a8426840da
Disable all optimizations for now
...
They are in need of a refactor
2020-06-09 02:06:57 +07:00
d4002e117b
CHANGELOG
2017-08-18 08:37:47 +07:00
0778be30a1
Forbid using python keywords as names
...
closes #4
2017-05-13 00:21:18 +07:00
d61bfafe5c
Do not send survey in case of swearwords
...
I'm getting tired of kids blaming their idiocy on me.
They can go begging for money, for all I care.
2017-05-13 00:21:10 +07:00
6014618f2d
Prepare for next release
2016-08-23 20:56:44 +07:00
ae042a7ae4
"save" will act on the relation selected in the list
...
It used to act on the active relation, that is, the one being displayed
in the central table, that is selected with a double click.
This change makes it act on the relation directly selected instead.
It should be more intuitive.
2016-08-21 10:53:26 +07:00
8d8db2ac0c
CHANGELOG
2016-08-20 15:20:34 +07:00
cba34cca2c
CHANGELOG
2016-05-25 15:30:15 +07:00
722b164d56
Fix Python code generator to correctly escape strings
...
A string that contained escape symbols was not correctly escaped
when generating the Python code for the selection.
This could cause selection operations to fail to compile.
2016-04-23 15:19:32 +07:00
4d1b610605
Correct optimization over selection and product
2016-04-19 17:47:36 +07:00
eb6a033298
CHANGELOG
2016-04-15 15:00:31 +07:00
a5aef4a0fe
CHANGELOG
2016-04-15 14:45:33 +07:00
cc6dfca64c
Prepare for new version
2016-04-10 08:52:22 +07:00
457899bc1b
CHANGELOG
2016-04-09 11:40:02 +07:00
1b049e13f0
Better handling of parenthesis inside string literals
...
When scanning for the matching parenthesis, string literals
were not taken into account, which would inevitably lead to
errors if one wanted to do a selection on a string containing
a parenthesis.
Now it uses a state-machine to skip the ones that are located
inside literals.
2016-04-09 11:37:28 +07:00
e4e3eae8ce
CHANGELOG
2016-04-09 10:09:08 +07:00
3139031611
CHANGELOG
2016-03-31 21:46:00 +07:00
f19d6c9e5f
Prepare for next version
2016-03-02 00:31:31 +07:00
6f61d51b3a
changelog
2016-03-02 00:13:04 +07:00
262d92290f
Prepare for next version
...
Change the version string everywhere, for the next release
2016-01-06 00:30:10 +07:00
3b3888e9be
New optimization
...
Turns
π a,b,c(A) ∪ π a,b,c(B)
into
π a,b,c(A ∪ B)
if A and B are union compatible
Works with union, intersection and difference.
2016-01-03 10:07:23 +07:00
faf636f61d
Changelog
2016-01-02 16:26:09 +07:00
53b158d25e
Changes
2016-01-02 12:37:20 +07:00
c795acad97
s/outher join/outer join/
2015-12-31 18:10:52 +07:00
7acc0d19d0
Changed the blur thing with a simple label
...
It was a bit buggy and was not blurring all the widgets, or
not reverting the blur properly. Probably best to just show a
label instead.
Still, the proper solution would probably be to do the processing
in a separate thread.
2015-12-31 18:07:23 +07:00
950a2273c3
New query optimization
...
A * B ∪ A * C = A * (B ∪ C)
2015-12-31 14:26:28 +07:00
239e0e58dd
Blurs UI while processing
...
Before the processing of a query starts, it will blur the UI.
This gives feedback to the user that something is happening, and is
simple to implement because I am too lazy to move the processing in
a separate thread.
2015-12-21 00:54:05 +07:00
7f08ca9133
Ctrl+C in the terminal, will kill the GUI
...
It will abruptly kill, so settings will not be
saved.
2015-10-09 11:33:19 +07:00
0d9d5114bd
changelog
2015-10-09 11:31:52 +07:00
a9daf8544c
Prepare for next release
2015-09-15 01:58:17 +07:00
0f4cc1ab94
Changelog
...
Move the impressive stuff up
2015-09-11 12:42:18 +07:00
d597076038
Subtle bug that occurred selecting after a join
...
Outer joins add the placeholder '---' that is used as some sort of NULL
value.
However select operations on such relations would always fail, because
relations are supposed to only contain values of class rstring, and
the placeholder was added as a regular string.
As a consequence, automatic casting would always fail, and the select
would always raise an exception.
Added a new test case with this specific case in mind.
2015-09-10 12:19:51 +07:00
df5ff35aa9
Changelog
2015-09-09 17:33:15 +07:00
9ea5e32563
changelog
2015-08-03 16:01:10 +07:00
5a9c2f23a5
Changelog
2015-07-14 15:43:41 +07:00
494469e10c
Changelog
2015-07-09 22:39:33 +07:00
5552923633
Prepare for version 2.1
2015-06-13 17:34:13 +07:00
c0132ef9df
New changelog entries
2015-06-02 15:40:11 +07:00
c345c1e521
Added new changes in CHANGELOG
2015-06-01 08:42:40 +07:00
8cb08ad030
Change relational language to use math symbols
...
The symbols previously used were a Canadian script, and were looking
good enough, but they might not be installed in every machine.
Besides, all this is to workaround a Qt5 bug that prevents from
rendering those symbols at times.
2015-05-31 19:01:03 +07:00
fd4677be00
Mention the language switch
2015-02-19 12:58:36 +07:00
da4c549ea0
Drop support for PySide
...
It's no longer developed and I'm moving to Qt5 which
is not supported
2015-02-18 17:53:02 +07:00
8321232484
Fix bug in relational-cli that made it crash when an exception was raised
2014-01-11 12:27:16 +07:00
be0d95b838
Prepare for new version
2014-01-11 12:21:41 +07:00
c12c51dab9
Removed support for pyside
2013-12-27 00:56:57 +07:00
5e4a703f56
New way of checking for new versions
2013-12-27 00:16:12 +07:00
3978259f4a
- improved an optimization, to produce a simpler select condition under certain circumstances
...
git-svn-id: http://galileo.dmi.unict.it/svn/relational/trunk@343 014f5005-505e-4b48-8d0a-63407b615a7c
2011-11-07 19:01:33 +07:00
0986da8db7
- parser gives more indicative errors
...
- changed two "range" into xrange
git-svn-id: http://galileo.dmi.unict.it/svn/relational/trunk@340 014f5005-505e-4b48-8d0a-63407b615a7c
2011-11-01 19:29:55 +07:00
48bde3ea84
- Improved tokenizer
...
- GUI shows unicode errors (i really can't wait for debian to have pyqt in python 3)
git-svn-id: http://galileo.dmi.unict.it/svn/relational/trunk@339 014f5005-505e-4b48-8d0a-63407b615a7c
2011-11-01 18:47:03 +07:00
cdd771462d
- command line interface using new API
...
git-svn-id: http://galileo.dmi.unict.it/svn/relational/trunk@333 014f5005-505e-4b48-8d0a-63407b615a7c
2011-10-17 21:26:01 +07:00
Salvo 'LtWorf' Tomaselli
LtWorf