, b, c FROM 'c' WHERE rowid = ?} \
xFilter {SELECT rowid, a, b, c FROM 'c' WHERE rowid = ?} 1]
do_test vtab1-14.3 {
set echo_module ""
execsql { SELECT * FROM echo_c WHERE a = 1 }
set echo_module
} [list xBestIndex {SELECT rowid, a, b, c FROM 'c' WHERE a = ?} \
xFilter {SELECT rowid, a, b, c FROM 'c' WHERE a = ?} 1]
#do_test vtab1-14.4 {
# set echo_module ""
# execsql { SELECT * FROM echo_c WHERE a IN (1, 2) }
# set echo_module
#} {/xBestIndex {SELECT rowid, . FROM 'c' WHERE a = .} xFilter {SELECT rowid, . FROM 'c' WHERE a = .} 1/}
do_test vtab1-15.1 {
execsql {
CREATE TABLE t1(a, b, c);
CREATE VIRTUAL TABLE echo_t1 USING echo(t1);
}
} {}
do_test vtab1-15.2 {
execsql {
INSERT INTO echo_t1(rowid) VALUES(45);
SELECT rowid, * FROM echo_t1;
}
} {45 {} {} {}}
do_test vtab1-15.3 {
execsql {
INSERT INTO echo_t1(rowid) VALUES(NULL);
SELECT rowid, * FROM echo_t1;
}
} {45 {} {} {} 46 {} {} {}}
do_test vtab1-15.4 {
catchsql {
INSERT INTO echo_t1(rowid) VALUES('new rowid');
}
} {1 {datatype mismatch}}
# The following tests - vtab1-16.* - are designed to test that setting
# sqlite3_vtab.zErrMsg variable can be used by the vtab interface to
# return an error message to the user.
#
do_test vtab1-16.1 {
execsql {
CREATE TABLE t2(a PRIMARY KEY, b, c);
INSERT INTO t2 VALUES(1, 2, 3);
INSERT INTO t2 VALUES(4, 5, 6);
CREATE VIRTUAL TABLE echo_t2 USING echo(t2);
}
} {}
set tn 2
foreach method [list \
xBestIndex \
xOpen \
xFilter \
xNext \
xColumn \
xRowid \
] {
do_test vtab1-16.$tn {
set echo_module_fail($method,t2) "the $method method has failed"
catchsql { SELECT rowid, * FROM echo_t2 WHERE a >= 1 }
} "1 {echo-vtab-error: the $method method has failed}"
unset echo_module_fail($method,t2)
incr tn
}
foreach method [list \
xUpdate \
xBegin \
xSync \
] {
do_test vtab1-16.$tn {
set echo_module_fail($method,t2) "the $method method has failed"
catchsql { INSERT INTO echo_t2 VALUES(7, 8, 9) }
} "1 {echo-vtab-error: the $method method has failed}"
unset echo_module_fail($method,t2)
incr tn
}
ifcapable altertable {
do_test vtab1-16.$tn {
set echo_module_fail(xRename,t2) "the xRename method has failed"
catchsql { ALTER TABLE echo_t2 RENAME TO another_name }
} "1 {echo-vtab-error: the xRename method has failed}"
unset echo_module_fail(xRename,t2)
incr tn
}
# The following test case exposes an instance in sqlite3_declare_vtab()
# an error message was set using a call similar to sqlite3_mprintf(zErr),
# where zErr is an arbitrary string. This is no good if the string contains
# characters that can be mistaken for printf() formatting directives.
#
do_test vtab1-17.1 {
sqlite3_db_config db DEFENSIVE 0
execsql {
PRAGMA writable_schema = 1;
INSERT INTO sqlite_master VALUES(
'table', 't3', 't3', 0, 'INSERT INTO "%s%s" VALUES(1)'
);
