unicode_version() — PostgreSQL built-in function
unicode_version(): Unicode version used by Postgres. PostgreSQL miscellaneous functions — signature, volatility, version applicability and an illustrative example.
Function Category: Miscellaneous Functions
unique_key_recheck() — PostgreSQL built-in function
unique_key_recheck(): deferred UNIQUE constraint check. PostgreSQL miscellaneous functions — signature, volatility, version applicability and an illustrative example.
version() — PostgreSQL built-in function
version(): PostgreSQL version string. PostgreSQL miscellaneous functions — signature, volatility, version applicability and an illustrative example.
xmlcomment() — PostgreSQL built-in function
xmlcomment(): generate XML comment. PostgreSQL miscellaneous functions — signature, volatility, version applicability and an illustrative example.
xmlconcat2() — PostgreSQL built-in function
xmlconcat2(): aggregate transition function. PostgreSQL miscellaneous functions — signature, volatility, version applicability and an illustrative example.