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mirror of https://github.com/wader/fq.git synced 2024-12-03 13:46:37 +03:00
fq/format/postgres/flavours/pgproee10/pgheap.go
2022-08-05 13:37:31 +03:00

65 lines
2.1 KiB
Go

package pgproee10
import (
"github.com/wader/fq/format/postgres/common"
"github.com/wader/fq/format/postgres/flavours/pgproee14/ee14"
"github.com/wader/fq/format/postgres/flavours/postgres14/common14"
"github.com/wader/fq/pkg/decode"
)
// type = struct PageHeaderData {
/* 0 | 8 */ // PageXLogRecPtr pd_lsn;
/* 8 | 2 */ // uint16 pd_checksum;
/* 10 | 2 */ // uint16 pd_flags;
/* 12 | 2 */ // LocationIndex pd_lower;
/* 14 | 2 */ // LocationIndex pd_upper;
/* 16 | 2 */ // LocationIndex pd_special;
/* 18 | 2 */ // uint16 pd_pagesize_version;
/* 20 | 0 */ // ItemIdData pd_linp[];
//
/* total size (bytes): 20 */
// type = struct HeapTupleHeaderData {
/* 0 | 12 */ // union {
/* 12 */ // HeapTupleFields t_heap;
/* 12 */ // DatumTupleFields t_datum;
// } t_choice
/* total size (bytes): 12 */
//
/* 12 | 6 */ // ItemPointerData t_ctid
/* 18 | 2 */ // uint16 t_infomask2
/* 20 | 2 */ // uint16 t_infomask
/* 22 | 1 */ // uint8 t_hoff
/* 23 | 0 */ // bits8 t_bits[]
/* XXX 1-byte padding */
//
/* total size (bytes): 24 */
// type = struct HeapTupleFields {
/* 0 | 4 */ // ShortTransactionId t_xmin;
/* 4 | 4 */ // ShortTransactionId t_xmax;
/* 8 | 4 */ // union {
/* 4 */ // CommandId t_cid;
/* 4 */ // ShortTransactionId t_xvac;
// } t_field3;
/* total size (bytes): 4 */
//
/* total size (bytes): 12 */
// type = struct HeapPageSpecialData {
/* 0 | 8 */ // TransactionId pd_xid_base;
/* 8 | 8 */ // TransactionId pd_multi_base;
/* 16 | 4 */ // ShortTransactionId pd_prune_xid;
/* 20 | 4 */ // uint32 pd_magic;
//
/* total size (bytes): 24 */
func DecodeHeap(d *decode.D) any {
heap := &common14.HeapD{
PageSize: common.HeapPageSize,
DecodePageHeaderDataFn: ee14.DecodePageHeaderData,
DecodePageSpecialFn: ee14.DecodePageSpecial,
}
return common14.DecodeHeap(d, heap)
}