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Overview
Comment:Allow comparison operators of a register against itself. Ticket [188f912b51cd802a],
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SHA3-256: 401c9d30e06191d938503aae024bc453d960fa64dc812ed86c661f94533247fd
User & Date: drh 2019-12-24 01:53:05
References
2019-12-24
21:42
Fix a minor performance regression from check-in [401c9d30e06191d9] (check-in: 76f54ee8 user: drh tags: trunk)
Context
2019-12-24
13:41
Convert an ALWAYS() into an assert() with an extra error term. Dbsqlfuzz find, with test case in TH3. (check-in: b473ad35 user: drh tags: trunk)
01:53
Allow comparison operators of a register against itself. Ticket [188f912b51cd802a], (check-in: 401c9d30 user: drh tags: trunk)
2019-12-23
21:11
Test case for the zipfile-extension bug fix of the previous check-in. (check-in: bc8bfc7f user: drh tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/vdbe.c.
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      if( (flags1 & MEM_Str)==0 && (flags1&(MEM_Int|MEM_Real|MEM_IntReal))!=0 ){
        testcase( pIn1->flags & MEM_Int );
        testcase( pIn1->flags & MEM_Real );
        testcase( pIn1->flags & MEM_IntReal );
        sqlite3VdbeMemStringify(pIn1, encoding, 1);
        testcase( (flags1&MEM_Dyn) != (pIn1->flags&MEM_Dyn) );
        flags1 = (pIn1->flags & ~MEM_TypeMask) | (flags1 & MEM_TypeMask);
        assert( pIn1!=pIn3 );
      }

      if( (flags3 & MEM_Str)==0 && (flags3&(MEM_Int|MEM_Real|MEM_IntReal))!=0 ){


        testcase( pIn3->flags & MEM_Int );
        testcase( pIn3->flags & MEM_Real );
        testcase( pIn3->flags & MEM_IntReal );
        sqlite3VdbeMemStringify(pIn3, encoding, 1);
        testcase( (flags3&MEM_Dyn) != (pIn3->flags&MEM_Dyn) );
        flags3 = (pIn3->flags & ~MEM_TypeMask) | (flags3 & MEM_TypeMask);
      }








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      if( (flags1 & MEM_Str)==0 && (flags1&(MEM_Int|MEM_Real|MEM_IntReal))!=0 ){
        testcase( pIn1->flags & MEM_Int );
        testcase( pIn1->flags & MEM_Real );
        testcase( pIn1->flags & MEM_IntReal );
        sqlite3VdbeMemStringify(pIn1, encoding, 1);
        testcase( (flags1&MEM_Dyn) != (pIn1->flags&MEM_Dyn) );
        flags1 = (pIn1->flags & ~MEM_TypeMask) | (flags1 & MEM_TypeMask);

      }
      if( (flags3 & MEM_Str)==0
       && (flags3&(MEM_Int|MEM_Real|MEM_IntReal))!=0
       && pIn1!=pIn3
      ){
        testcase( pIn3->flags & MEM_Int );
        testcase( pIn3->flags & MEM_Real );
        testcase( pIn3->flags & MEM_IntReal );
        sqlite3VdbeMemStringify(pIn3, encoding, 1);
        testcase( (flags3&MEM_Dyn) != (pIn3->flags&MEM_Dyn) );
        flags3 = (pIn3->flags & ~MEM_TypeMask) | (flags3 & MEM_TypeMask);
      }
︙︙
Changes to test/check.test. 
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# 2005 November 2
#
# 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 CHECK constraints
#
# $Id: check.test,v 1.13 2009/06/05 17:09:12 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl
set ::testprefix check

# Only run these tests if the build includes support for CHECK constraints
ifcapable !check {














<








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# 2005 November 2
#
# 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 CHECK constraints
#


set testdir [file dirname $argv0]
source $testdir/tester.tcl
set ::testprefix check

