The unique or primary key of the table. Type: string File

protected TableSortExtender::getQueryParameters()

Array of fields to update to an expression in case of a duplicate record. This variable is a nested array in the following format:

public Select::havingIsNotNull($field) Sets

Query extender class for tablesort queries. Hierarchy class \Drupal\Core\Database\Query\

General class for an abstracted "Upsert" (UPDATE or INSERT) query operation. This class can only be used with a table with a single unique index

public SelectExtender::addExpression($expression, $alias = NULL

public Select::addJoin($type, $table, $alias = NULL, $condition = NULL, $arguments

An array of fields which should be set to their database-defined defaults. Used on INSERT. Type:

public Select::union(SelectInterface $query, $type = '')