compatibility.c File Reference

Backport implementations for missing PostgreSQL API functions. More...

#include "compatibility.h"

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Functions
List *	list_insert_nth (List *list, int pos, void *datum)
	Insert datum at position pos in list (PG < 13 backport).

Detailed Description

Backport implementations for missing PostgreSQL API functions.

Provides implementations of functions that do not exist in older PostgreSQL versions but are declared in compatibility.h.

Currently provides:

• list_insert_nth() for PostgreSQL < 13, where the linked-list-based List implementation did not include this helper.

Definition in file compatibility.c.

Function Documentation

list_insert_nth()

List * list_insert_nth	(	List *	list,
		int	pos,
		void *	datum
	)

Insert datum at position pos in list (PG < 13 backport).

PostgreSQL 13 introduced list_insert_nth() when lists were reimplemented as arrays. This declaration provides the same function for older PostgreSQL versions; the implementation lives in compatibility.c.

Parameters

list	The list to insert into (may be NIL).
pos	Zero-based index at which to insert the new element.
datum	The value to insert.

Returns

The (possibly reallocated) list.

Definition at line 15 of file compatibility.c.

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