}
catchsql { CREATE VIRTUAL TABLE t4 USING echo(t3); }
} {1 {vtable constructor failed: t4}}
# This test verifies that ticket 48f29963 is fixed.
#
do_test vtab1-17.1 {
execsql {
CREATE TABLE t5(a, b);
CREATE VIRTUAL TABLE e5 USING echo_v2(t5);
BEGIN;
INSERT INTO e5 VALUES(1, 2);
DROP TABLE e5;
SAVEPOINT one;
ROLLBACK TO one;
COMMIT;
}
} {}
do_test vtab1-17.2 {
execsql { DELETE FROM sqlite_master WHERE sql LIKE 'insert%' }
} {}
#-------------------------------------------------------------------------
# The following tests - vtab1-18.* - test that the optimization of LIKE
# constraints in where.c plays well with virtual tables.
#
# 18.1.*: Case-insensitive LIKE.
# 18.2.*: Case-sensitive LIKE.
#
unset -nocomplain echo_module_begin_fail
do_execsql_test 18.1.0 {
CREATE TABLE t6(a, b TEXT);
CREATE INDEX i6 ON t6(b, a);
INSERT INTO t6 VALUES(1, 'Peter');
INSERT INTO t6 VALUES(2, 'Andrew');
INSERT INTO t6 VALUES(3, '8James');
INSERT INTO t6 VALUES(4, '8John');
INSERT INTO t6 VALUES(5, 'Phillip');
INSERT INTO t6 VALUES(6, 'Bartholomew');
CREATE VIRTUAL TABLE e6 USING echo(t6);
}
ifcapable !icu {
foreach {tn sql res filter} {
1.1 "SELECT a FROM e6 WHERE b>'8James'" {4 2 6 1 5}
{xFilter {SELECT rowid, a, b FROM 't6' WHERE b > ?} 8James}
1.2 "SELECT a FROM e6 WHERE b>='8' AND b<'9'" {3 4}
{xFilter {SELECT rowid, a, b FROM 't6' WHERE b >= ? AND b < ?} 8 9}
1.3 "SELECT a FROM e6 WHERE b LIKE '8J%'" {3 4}
{xFilter {SELECT rowid, a, b FROM 't6' WHERE b >= ? AND b < ? AND b like ?} 8J 8k 8J%}
1.4 "SELECT a FROM e6 WHERE b LIKE '8j%'" {3 4}
{xFilter {SELECT rowid, a, b FROM 't6' WHERE b >= ? AND b < ? AND b like ?} 8J 8k 8j%}
1.5 "SELECT a FROM e6 WHERE b LIKE '8%'" {3 4}
{xFilter {SELECT rowid, a, b FROM 't6' WHERE b like ?} 8%}
} {
set echo_module {}
do_execsql_test 18.$tn.1 $sql $res
do_test 18.$tn.2 { lrange $::echo_module 2 end } $filter
}
}
do_execsql_test 18.2.0 { PRAGMA case_sensitive_like = ON }
foreach {tn sql res filter} {
2.1 "SELECT a FROM e6 WHERE b LIKE '8%'" {3 4}
{xFilter {SELECT rowid, a, b FROM 't6' WHERE b like ?} 8%}
2.2 "SELECT a FROM e6 WHERE b LIKE '8j%'" {}
{xFilter {SELECT rowid, a, b FROM 't6' WHERE b >= ? AND b < ? AND b like ?} 8j 8k 8j%}
2.3 "SELECT a FROM e6 WHERE b LIKE '8J%'" {3 4}
{xFilter {SELECT rowid, a, b FROM 't6' WHERE b >= ? AND b < ? AND b like ?} 8J 8K 8J%}
