This section describes functions and operators for examining and
manipulating values of type bytea
.
SQL defines some string functions with a special syntax where certain key words rather than commas are used to separate the arguments. Details are in Table 9.8, “SQL Binary String Functions and Operators”. Some functions are also implemented using the regular syntax for function invocation. (See Table 9.9, “Other Binary String Functions”.)
Table 9.8. SQL Binary String Functions and Operators
Additional binary string manipulation functions are available and are listed in Table 9.9, “Other Binary String Functions”. Some of them are used internally to implement the SQL-standard string functions listed in Table 9.8, “SQL Binary String Functions and Operators”.
Table 9.9. Other Binary String Functions