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   1  The entire distribution is subject to the GNU GENERAL PUBLIC LICENSE (see below).
   2  
   3  ----------------------------------------------------------------------
   4  
   5  Additional copyrights of the SQLDiff program:
   6  
   7  SQLDiff is copyright 2001-2003 by Katsman, Gliedt and Van Ittersum
   8  and the University of Michigan. All rights reserved.  
   9  
  10  Permission to use, copy, modify, and distribute this software and its
  11  documentation for any purpose and without fee is hereby granted,
  12  provided that the above copyright notice appear in all copies and that
  13  both that copyright notice and this permission notice appear in
  14  supporting documentation, and that the names of the authors and
  15  the University of Michigan are not used in advertising in publicity
  16  pertaining to distribution of the software without specific, written
  17  prior permission.
  18  
  19  KATSMAN, GLIEDT and VAN ITTERSUM AND THE UNIVERSITY OF MICHIGAN DISCLAIM
  20  ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED
  21  WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL ANY
  22  OF THE ABOVE BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL 
  23  DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA
  24  OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 
  25  TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  26  PERFORMANCE OF THIS SOFTWARE.
  27  
  28  -------------------------------------------------------------------------
  29  
  30              GNU GENERAL PUBLIC LICENSE
  31                 Version 2, June 1991
  32  
  33   Copyright (C) 1989, 1991 Free Software Foundation, Inc.
  34                         59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  35   Everyone is permitted to copy and distribute verbatim copies
  36   of this license document, but changing it is not allowed.
  37  
  38                  Preamble
  39  
  40    The licenses for most software are designed to take away your
  41  freedom to share and change it.  By contrast, the GNU General Public
  42  License is intended to guarantee your freedom to share and change free
  43  software--to make sure the software is free for all its users.  This
  44  General Public License applies to most of the Free Software
  45  Foundation's software and to any other program whose authors commit to
  46  using it.  (Some other Free Software Foundation software is covered by
  47  the GNU Library General Public License instead.)  You can apply it to
  48  your programs, too.
  49  
  50    When we speak of free software, we are referring to freedom, not
  51  price.  Our General Public Licenses are designed to make sure that you
  52  have the freedom to distribute copies of free software (and charge for
  53  this service if you wish), that you receive source code or can get it
  54  if you want it, that you can change the software or use pieces of it
  55  in new free programs; and that you know you can do these things.
  56  
  57    To protect your rights, we need to make restrictions that forbid
  58  anyone to deny you these rights or to ask you to surrender the rights.
  59  These restrictions translate to certain responsibilities for you if you
  60  distribute copies of the software, or if you modify it.
  61  
  62    For example, if you distribute copies of such a program, whether
  63  gratis or for a fee, you must give the recipients all the rights that
  64  you have.  You must make sure that they, too, receive or can get the
  65  source code.  And you must show them these terms so they know their
  66  rights.
  67  
  68    We protect your rights with two steps: (1) copyright the software, and
  69  (2) offer you this license which gives you legal permission to copy,
  70  distribute and/or modify the software.
  71  
  72    Also, for each author's protection and ours, we want to make certain
  73  that everyone understands that there is no warranty for this free
  74  software.  If the software is modified by someone else and passed on, we
  75  want its recipients to know that what they have is not the original, so
  76  that any problems introduced by others will not reflect on the original
  77  authors' reputations.
  78  
  79    Finally, any free program is threatened constantly by software
  80  patents.  We wish to avoid the danger that redistributors of a free
  81  program will individually obtain patent licenses, in effect making the
  82  program proprietary.  To prevent this, we have made it clear that any
  83  patent must be licensed for everyone's free use or not licensed at all.
  84  
  85    The precise terms and conditions for copying, distribution and
  86  modification follow.
  87  
  88              GNU GENERAL PUBLIC LICENSE
  89     TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
  90  
  91    0. This License applies to any program or other work which contains
  92  a notice placed by the copyright holder saying it may be distributed
  93  under the terms of this General Public License.  The "Program", below,
  94  refers to any such program or work, and a "work based on the Program"
  95  means either the Program or any derivative work under copyright law:
  96  that is to say, a work containing the Program or a portion of it,
  97  either verbatim or with modifications and/or translated into another
  98  language.  (Hereinafter, translation is included without limitation in
  99  the term "modification".)  Each licensee is addressed as "you".
 100  
 101  Activities other than copying, distribution and modification are not
 102  covered by this License; they are outside its scope.  The act of
 103  running the Program is not restricted, and the output from the Program
 104  is covered only if its contents constitute a work based on the
 105  Program (independent of having been made by running the Program).
 106  Whether that is true depends on what the Program does.
 107  
 108    1. You may copy and distribute verbatim copies of the Program's
 109  source code as you receive it, in any medium, provided that you
 110  conspicuously and appropriately publish on each copy an appropriate
 111  copyright notice and disclaimer of warranty; keep intact all the
 112  notices that refer to this License and to the absence of any warranty;
 113  and give any other recipients of the Program a copy of this License
 114  along with the Program.
