function db_column_exists in Drupal 6

Same name in this branch

1. 6 includes/database.mysqli.inc \db_column_exists()
2. 6 includes/database.mysql.inc \db_column_exists()
3. 6 includes/database.pgsql.inc \db_column_exists()

Check if a column exists in the given table.

Parameters

$table: The name of the table.

$column: The name of the column.

Return value

TRUE if the column exists, and FALSE if the column does not exist.

Related topics

1 call to db_column_exists()

system_update_6051 in modules/system/system.install

Create a signature_format column.

File

includes/database.pgsql.inc, line 407

Database interface code for PostgreSQL database servers.

Code

function db_column_exists($table, $column) {
  return (bool) db_result(db_query("SELECT COUNT(pg_attribute.attname) FROM pg_class, pg_attribute WHERE pg_attribute.attrelid = pg_class.oid AND pg_class.relname = '{" . db_escape_table($table) . "}' AND attname = '" . db_escape_table($column) . "'"));
}