postgres_ffi: expose HeapTupleHeaderData

libs/postgres_ffi/bindgen_deps.h

@@ -12,3 +12,5 @@
 #include "storage/bufpage.h"
 #include "storage/off.h"
 #include "access/multixact.h"
+#include "postgres.h"
+#include "access/htup.h"

libs/postgres_ffi/build.rs

@@ -29,6 +29,7 @@ impl ParseCallbacks for PostgresFfiCallbacks {
             "CheckPoint",
             "FullTransactionId",
             "ControlFileData",
+            "HeapTupleHeaderData",
         ];
 
         if serde_list.contains(&derive_info.name) {
@@ -125,6 +126,8 @@ fn main() -> anyhow::Result<()> {
             .allowlist_var("PG_CONTROL_FILE_SIZE")
             .allowlist_var("PG_CONTROLFILEDATA_OFFSETOF_CRC")
             .allowlist_type("PageHeaderData")
+            .allowlist_type("HeapTupleHeaderData")
+            .allowlist_type("Datum")
             .allowlist_type("DBState")
             .allowlist_type("RelMapFile")
             .allowlist_type("RepOriginId")

libs/postgres_ffi/src/lib.rs

@@ -223,9 +223,9 @@ pub mod walrecord;
 
 // Export some widely used datatypes that are unlikely to change across Postgres versions
 pub use v14::bindings::{
-    BlockNumber, CheckPoint, ControlFileData, MultiXactId, OffsetNumber, Oid, PageHeaderData,
-    RepOriginId, TimeLineID, TimestampTz, TransactionId, XLogRecPtr, XLogRecord, XLogSegNo, uint32,
-    uint64,
+    BlockNumber, CheckPoint, ControlFileData, HeapTupleHeaderData, MultiXactId, OffsetNumber, Oid,
+    PageHeaderData, RepOriginId, TimeLineID, TimestampTz, TransactionId, XLogRecPtr, XLogRecord,
+    XLogSegNo, uint32, uint64,
 };
 // Likewise for these, although the assumption that these don't change is a little more iffy.
 pub use v14::bindings::{MultiXactOffset, MultiXactStatus};