# 2006 January 30

#

# 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.

#

# This file implements tests to verify that ticket #1644 is

# fixed.  Ticket #1644 complains that precompiled statements

# are not expired correctly as a result of changes to TEMP

# views and triggers.

#

set testdir [file dirname $argv0]

source $testdir/tester.tcl

ifcapable !tempdb||!view {

  finish_test

  return

}  

# Create two tables T1 and T2 and make V1 point to T1.

do_test tkt1644-1.1 {

  execsql {

    CREATE TABLE t1(a);

    INSERT INTO t1 VALUES(1);

    CREATE TABLE t2(b);

    INSERT INTO t2 VALUES(99);

    CREATE TEMP VIEW v1 AS SELECT * FROM t1;

    SELECT * FROM v1;

  }

} {1}

# The "SELECT * FROM v1" should be in the TCL interface cache below.

# It will continue to point to T1 unless the cache is invalidated when

# the view changes.

#

do_test tkt1644-1.2 {

  execsql {

    DROP VIEW v1;

    CREATE TEMP VIEW v1 AS SELECT * FROM t2;

    SELECT * FROM v1;

  }

} {99}

# Cache an access to the T1 table.

#

do_test tkt1644-1.3 {

  execsql {

    SELECT * FROM t1;

  }

} {1}

# Create a temp table T1.  Make sure the cache is invalidated so that

# the statement is recompiled and refers to the empty temp table.

#

do_test tkt1644-1.4 {

  execsql {

    CREATE TEMP TABLE t1(x);

  }

  execsql {

    SELECT * FROM t1;

  }

} {}

ifcapable view {

  do_test tkt1644-2.1 {

    execsql {

      CREATE TEMP TABLE temp_t1(a, b);

    }

    set ::DB [sqlite3_connection_pointer db]

    set ::STMT [sqlite3_prepare $::DB "SELECT * FROM temp_t1" -1 DUMMY]

    execsql {

      DROP TABLE temp_t1;

    }

    list [sqlite3_step $::STMT] [sqlite3_finalize $::STMT]

  } {SQLITE_ERROR SQLITE_SCHEMA}

  do_test tkt1644-2.2 {

    execsql {

      CREATE TABLE real_t1(a, b);

      CREATE TEMP VIEW temp_v1 AS SELECT * FROM real_t1;

    }

    set ::DB [sqlite3_connection_pointer db]

    set ::STMT [sqlite3_prepare $::DB "SELECT * FROM temp_v1" -1 DUMMY]

    execsql {

      DROP VIEW temp_v1;

    }

    list [sqlite3_step $::STMT] [sqlite3_finalize $::STMT]

  } {SQLITE_ERROR SQLITE_SCHEMA}

  do_test tkt1644-2.3 {

    execsql {

      CREATE TEMP VIEW temp_v1 AS SELECT * FROM real_t1 LIMIT 10 OFFSET 10;

    }

    set ::DB [sqlite3_connection_pointer db]

    set ::STMT [sqlite3_prepare $::DB "SELECT * FROM temp_v1" -1 DUMMY]

    execsql {

      DROP VIEW temp_v1;

    }

    list [sqlite3_step $::STMT] [sqlite3_finalize $::STMT]

  } {SQLITE_ERROR SQLITE_SCHEMA}

}

finish_test