# 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

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(...)"

#

#----------------------------------------------------------------------

# Test cases vtab1.1.*

#

# We cannot create a virtual table if the module has not been registered.

#

do_test vtab1-1.1 {

  explain {

    CREATE VIRTUAL TABLE t1 USING echo;

  }

  catchsql {

    CREATE VIRTUAL TABLE 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 {

  catchsql {

    CREATE VIRTUAL TABLE 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 {

  catchsql {

    CREATE VIRTUAL TABLE 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 {

  catchsql {

    CREATE VIRTUAL TABLE sqlite_master USING echo;

  }

} {1 {object name reserved for internal use: sqlite_master}}

do_test vtab1-1.8 {

  catchsql {

    CREATE TABLE treal(a, b, c);

    CREATE VIRTUAL TABLE treal USING echo(treal);

  }

} {1 {table treal already exists}}

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 {

  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 {

  set echo_module ""

  execsql {

    SELECT * FROM t1;

  }

  set echo_module

} [list xBestIndex {SELECT rowid, * FROM 'treal'} \

        xFilter    {SELECT rowid, * 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, * FROM 'treal' WHERE b = ?}   \

        xFilter    {SELECT rowid, * 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, * FROM 'treal' WHERE b >= ? AND b <= ?}      \

        xFilter    {SELECT rowid, * 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, * FROM 'treal' WHERE b >= ? AND b <= ?}      \

        xFilter    {SELECT rowid, * 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, * FROM 'treal'} \

        xFilter    {SELECT rowid, * 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, * FROM 'treal' WHERE b LIKE (SELECT '%'||?||'%')}  \

        xFilter \

        {SELECT rowid, * 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, * FROM 'treal' ORDER BY b ASC} \

        xFilter    {SELECT rowid, * 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, * FROM 'treal' ORDER BY b DESC} \

        xFilter    {SELECT rowid, * 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, * FROM 'treal'} \

        xFilter    {SELECT rowid, * 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, * FROM 't1'} \

  xFilter {SELECT rowid, * FROM 't2'} \

  xFilter {SELECT rowid, * 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, * FROM 't1'} \

  xFilter {SELECT rowid, * FROM 't2'} \

  xFilter {SELECT rowid, * 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, * FROM 't2' WHERE d = ?} \

  xFilter {SELECT rowid, * FROM 't1'}             \

]

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}

file delete -force test2.db

file delete -force 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

  }

} {}

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 {library routine called out of sequence}}

do_test vtab1.10-3 {

  set ::echo_module_begin_fail r

  catchsql {

    INSERT INTO e VALUES(1, 2, 3);

  }

} {1 {SQL logic error or missing database}}

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, * FROM 'r'} \

  xFilter {SELECT rowid, * FROM 'r'}    \

]

proc match_func {args} {return ""}

do_test vtab1.10-6 {

  set echo_module ""

  db function match match_func

  execsql {

    SELECT * FROM e WHERE match('pattern', rowid, 'pattern2');

  }

  set echo_module

} [list \

  xBestIndex {SELECT rowid, * FROM 'r'} \

  xFilter {SELECT rowid, * 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}}

#----------------------------------------------------------------------