protected function Schema::createPrimaryKeySql
protected Schema::createPrimaryKeySql($fields)
Create the SQL expression for primary keys.
Postgresql does not support key length. It does support fillfactor, but that requires a separate database lookup for each column in the key. The key length defined in the schema is ignored.
File
- core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php, line 427
Class
- Schema
- PostgreSQL implementation of \Drupal\Core\Database\Schema.
Namespace
Drupal\Core\Database\Driver\pgsqlCode
protected function createPrimaryKeySql($fields) { $return = array(); foreach ($fields as $field) { if (is_array($field)) { $return[] = '"' . $field[0] . '"'; } else { $return[] = '"' . $field . '"'; } } return implode(', ', $return); }
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https://api.drupal.org/api/drupal/core!lib!Drupal!Core!Database!Driver!pgsql!Schema.php/function/Schema::createPrimaryKeySql/8.1.x