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Get rid of the last remains of galileo

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Salvo 'LtWorf' Tomaselli 2013-12-27 00:47:48 +07:00
parent 556eecc118
commit c8d9e57a50
10 changed files with 36 additions and 29 deletions
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26
complexity
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Complexity
Abstract
Purpose of this document is to describe in a detailed way the
Purpose of this document is to describe in a detailed way the
complexity of relational algebra operations. The evaluation will be
done on the specific implementation of this program, not on theorical
lower limits.
Latest implementation can be found at:
http://galileo.dmi.unict.it/svn/trunk
https://github.com/ltworf/relational
Notation
Big O notation will be used. Constant values will be ignored.
Single letters will be used to indicate relations and letters between
| will indicate the cardinality (number of tuples) of the relation.
Number of tuples can't be enough. For example a relation with one
touple and thousands of fields, will not take O(1) in general to be
evaluated. So we assume that relations will have a reasonable and
comparable number of fields.
Then after evaluating the big O notation, an attempt to find more
precise results will be done, since it will be important to know
with a certain precision the weight of the operation.
@ -47,7 +47,7 @@ Notation
Then, the tuple is inserted in a new relation if it satisfies the
condition. Since no check on duplicated tuples is performed, this
operation is constant too.
In the end we have O(|n|) as complexity for a selection on the
relation n.
@ -57,9 +57,9 @@ Notation
containing the name of the fields.
The big issue is to copy the content of the relation into a new
relation object, so the new one can be modified.
So the operation depends on the size of the relation: O(|n|).
1.3 Projection
The projection operation creates a copy of the original relation
@ -69,7 +69,7 @@ Notation
allowed. So after extracting the wanted elements, it has to check if
the new tuple was already added to the new relation. And this brings
the complexity to O(|n|²).
But the projection can also be used to "rearrange" fields, which
makes no sense in pure relational algebra, but can be usefull to make
two relations match (in fact it is used internally to make relations
@ -84,7 +84,7 @@ Notation
in this section. Since we will deal with two relations per operation
here, we will call them m and n, and f and g will be the number of
their fields.
2.1 Product
Product is a very complex operations. It is O(|n|*|m|).
@ -120,7 +120,7 @@ Notation
join. Makes it O(|n|*|m|) too.
2.7 Outher_left
O(|n|*|m|), very depending on the number of the fields, because they
are compared.
@ -128,8 +128,8 @@ Notation
Mirror operation of outer_lef
2.9 Join
2.9 Join
Same as above.
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7
debian/changelog vendored
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relational (1.2-1) unstable; urgency=medium
* New upstream release
* Point to new upstream location
-- Salvo 'LtWorf' Tomaselli <tiposchi@tiscali.it> Fri, 27 Dec 2013 00:35:44 +0100
relational (1.1-1) unstable; urgency=low
* New upstream release

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debian/control vendored
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Maintainer: Salvo 'LtWorf' Tomaselli <tiposchi@tiscali.it>
Build-Depends: debhelper (>= 7.0.50~), python, python-support
Standards-Version: 3.9.2
Homepage: http://galileo.dmi.unict.it/wiki/relational/doku.php
Homepage: https://github.com/ltworf/relational/
Package: python-relational
Architecture: all

2
debian/copyright vendored
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Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Author: Salvo "LtWorf" Tomaselli <tiposchi@tiscali.it>
Source: http://galileo.dmi.unict.it/wiki/relational/doku.php
Source: https://github.com/ltworf/relational
Files: *
Copyright: © 2008 Salvo "LtWorf" Tomaselli <tiposchi@tiscali.it>

2
debian/watch vendored
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version=3
opts=filenamemangle=s/.*:// http://galileo.dmi.unict.it/wiki/relational/doku.php?id=download /wiki/[^:]*:relational_([^(_mac)]*).tar.gz
opts=filenamemangle=s/.+\/v?(\d\S*)\.tar\.gz/relational-$1\.tar\.gz/ https://github.com/ltworf/relational/tags .*/v?(\d\S*)\.tar\.gz

2
relational/parser.py
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# BinaryOp := * | - | ᑌ | ᑎ | ÷ | ᐅᐊ | ᐅLEFTᐊ | ᐅRIGHTᐊ | ᐅFULLᐊ
#
# Language definition here:
# https://galileo.dmi.unict.it/wiki/relational/doku.php?id=language
# https://github.com/ltworf/relational/wiki/Grammar-and-language
import re
import rtypes

2
relational_gui.py
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@ -38,7 +38,7 @@ def printver(exit=True):
print
print "Written by Salvo 'LtWorf' Tomaselli <tiposchi@tiscali.it>"
print
print "http://galileo.dmi.unict.it/wiki/relational/"
print "https://github.com/ltworf/relational/"
if exit:
sys.exit(0)

2
relational_gui/surveyForm.py
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@ -30,7 +30,7 @@ import locale
class surveyForm (QtGui.QWidget):
'''This class is the form used for the survey, needed to intercept the events.
It also sends the data with http POST to a page hosted on galileo'''
It also sends the data with http POST to a page'''
def setUi(self, ui):
self.ui = ui

12
setup/installer_common.py
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# -*- coding: utf-8 -*-
# Relational
# Copyright (C) 2008 Salvo "LtWorf" Tomaselli
#
#
# Relational is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
#
# author Salvo "LtWorf" Tomaselli <tiposchi@tiscali.it>
from distutils.core import setup
@ -28,6 +28,6 @@ def c_setup(name):
author_email='tiposchi@tiscali.it',
maintainer="Salvo 'LtWorf' Tomaselli",
maintainer_email='tiposchi@tiscali.it',
url='http://galileo.dmi.unict.it/wiki/relational/',
url='https://github.com/ltworf/relational',
license='GPL3',
)
)

8
windows/ss.iss
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@ -9,9 +9,9 @@ AppId={{6F127615-6AD4-4BD7-8135-2444A335B5CD}
AppName=Relational
AppVerName=Relational ver. 1.2
AppPublisher=Salvo 'LtWorf' Tomaselli
AppPublisherURL=http://galileo.dmi.unict.it/wiki/relational/
AppSupportURL=http://galileo.dmi.unict.it/wiki/relational/
AppUpdatesURL=http://galileo.dmi.unict.it/wiki/relational/
AppPublisherURL=https://github.com/ltworf/relational
AppSupportURL=https://github.com/ltworf/relational
AppUpdatesURL=https://github.com/ltworf/relational
DefaultDirName={pf}\Relational
DefaultGroupName=Relational
AllowNoIcons=yes
@ -37,7 +37,7 @@ Source: "samples\*"; DestDir: "{app}"; Flags: ignoreversion recursesubdirs creat
[Icons]
Name: "{group}\Relational"; Filename: "{app}\relational_gui.exe"
Name: "{group}\{cm:ProgramOnTheWeb,Relational}"; Filename: "http://galileo.dmi.unict.it/wiki/relational/"
Name: "{group}\{cm:ProgramOnTheWeb,Relational}"; Filename: "https://github.com/ltworf/relational"
Name: "{group}\{cm:UninstallProgram,Relational}"; Filename: "{uninstallexe}"
Name: "{commondesktop}\Relational"; Filename: "{app}\relational_gui.exe"; Tasks: desktopicon
Name: "{userappdata}\Microsoft\Internet Explorer\Quick Launch\Relational"; Filename: "{app}\relational_gui.exe"; Tasks: quicklaunchicon