# Only run these tests if the build includes support for CHECK constraints
ifcapable !check {
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do_execsql_test 11.5 {
  INSERT INTO t2(b, a) VALUES(1, 'abc'||'');
}
do_execsql_test 11.6 {
  INSERT INTO t2(b, a) VALUES(2, 'abc');
}

finish_test


































































finish_test








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do_execsql_test 11.5 {
  INSERT INTO t2(b, a) VALUES(1, 'abc'||'');
}
do_execsql_test 11.6 {
  INSERT INTO t2(b, a) VALUES(2, 'abc');
}

# 2019-12-24 ticket b383b90278186263
#
reset_db
do_execsql_test 12.10 {
  CREATE TABLE t1(a TEXT, CHECK(a=+a));
  INSERT INTO t1(a) VALUES(NULL),('xyz'),(5),(x'303132'),(4.75);
  SELECT quote(a) FROM t1 ORDER BY rowid;
} {NULL 'xyz' '5' X'303132' '4.75'}
do_execsql_test 12.20 {
  DROP TABLE t1;
  CREATE TABLE t1(a TEXT, CHECK(a<>+a));
  INSERT INTO t1(a) VALUES(NULL);
} {}
do_catchsql_test 12.21 {
  INSERT INTO t1(a) VALUES('xyz');
} {1 {CHECK constraint failed: t1}}
do_catchsql_test 12.22 {
  INSERT INTO t1(a) VALUES(123);
} {1 {CHECK constraint failed: t1}}
do_execsql_test 12.30 {
  DROP TABLE t1;
  CREATE TABLE t1(a TEXT, CHECK(NOT(a=+a)));
  INSERT INTO t1(a) VALUES(NULL);
} {}
do_catchsql_test 12.31 {
  INSERT INTO t1(a) VALUES('xyz');
} {1 {CHECK constraint failed: t1}}
do_catchsql_test 12.32 {
  INSERT INTO t1(a) VALUES(123);
} {1 {CHECK constraint failed: t1}}
do_execsql_test 12.40 {
  DROP TABLE t1;
  CREATE TABLE t1(a TEXT, CHECK(NOT(a<>+a)));
  INSERT INTO t1(a) VALUES(NULL),('xyz'),(5),(x'303132'),(4.75);
  SELECT quote(a) FROM t1 ORDER BY rowid;
} {NULL 'xyz' '5' X'303132' '4.75'}
do_execsql_test 12.50 {
  DROP TABLE t1;
  CREATE TABLE t1(a TEXT, CHECK(a BETWEEN 0 AND +a));
  INSERT INTO t1(a) VALUES(NULL),('xyz'),(5),(x'303132'),(4.75);
  SELECT quote(a) FROM t1 ORDER BY rowid;
} {NULL 'xyz' '5' X'303132' '4.75'}
do_execsql_test 12.60 {
  DROP TABLE t1;
  CREATE TABLE t1(a TEXT, CHECK(a NOT BETWEEN 0 AND +a));
  INSERT INTO t1(a) VALUES(NULL);
  SELECT quote(a) FROM t1 ORDER BY rowid;
} {NULL}
do_catchsql_test 12.61 {
  INSERT INTO t1(a) VALUES(456);
} {1 {CHECK constraint failed: t1}}
do_execsql_test 12.70 {
  DROP TABLE t1;
  CREATE TABLE t1(a TEXT, CHECK(a BETWEEN +a AND 999999));
  INSERT INTO t1(a) VALUES(NULL),(5);
  SELECT quote(a) FROM t1 ORDER BY rowid;
} {NULL '5'}
do_execsql_test 12.80 {
  DROP TABLE t1;
  CREATE TABLE t1(a TEXT, CHECK(a NOT BETWEEN +a AND 999999));
  INSERT INTO t1(a) VALUES(NULL);
  SELECT quote(a) FROM t1 ORDER BY rowid;
} {NULL}
do_catchsql_test 12.81 {
  INSERT INTO t1(a) VALUES(456);
} {1 {CHECK constraint failed: t1}}

finish_test