1 files changed, 0 insertions, 143 deletions
diff --git a/src/backend/access/index/amapi.c b/src/backend/access/index/amapi.c
deleted file mode 100644
index 450a7dce1fc..00000000000
--- a/src/backend/access/index/amapi.c
+++ /dev/null
@@ -1,143 +0,0 @@
-/*-------------------------------------------------------------------------
- *
- * amapi.c
- *	  Support routines for API for Postgres index access methods.
- *
- * Copyright (c) 2015-2019, PostgreSQL Global Development Group
- *
- *
- * IDENTIFICATION
- *	  src/backend/access/index/amapi.c
- *
- *-------------------------------------------------------------------------
- */
-#include "postgres.h"
-
-#include "access/amapi.h"
-#include "access/htup_details.h"
-#include "catalog/pg_am.h"
-#include "catalog/pg_opclass.h"
-#include "utils/builtins.h"
-#include "utils/syscache.h"
-
-
-/*
- * GetIndexAmRoutine - call the specified access method handler routine to get
- * its IndexAmRoutine struct, which will be palloc'd in the caller's context.
- *
- * Note that if the amhandler function is built-in, this will not involve
- * any catalog access.  It's therefore safe to use this while bootstrapping
- * indexes for the system catalogs.  relcache.c relies on that.
- */
-IndexAmRoutine *
-GetIndexAmRoutine(Oid amhandler)
-{
-	Datum		datum;
-	IndexAmRoutine *routine;
-
-	datum = OidFunctionCall0(amhandler);
-	routine = (IndexAmRoutine *) DatumGetPointer(datum);
-
-	if (routine == NULL || !IsA(routine, IndexAmRoutine))
-		elog(ERROR, "index access method handler function %u did not return an IndexAmRoutine struct",
-			 amhandler);
-
-	return routine;
-}
-
-/*
- * GetIndexAmRoutineByAmId - look up the handler of the index access method
- * with the given OID, and get its IndexAmRoutine struct.
- *
- * If the given OID isn't a valid index access method, returns NULL if
- * noerror is true, else throws error.
- */
-IndexAmRoutine *
-GetIndexAmRoutineByAmId(Oid amoid, bool noerror)
-{
-	HeapTuple	tuple;
-	Form_pg_am	amform;
-	regproc		amhandler;
-
-	/* Get handler function OID for the access method */
-	tuple = SearchSysCache1(AMOID, ObjectIdGetDatum(amoid));
-	if (!HeapTupleIsValid(tuple))
-	{
-		if (noerror)
-			return NULL;
-		elog(ERROR, "cache lookup failed for access method %u",
-			 amoid);
-	}
-	amform = (Form_pg_am) GETSTRUCT(tuple);
-
-	/* Check if it's an index access method as opposed to some other AM */
-	if (amform->amtype != AMTYPE_INDEX)
-	{
-		if (noerror)
-		{
-			ReleaseSysCache(tuple);
-			return NULL;
-		}
-		ereport(ERROR,
-				(errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-				 errmsg("access method \"%s\" is not of type %s",
-						NameStr(amform->amname), "INDEX")));
-	}
-
-	amhandler = amform->amhandler;
-
-	/* Complain if handler OID is invalid */
-	if (!RegProcedureIsValid(amhandler))
-	{
-		if (noerror)
-		{
-			ReleaseSysCache(tuple);
-			return NULL;
-		}
-		ereport(ERROR,
-				(errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-				 errmsg("index access method \"%s\" does not have a handler",
-						NameStr(amform->amname))));
-	}
-
-	ReleaseSysCache(tuple);
-
-	/* And finally, call the handler function to get the API struct. */
-	return GetIndexAmRoutine(amhandler);
-}
-
-
-/*
- * Ask appropriate access method to validate the specified opclass.
- */
-Datum
-amvalidate(PG_FUNCTION_ARGS)
-{
-	Oid			opclassoid = PG_GETARG_OID(0);
-	bool		result;
-	HeapTuple	classtup;
-	Form_pg_opclass classform;
-	Oid			amoid;
-	IndexAmRoutine *amroutine;
-
-	classtup = SearchSysCache1(CLAOID, ObjectIdGetDatum(opclassoid));
-	if (!HeapTupleIsValid(classtup))
-		elog(ERROR, "cache lookup failed for operator class %u", opclassoid);
-	classform = (Form_pg_opclass) GETSTRUCT(classtup);
-
-	amoid = classform->opcmethod;
-
-	ReleaseSysCache(classtup);
-
-	amroutine = GetIndexAmRoutineByAmId(amoid, false);
-
-	if (amroutine->amvalidate == NULL)
-		elog(ERROR, "function amvalidate is not defined for index access method %u",
-			 amoid);
-
-	result = amroutine->amvalidate(opclassoid);
-
-	pfree(amroutine);
-
-	PG_RETURN_BOOL(result);
-}