Fix oversight in backpatch of 6cae9d2c10

During backpatch of 6cae9d2c10 Float8GetDatum() was accidentally removed.  This
commit turns it back.

Reported-by: Erik Rijkers
Discussion: https://postgr.es/m/6d51305e1159241cabee132f7efc7eff%40xs4all.nl
Author: Tom Lane
Backpatch-through: from 11 to 9.5

diff --git a/src/backend/access/gist/gistget.c b/src/backend/access/gist/gistget.c
index 49d1c9d2bb9d44f94debf13e5607c0dc7b06b982..c861226fbcdd1784fc81e807d24974fcddb1fde7 100644 (file)
--- a/src/backend/access/gist/gistget.c
+++ b/src/backend/access/gist/gistget.c
@@ -577,7 +577,7 @@ getNextNearest(IndexScanDesc scan)
                                        if (!scan->xs_orderbynulls[i])
                                                pfree(DatumGetPointer(scan->xs_orderbyvals[i]));
 #endif
-                                       scan->xs_orderbyvals[i] = item->distances[i].value;
+                                       scan->xs_orderbyvals[i] = Float8GetDatum(item->distances[i].value);
                                        scan->xs_orderbynulls[i] = item->distances[i].isnull;
                                }
                                else if (so->orderByTypes[i] == FLOAT4OID)