function db_drop_primary_key

Same name in other branches
  1. 8.9.x core/includes/database.inc \db_drop_primary_key()

Drops the primary key of a database table.

Parameters

$table: Name of the table to be altered.

Related topics

Schema API
API to handle database schemas.
8 calls to db_drop_primary_key()
field_sql_storage_update_7001 in modules/field/modules/field_sql_storage/field_sql_storage.install
Remove the field_config_entity_type table and store 'entity_type' strings.
field_sql_storage_update_7002 in modules/field/modules/field_sql_storage/field_sql_storage.install
Fix primary keys in field revision data tables.
node_update_7016 in modules/node/node.install
Change {history}.nid to an unsigned int in order to match {node}.nid.
system_update_7065 in modules/system/system.install
Remove the default value for sid.
system_update_7086 in modules/system/system.install
Prepare the schema and data of the sessions table for hashed session ids.

... See full list

File

includes/database/database.inc, line 3036

Code

function db_drop_primary_key($table) {
    return Database::getConnection()->schema()
        ->dropPrimaryKey($table);
}

Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.