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function _db_create_key_sql in Drupal 6

Same name in this branch

6 includes/database.mysql-common.inc \_db_create_key_sql()
6 includes/database.pgsql.inc \_db_create_key_sql()

Related topics

Schema API: A Drupal schema definition is an array structure representing one or more tables and their related keys and indexes. A schema is defined by hook_schema(), which usually lives in a modulename.install file.

5 calls to _db_create_key_sql()

db_add_index in includes/database.mysql-common.inc: Add an index.
db_add_primary_key in includes/database.mysql-common.inc: Add a primary key.
db_add_unique_key in includes/database.mysql-common.inc: Add a unique key.
_db_create_index_sql in includes/database.pgsql.inc
_db_create_keys_sql in includes/database.mysql-common.inc

File

includes/database.pgsql.inc, line 528: Database interface code for PostgreSQL database servers.

Code

function _db_create_key_sql($fields) {
  $ret = array();
  foreach ($fields as $field) {
    if (is_array($field)) {
      $ret[] = 'substr(' . $field[0] . ', 1, ' . $field[1] . ')';
    }
    else {
      $ret[] = $field;
    }
  }
  return implode(', ', $ret);
}