} {
set echo_module {}
do_execsql_test 18.$tn.1 $sql $res
do_test 18.$tn.2 { lrange $::echo_module 2 end } $filter
}
do_execsql_test 18.2.x { PRAGMA case_sensitive_like = OFF }
#-------------------------------------------------------------------------
# Test that it is ok to override and existing module.
#
do_test 19.1 {
sqlite3 db2 test.db
register_echo_module [sqlite3_connection_pointer db2]
} SQLITE_OK
do_test 19.2 {
register_echo_module [sqlite3_connection_pointer db2]
} SQLITE_OK
do_test 19.3 {
db2 close
} {}
#-------------------------------------------------------------------------
# Test that the bug fixed by [b0c1ba655d69] really is fixed.
#
do_execsql_test 20.1 {
CREATE TABLE t7 (a, b);
CREATE TABLE t8 (c, d);
CREATE INDEX i2 ON t7(a);
CREATE INDEX i3 ON t7(b);
CREATE INDEX i4 ON t8(c);
CREATE INDEX i5 ON t8(d);
CREATE VIRTUAL TABLE t7v USING echo(t7);
CREATE VIRTUAL TABLE t8v USING echo(t8);
}
do_test 20.2 {
for {set i 0} {$i < 1000} {incr i} {
db eval {INSERT INTO t7 VALUES($i, $i)}
db eval {INSERT INTO t8 VALUES($i, $i)}
}
} {}
do_execsql_test 20.3 {
SELECT a, b FROM (
SELECT a, b FROM t7 WHERE a=11 OR b=12
UNION ALL
SELECT c, d FROM t8 WHERE c=5 OR d=6
)
ORDER BY 1, 2;
} {5 5 6 6 11 11 12 12}
do_execsql_test 20.4 {
SELECT a, b FROM (
SELECT a, b FROM t7v WHERE a=11 OR b=12
UNION ALL
SELECT c, d FROM t8v WHERE c=5 OR d=6
)
ORDER BY 1, 2;
} {5 5 6 6 11 11 12 12}
#-------------------------------------------------------------------------
#
do_execsql_test 21.1 {
CREATE TABLE t9(a,b,c);
CREATE VIRTUAL TABLE t9v USING echo(t9);
INSERT INTO t9 VALUES(1,2,3);
INSERT INTO t9 VALUES(3,2,1);
INSERT INTO t9 VALUES(2,2,2);
}
do_execsql_test 21.2 {
SELECT * FROM t9v WHERE a<b;
} {1 2 3}
do_execsql_test 21.3 {
SELECT * FROM t9v WHERE a=b;
} {2 2 2}
#-------------------------------------------------------------------------
# At one point executing a CREATE VIRTUAL TABLE statement that specified
# a database name but no virtual table arguments was causing an internal
# buffer overread. Valgrind would report errors while running the following
# tests. Specifically:
#
# CREATE VIRTUAL TABLE t1 USING fts4; -- Ok - no db name.
# CREATE VIRTUAL TABLE main.t1 USING fts4(x); -- Ok - has vtab arguments.
# CREATE VIRTUAL TABLE main.t1 USING fts4; -- Had the problem.
#
ifcapable fts3 {
forcedelete test.db2
set nm [string repeat abcdefghij 100]
do_execsql_test 22.1 {
ATTACH 'test.db2' AS $nm
}
execsql "SELECT * FROM sqlite_master"
do_execsql_test 22.2 "CREATE VIRTUAL TABLE ${nm}.t1 USING fts4"
do_test 22.3.1 {
set sql "CREATE VIRTUAL TABLE ${nm}.t2 USING fts4"
set stmt [sqlite3_prepare_v2 db $sql -1 dummy]
sqlite3_step $stmt
} {SQLITE_DONE}
do_test 22.3.2 {
sqlite3_finalize $stmt
} {SQLITE_OK}
do_test 22.4.1 {
set sql "CREATE VIRTUAL TABLE ${nm}.t3 USING fts4"
set n [string length $sql]
set stmt [sqlite3_prepare db "${sql}xyz" $n dummy]
