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SIGSEGV on Addition of JOIN to existing query #3525

SilverNexus opened this issue May 12, 2019 · 0 comments


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commented May 12, 2019


If you load an existing query into the SQL Editor, say to make a view similar to one you already have, and then try to add a join to an existing subquery by typing it in where it goes in the query, SQLite Studio throws a SIGSEGV in the QString destructor.


Stack trace from gdb:
#0 0x0000000000407d43 in QString::~QString() ()
#1 0x00007ffff79b4cb6 in yy_reduce(yyParser*, int) ()
from /home/dan/Downloads/SQLiteStudio/lib/
#2 0x00007ffff79b5bee in sqlite3_parse(void*, int, Token*, ParserContext*) ()
from /home/dan/Downloads/SQLiteStudio/lib/
#3 0x00007ffff79bb141 in Parser::parseInternal(QString const&, bool) ()
from /home/dan/Downloads/SQLiteStudio/lib/
#4 0x00007ffff7369247 in SqlEditor::parseContents() ()
from /home/dan/Downloads/SQLiteStudio/lib/
#5 0x00007ffff6184bc9 in QMetaObject::activate(QObject*, int, int, void**) ()
from /home/dan/Downloads/SQLiteStudio/lib/
#6 0x00007ffff6184ef6 in QMetaObject::activate(QObject*, int, int, void**) ()
from /home/dan/Downloads/SQLiteStudio/lib/
#7 0x00007ffff61913e7 in QTimer::timeout(QTimer::QPrivateSignal) ()
from /home/dan/Downloads/SQLiteStudio/lib/
#8 0x00007ffff61916b8 in QTimer::timerEvent(QTimerEvent*) ()
from /home/dan/Downloads/SQLiteStudio/lib/
#9 0x00007ffff6185adb in QObject::event(QEvent*) ()
from /home/dan/Downloads/SQLiteStudio/lib/
#10 0x00007ffff6b1854c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /home/dan/Downloads/SQLiteStudio/lib/
#11 0x00007ffff6b1f897 in QApplication::notify(QObject*, QEvent*) ()
from /home/dan/Downloads/SQLiteStudio/lib/
---Type to continue, or q to quit---
#12 0x00007ffff61599f8 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /home/dan/Downloads/SQLiteStudio/lib/
#13 0x00007ffff61ad08e in QTimerInfoList::activateTimers() ()
from /home/dan/Downloads/SQLiteStudio/lib/
#14 0x00007ffff61ad8a9 in ?? ()
from /home/dan/Downloads/SQLiteStudio/lib/
#15 0x00007ffff1261417 in g_main_context_dispatch ()
from /usr/lib/x86_64-linux-gnu/
#16 0x00007ffff1261650 in ?? () from /usr/lib/x86_64-linux-gnu/
#17 0x00007ffff12616dc in g_main_context_iteration ()
from /usr/lib/x86_64-linux-gnu/
#18 0x00007ffff61adbaf in QEventDispatcherGlib::processEvents(QFlagsQEventLoop::ProcessEventsFlag) ()
from /home/dan/Downloads/SQLiteStudio/lib/
#19 0x00007fffef8599a1 in ?? ()
from /home/dan/Downloads/SQLiteStudio/platforms/../lib/
#20 0x00007ffff615826a in QEventLoop::exec(QFlagsQEventLoop::ProcessEventsFlag) () from /home/dan/Downloads/SQLiteStudio/lib/
#21 0x00007ffff6160da4 in QCoreApplication::exec() ()
from /home/dan/Downloads/SQLiteStudio/lib/
#22 0x0000000000405e65 in main ()

Steps to reproduce

Take an existing query with a subquery and load it into the SQL Editor. Attempt to add a join to the subquery by typing it after any existing joins in the subquery. SQLite Studio crashes.

Note that I only have thus far tested changes in subqueries, rather than the outermost query. I will update when I gather additional information on this.

Operating system

Linux Mint 19

SQLiteStudio version


@pawelsalawa pawelsalawa added the bug label May 12, 2019

@pawelsalawa pawelsalawa added this to the 3.2.2 milestone May 12, 2019

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