https://bugzilla.wikimedia.org/show_bug.cgi?id=54076

       Web browser: ---
            Bug ID: 54076
           Summary: Database error when installing Flow
           Product: MediaWiki extensions
           Version: unspecified
          Hardware: All
                OS: All
            Status: NEW
          Severity: critical
          Priority: Unprioritized
         Component: Flow
          Assignee: [email protected]
          Reporter: [email protected]
                CC: [email protected], [email protected]
    Classification: Unclassified
   Mobile Platform: ---

I tried to install Flow in a wiki running 1.21.1 and there where critical
problems when running the upgrade script. Perhaps others want to check in
1.21.2 or 1.22.*?

Running the script the first time ("espiral_b" is the name of the database, the
actual server paths are being cut here just in case):

Creating flow_revision table ...
An error occurred:
A database query syntax error has occurred.
The last attempted database query was:
"CREATE UNIQUE INDEX flow_definition_unique_name ON flow_definition 
(definition_wiki, definition_name)
"
from within function "DatabaseBase::sourceFile( 
.../extensions/Flow/flow.sql )".
Database returned error "1146: Table 'espiral_b.flow_definition' doesn't 
exist (localhost)"
Backtrace:
#0 
.../includes/db/Database.php(983): 
DatabaseBase->reportQueryError('Table 'espiral_...', 1146, 'CREATE 
UNIQUE I...', 'DatabaseBase::s...', false)
#1 
.../includes/db/Database.php(3409): DatabaseBase->query('CREATE 
UNIQUE I...', 'DatabaseBase::s...')
#2 
.../includes/db/Database.php(3322): DatabaseBase->sourceStream(Resource 
id #345, false, false, 'DatabaseBase::s...', false)
#3 
.../includes/installer/DatabaseUpdater.php(639): 
DatabaseBase->sourceFile('/srv/data/web/v...')
#4 
.../includes/installer/DatabaseUpdater.php(661): 
DatabaseUpdater->applyPatch('/srv/data/web/v...', true, 'Creating 
flow_r...')
#5 [internal function]: DatabaseUpdater->addTable('flow_revision', 
'/srv/data/web/v...', true)
#6 
.../includes/installer/DatabaseUpdater.php(435): 
call_user_func_array(Array, Array)
#7 
.../includes/installer/DatabaseUpdater.php(391): 
DatabaseUpdater->runUpdates(Array, true)
#8 
.../includes/installer/DatabaseInstaller.php(274): 
DatabaseUpdater->doUpdates()
#9 
.../includes/installer/WebInstallerPage.php(552): 
DatabaseInstaller->doUpgrade()
#10 
.../includes/installer/WebInstaller.php(270): 
WebInstaller_Upgrade->execute()
#11 .../mw-config/index.php(65): 
WebInstaller->execute(Array)
#12 .../mw-config/index.php(33): 
wfInstallerMain()
#13 {main}
Purging caches...done.

Then, running the upgrade script a second time without changing anything:


Creating flow_revision table ...
An error occurred:
A database query syntax error has occurred.
The last attempted database query was:
"CREATE TABLE `espiral_bflow_definition` (
  definition_id binary(16) NOT NULL,
  definition_wiki varchar(32) binary NOT NULL,
  definition_name varchar(32) binary NOT NULL,
  definition_type varchar(32) binary NOT NULL,
  definition_options BLOB NULL, -- should instead be revisioned blob
  PRIMARY KEY (definition_id)
  ) ENGINE=InnoDB, DEFAULT CHARSET=binary
"
from within function "DatabaseBase::sourceFile( 
.../extensions/Flow/flow.sql )".
Database returned error "1050: Table 'espiral_bflow_definition' already 
exists (localhost)"
Backtrace:
#0 
.../includes/db/Database.php(983): 
DatabaseBase->reportQueryError('Table 'espiral_...', 1050, 'CREATE TABLE 
`e...', 'DatabaseBase::s...', false)
#1 
.../includes/db/Database.php(3409): DatabaseBase->query('CREATE 
TABLE `e...', 'DatabaseBase::s...')
#2 
.../includes/db/Database.php(3322): DatabaseBase->sourceStream(Resource 
id #345, false, false, 'DatabaseBase::s...', false)
#3 
.../includes/installer/DatabaseUpdater.php(639): 
DatabaseBase->sourceFile('/srv/data/web/v...')
#4 
.../includes/installer/DatabaseUpdater.php(661): 
DatabaseUpdater->applyPatch('/srv/data/web/v...', true, 'Creating 
flow_r...')
#5 [internal function]: DatabaseUpdater->addTable('flow_revision', 
'/srv/data/web/v...', true)
#6 
.../includes/installer/DatabaseUpdater.php(435): 
call_user_func_array(Array, Array)
#7 
.../includes/installer/DatabaseUpdater.php(391): 
DatabaseUpdater->runUpdates(Array, true)
#8 
.../includes/installer/DatabaseInstaller.php(274): 
DatabaseUpdater->doUpdates()
#9 
.../b/includes/installer/WebInstallerPage.php(552): 
DatabaseInstaller->doUpgrade()
#10 
.../includes/installer/WebInstaller.php(270): 
WebInstaller_Upgrade->execute()
#11 .../mw-config/index.php(65): 
WebInstaller->execute(Array)
#12 .../mw-config/index.php(33): 
wfInstallerMain()
#13 {main}
Purging caches...done.


After this the extension appears as installed in Special:Version but it's not
functional.

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