sqlite3_step $stmt
} {SQLITE_DONE}
do_test 22.4.2 {
sqlite3_finalize $stmt
} {SQLITE_OK}
}
#-------------------------------------------------------------------------
# The following tests verify that a DROP TABLE command on a virtual
# table does not cause other operations to crash.
#
# 23.1: Dropping a vtab while a SELECT is running on it.
#
# 23.2: Dropping a vtab while a SELECT that will, but has not yet,
# open a cursor on the vtab, is running. In this case the
# DROP TABLE succeeds and the SELECT hits an error.
#
# 23.3: Dropping a vtab from within a user-defined-function callback
# in the middle of an "INSERT INTO vtab SELECT ..." statement.
#
reset_db
load_static_extension db wholenumber
load_static_extension db eval
register_echo_module db
do_test 23.1 {
execsql { CREATE VIRTUAL TABLE t1 USING wholenumber }
set res ""
db eval { SELECT value FROM t1 WHERE value<10 } {
if {$value == 5} {
set res [catchsql { DROP TABLE t1 }]
}
}
set res
} {1 {database table is locked}}
do_test 23.2 {
execsql {
CREATE TABLE t2(value);
INSERT INTO t2 VALUES(1), (2), (3);
}
set res2 [list [catch {
db eval {
SELECT value FROM t2 UNION ALL
SELECT value FROM t1 WHERE value<10
} {
if {$value == 2} { set res1 [catchsql { DROP TABLE t1 }] }
}
} msg] $msg]
list $res1 $res2
} {{0 {}} {1 {database table is locked}}}
do_test 23.3.1 {
execsql { CREATE VIRTUAL TABLE t1e USING echo(t2) }
execsql { INSERT INTO t1e SELECT 4 }
catchsql { INSERT INTO t1e SELECT eval('DROP TABLE t1e') }
} {1 {database table is locked}}
do_execsql_test 23.3.2 { SELECT * FROM t1e } {1 2 3 4}
#-------------------------------------------------------------------------
# At one point SQL like this:
#
# SAVEPOINT xyz; -- Opens SQL transaction
# INSERT INTO vtab -- Write to virtual table
# ROLLBACK TO xyz;
# RELEASE xyz;
#
# was not invoking the xRollbackTo() callback for the ROLLBACK TO
# operation. Which meant that virtual tables like FTS3 would incorrectly
# commit the results of the INSERT as part of the "RELEASE xyz" command.
#
# The following tests check that this has been fixed.
#
ifcapable fts3 {
do_execsql_test 24.0 {
CREATE VIRTUAL TABLE t4 USING fts3();
SAVEPOINT a;
INSERT INTO t4 VALUES('a b c');
ROLLBACK TO a;
RELEASE a;
SELECT * FROM t4;
} {}
do_execsql_test 24.1 { SELECT * FROM t4 WHERE t4 MATCH 'b' } {}
do_execsql_test 24.2 { INSERT INTO t4(t4) VALUES('integrity-check') } {}
do_execsql_test 24.3 {
SAVEPOINT a;
CREATE VIRTUAL TABLE t5 USING fts3();
SAVEPOINT b;
ROLLBACK TO a;
SAVEPOINT c;
RELEASE a;
}
}
# 2021-07-04 https://sqlite.org/forum/forumpost/16ca0e9f32
# Yu Liang crash involving UPDATE on a virtual table with
# a duplicate column in a vector changeset and invoking the
# query flattener for UNION ALL.
#
reset_db
register_echo_module db
do_catchsql_test 25.0 {
CREATE TABLE t0(a);
CREATE VIRTUAL TABLE t1 USING echo(t0);
WITH t3(a) AS (SELECT * FROM t1 UNION ALL SELECT * FROM t1)
UPDATE t1 SET (a,a) = (SELECT 1, 0) FROM t3;
} {0 {}}
#--------------------------------------------------------------------------
#
reset_db
load_static_extension db wholenumber
do_execsql_test 26.1 {
CREATE VIRTUAL TABLE t1 USING wholenumber;
CREATE TABLE tx(a, b, c);
}
do_test 26.2 {
sqlite3 db2 test.db
db2 eval { CREATE TABLE ty(x, y) }
db2 close
} {}
do_execsql_test 26.3 {
SELECT value FROM t1 WHERE value<5
} {1 2 3 4}
finish_test
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