public Merge::execute() Runs the query
public Merge::expression($field, $expression, array $arguments = NULL)
Returned by execute() if an UPDATE query has been executed. File core/lib/Drupal/Core/Database/Query/Merge
The table or subquery to be used for the condition. File core/lib/Drupal/Core/Database/Query/Merge.php
Returned by execute() if an INSERT query has been executed. File core/lib/Drupal/Core/Database/Query/Merge
public Merge::updateFields(array $fields) Adds
An array of fields on which to insert. Type:
public Merge::__toString() Implements
An array of values to be inserted. Type: string File
Flag indicating whether an UPDATE is necessary. Type: bool File
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