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Command: sqlite3_overload_function | Section: 3 | Source: NetBSD | File: sqlite3_overload_function.3
SQLITE3_OVERLOAD_FUNCTION(3) FreeBSD Library Functions Manual
NAME
sqlite3_overload_function - Overload A Function For A Virtual Table
SYNOPSIS
int
sqlite3_overload_function(sqlite3*, const char *zFuncName, int nArg);
DESCRIPTION
Virtual tables can provide alternative implementations of functions using
the xFindFunction method of the virtual table module. But global
versions of those functions must exist in order to be overloaded.
This API makes sure a global version of a function with a particular name
and number of parameters exists. If no such function exists before this
API is called, a new function is created. The implementation of the new
function always causes an exception to be thrown. So the new function is
not good for anything by itself. Its only purpose is to be a placeholder
function that can be overloaded by a virtual table.
SEE ALSO
sqlite3_module(3)
FreeBSD 14.1-RELEASE-p8 December 19, 2018 FreeBSD 14.1-RELEASE-p8