public function Schema::dropPrimaryKey
public Schema::dropPrimaryKey($table)
Drop the primary key.
Parameters
$table: The table to be altered.
Return value
TRUE if the primary key was successfully dropped, FALSE if there was no primary key on this table to begin with.
Overrides Schema::dropPrimaryKey
File
- core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php, line 627
Class
- Schema
- PostgreSQL implementation of \Drupal\Core\Database\Schema.
Namespace
Drupal\Core\Database\Driver\pgsqlCode
public function dropPrimaryKey($table) { if (!$this->constraintExists($table, 'pkey')) { return FALSE; } $this->connection->query('ALTER TABLE {' . $table . '} DROP CONSTRAINT ' . $this->ensureIdentifiersLength($table, '', 'pkey')); $this->resetTableInformation($table); return TRUE; }
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https://api.drupal.org/api/drupal/core!lib!Drupal!Core!Database!Driver!pgsql!Schema.php/function/Schema::dropPrimaryKey/8.1.x