 115  
 116  You may charge a fee for the physical act of transferring a copy, and
 117  you may at your option offer warranty protection in exchange for a fee.
 118  
 119    2. You may modify your copy or copies of the Program or any portion
 120  of it, thus forming a work based on the Program, and copy and
 121  distribute such modifications or work under the terms of Section 1
 122  above, provided that you also meet all of these conditions:
 123  
 124      a) You must cause the modified files to carry prominent notices
 125      stating that you changed the files and the date of any change.
 126  
 127      b) You must cause any work that you distribute or publish, that in
 128      whole or in part contains or is derived from the Program or any
 129      part thereof, to be licensed as a whole at no charge to all third
 130      parties under the terms of this License.
 131  
 132      c) If the modified program normally reads commands interactively
 133      when run, you must cause it, when started running for such
 134      interactive use in the most ordinary way, to print or display an
 135      announcement including an appropriate copyright notice and a
 136      notice that there is no warranty (or else, saying that you provide
 137      a warranty) and that users may redistribute the program under
 138      these conditions, and telling the user how to view a copy of this
 139      License.  (Exception: if the Program itself is interactive but
 140      does not normally print such an announcement, your work based on
 141      the Program is not required to print an announcement.)
 142  
 143  These requirements apply to the modified work as a whole.  If
 144  identifiable sections of that work are not derived from the Program,
 145  and can be reasonably considered independent and separate works in
 146  themselves, then this License, and its terms, do not apply to those
 147  sections when you distribute them as separate works.  But when you
 148  distribute the same sections as part of a whole which is a work based
 149  on the Program, the distribution of the whole must be on the terms of
 150  this License, whose permissions for other licensees extend to the
 151  entire whole, and thus to each and every part regardless of who wrote it.
 152  
 153  Thus, it is not the intent of this section to claim rights or contest
 154  your rights to work written entirely by you; rather, the intent is to
 155  exercise the right to control the distribution of derivative or
 156  collective works based on the Program.
 157  
 158  In addition, mere aggregation of another work not based on the Program
 159  with the Program (or with a work based on the Program) on a volume of
 160  a storage or distribution medium does not bring the other work under
 161  the scope of this License.
 162  
 163    3. You may copy and distribute the Program (or a work based on it,
 164  under Section 2) in object code or executable form under the terms of
 165  Sections 1 and 2 above provided that you also do one of the following:
 166  
 167      a) Accompany it with the complete corresponding machine-readable
 168      source code, which must be distributed under the terms of Sections
 169      1 and 2 above on a medium customarily used for software interchange; or,
 170  
 171      b) Accompany it with a written offer, valid for at least three
 172      years, to give any third party, for a charge no more than your
 173      cost of physically performing source distribution, a complete
 174      machine-readable copy of the corresponding source code, to be
 175      distributed under the terms of Sections 1 and 2 above on a medium
 176      customarily used for software interchange; or,
 177  
 178      c) Accompany it with the information you received as to the offer
 179      to distribute corresponding source code.  (This alternative is
 180      allowed only for noncommercial distribution and only if you
 181      received the program in object code or executable form with such
 182      an offer, in accord with Subsection b above.)
 183  
 184  The source code for a work means the preferred form of the work for
 185  making modifications to it.  For an executable work, complete source
 186  code means all the source code for all modules it contains, plus any
 187  associated interface definition files, plus the scripts used to
 188  control compilation and installation of the executable.  However, as a
 189  special exception, the source code distributed need not include
 190  anything that is normally distributed (in either source or binary
 191  form) with the major components (compiler, kernel, and so on) of the
 192  operating system on which the executable runs, unless that component
 193  itself accompanies the executable.
 194  
 195  If distribution of executable or object code is made by offering
 196  access to copy from a designated place, then offering equivalent
 197  access to copy the source code from the same place counts as
 198  distribution of the source code, even though third parties are not
 199  compelled to copy the source along with the object code.
 200  
 201    4. You may not copy, modify, sublicense, or distribute the Program
 202  except as expressly provided under this License.  Any attempt
 203  otherwise to copy, modify, sublicense or distribute the Program is
 204  void, and will automatically terminate your rights under this License.
 205  However, parties who have received copies, or rights, from you under
 206  this License will not have their licenses terminated so long as such
 207  parties remain in full compliance.
 208  
 209    5. You are not required to accept this License, since you have not
 210  signed it.  However, nothing else grants you permission to modify or
 211  distribute the Program or its derivative works.  These actions are
 212  prohibited by law if you do not accept this License.  Therefore, by
 213  modifying or distributing the Program (or any work based on the
 214  Program), you indicate your acceptance of this License to do so, and
 215  all its terms and conditions for copying, distributing or modifying
 216  the Program or works based on it.
