Identifiers are used to refer to objects exposed by the driver, such as tables, columns, or caches. The driver supports both unquoted and quoted identifiers for naming objects. An unquoted identifier must start with an ASCII alpha character and can be followed by zero or more ASCII alpha or numeric characters.
Quoted identifiers must be enclosed in backticks (``). A quoted identifier can contain any Unicode character, including the space character, and is case-sensitive. The Google BigQuery driver recognizes the Unicode escape sequence \uxxxx as a Unicode character.
The maximum length of both quoted and unquoted identifiers is 1024 characters.
