public TableMappingInterface::getExtraColumns($table_name)
Gets a list of extra database columns, which store denormalized data.
These database columns do not belong to any entity fields. Any normalized data that is stored should be associated with an entity field.
Parameters
string $table_name: The name of the table to return the columns for.
Return value
string[] An array of column names for the given table.
File
- core/lib/Drupal/Core/Entity/Sql/TableMappingInterface.php, line 87
Class
- TableMappingInterface
- Provides a common interface for mapping field columns to SQL tables.
Namespace
Drupal\Core\Entity\Sql
Code
public function getExtraColumns($table_name);
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