 217  
 218    6. Each time you redistribute the Program (or any work based on the
 219  Program), the recipient automatically receives a license from the
 220  original licensor to copy, distribute or modify the Program subject to
 221  these terms and conditions.  You may not impose any further
 222  restrictions on the recipients' exercise of the rights granted herein.
 223  You are not responsible for enforcing compliance by third parties to
 224  this License.
 225  
 226    7. If, as a consequence of a court judgment or allegation of patent
 227  infringement or for any other reason (not limited to patent issues),
 228  conditions are imposed on you (whether by court order, agreement or
 229  otherwise) that contradict the conditions of this License, they do not
 230  excuse you from the conditions of this License.  If you cannot
 231  distribute so as to satisfy simultaneously your obligations under this
 232  License and any other pertinent obligations, then as a consequence you
 233  may not distribute the Program at all.  For example, if a patent
 234  license would not permit royalty-free redistribution of the Program by
 235  all those who receive copies directly or indirectly through you, then
 236  the only way you could satisfy both it and this License would be to
 237  refrain entirely from distribution of the Program.
 238  
 239  If any portion of this section is held invalid or unenforceable under
 240  any particular circumstance, the balance of the section is intended to
 241  apply and the section as a whole is intended to apply in other
 242  circumstances.
 243  
 244  It is not the purpose of this section to induce you to infringe any
 245  patents or other property right claims or to contest validity of any
 246  such claims; this section has the sole purpose of protecting the
 247  integrity of the free software distribution system, which is
 248  implemented by public license practices.  Many people have made
 249  generous contributions to the wide range of software distributed
 250  through that system in reliance on consistent application of that
 251  system; it is up to the author/donor to decide if he or she is willing
 252  to distribute software through any other system and a licensee cannot
 253  impose that choice.
 254  
 255  This section is intended to make thoroughly clear what is believed to
 256  be a consequence of the rest of this License.
 257  
 258    8. If the distribution and/or use of the Program is restricted in
 259  certain countries either by patents or by copyrighted interfaces, the
 260  original copyright holder who places the Program under this License
 261  may add an explicit geographical distribution limitation excluding
 262  those countries, so that distribution is permitted only in or among
 263  countries not thus excluded.  In such case, this License incorporates
 264  the limitation as if written in the body of this License.
 265  
 266    9. The Free Software Foundation may publish revised and/or new versions
 267  of the General Public License from time to time.  Such new versions will
 268  be similar in spirit to the present version, but may differ in detail to
 269  address new problems or concerns.
 270  
 271  Each version is given a distinguishing version number.  If the Program
 272  specifies a version number of this License which applies to it and "any
 273  later version", you have the option of following the terms and conditions
 274  either of that version or of any later version published by the Free
 275  Software Foundation.  If the Program does not specify a version number of
 276  this License, you may choose any version ever published by the Free Software
 277  Foundation.
 278  
 279    10. If you wish to incorporate parts of the Program into other free
 280  programs whose distribution conditions are different, write to the author
 281  to ask for permission.  For software which is copyrighted by the Free
 282  Software Foundation, write to the Free Software Foundation; we sometimes
 283  make exceptions for this.  Our decision will be guided by the two goals
 284  of preserving the free status of all derivatives of our free software and
 285  of promoting the sharing and reuse of software generally.
 286  
 287                  NO WARRANTY
 288  
 289    11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
 290  FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
 291  OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
 292  PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
 293  OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 294  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
 295  TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
 296  PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
 297  REPAIR OR CORRECTION.
 298  
 299    12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
 300  WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
 301  REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
 302  INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
 303  OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
 304  TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
 305  YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
 306  PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
 307  POSSIBILITY OF SUCH DAMAGES.
 308  
 309               END OF TERMS AND CONDITIONS
 310  
 311          How to Apply These Terms to Your New Programs
 312  
 313    If you develop a new program, and you want it to be of the greatest
 314  possible use to the public, the best way to achieve this is to make it
 315  free software which everyone can redistribute and change under these terms.
 316  
 317    To do so, attach the following notices to the program.  It is safest
 318  to attach them to the start of each source file to most effectively
 319  convey the exclusion of warranty; and each file should have at least
 320  the "copyright" line and a pointer to where the full notice is found.
 321  
 322      <one line to give the program's name and a brief idea of what it does.>
 323      Copyright (C) 19yy  <name of author>
 324  
 325      This program is free software; you can redistribute it and/or modify
 326      it under the terms of the GNU General Public License as published by
 327      the Free Software Foundation; either version 2 of the License, or
 328      (at your option) any later version.
 329  
 330      This program is distributed in the hope that it will be useful,
 331      but WITHOUT ANY WARRANTY; without even the implied warranty of
 332      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 333      GNU General Public License for more details.
 334  
 335      You should have received a copy of the GNU General Public License
 336      along with this program; if not, write to the Free Software
 337      Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA