english/libraries/joomla/database/databasequery.php
/**
	 * Adds a column, or array of column names that would be used for an INSERT INTO statement.
	 *
	 * @param   mixed  $columns  A column name, or array of column names.
	 *
	 * @return  JDatabaseQuerySQLAzure  Returns this object to allow chaining.
	 *
	 * @since   11.1
	 */
Adds a column, or array of column names that would be used for an INSERT INTO statement.
@param   mixed  $columns  A column name, or array of column names.

@return  JDatabaseQuerySQLAzure  Returns this object to allow chaining.


Adds a column or array of column names that would be used for an INSERT INTO statement . @param mixed $columns A column name or array of column names . @return JDatabaseQuerySQLAzure Returns this object to allow chaining .
function columns($columns)
	{
		if (is_null($this->columns)) {
			$this->columns = new JDatabaseQueryElement('()', $columns);
		}
		else {
			$this->columns->append($columns);
		}
		return $this;
	}
function columns ( $ columns ) { if ( is_null ( $ this -> columns ) ) { $ this -> columns = new JDatabaseQueryElement ( '()' , $ columns ) ; } else { $ this -> columns -> append ( $ columns ) ; } return $ this ; }
Adds a column, or array of column names that would be used for an INSERT INTO statement.
Adds a column or array of column names that would be used for an INSERT INTO statement .