In function eZURLAliasML::setLangMaskAlwaysAvailable() In some cases $actionName could be an array but empty.
So transaction error will appear due to wrong SQL like

UPDATE ezurlalias_ml SET lang_mask = cast ( lang_mask | 1 AS SIGNED ) WHERE action in () AND cast( lang_mask & 2 ) > 0

It can happened while installing list of objects from a package.
Simplified backtrace:
0. <handler calls are skipped> ...

1. eZContentObject::unserialize() is called

2. eZContentObjectVersion::unserialize() is called in eZContentObject::unserialize()

3. eZContentObjectTreeNode::unserialize() is called in eZContentObjectVersion::unserialize()
If there is parent node remote id ($parentNodeRemoteID) and could not fetch node by this remote id (It means parent node is not installed yet),
$parentNodeID will be '-1', so current node, we tried to install, goes to suspended-nodes and will be installed later (after installing of parent node).
$nodeList is not changed and is still empty!

4. eZOperationHandler::execute( 'content', 'publish', array(...) ) is called in eZContentObject::unserialize()

5. eZContentOperationCollection::setObjectStatusPublished() is called in eZModuleOperationInfo::executeClassMethod()

There is a check for $objectIsAlwaysAvailable

if ( $objectIsAlwaysAvailable )
{
    $initialLanguageID = $object->attribute( 'initial_language_id' );
    $object->setAlwaysAvailableLanguageID( $initialLanguageID );
}

If object is not always available it will be imported correctly, because $object->setAlwaysAvailableLanguageID() will not be called.
If so,

6. eZContentObject::setAlwaysAvailableLanguageID() is called in eZContentOperationCollection::setObjectStatusPublished()

There is a code

$nodeRows = eZContentObjectTreeNode::fetchByContentObjectID( $objectID, false );
$actions = array();
foreach ( $nodeRows as $nodeRow )
{
    $nodeID = (int)$nodeRow['node_id'];
    $actions[] = array( 'eznode', $nodeID );
}

eZURLAliasML::setLangMaskAlwaysAvailable( $languageID, $actions, null );

As we remember there is no node for $objectID, due to it was suspended for later importing. Thus $actions will be empty and we will get transaction error in eZURLAliasML::setLangMaskAlwaysAvailable()