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PostgreSQL: pgheap impl for pgproee10
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Pavel Safonov
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Aug 5, 2022
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Original file line number | Diff line number | Diff line change |
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package pgproee10 | ||
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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" | ||
) | ||
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// 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 */ | ||
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// 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 */ | ||
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// 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 */ | ||
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// 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 */ | ||
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func DecodeHeap(d *decode.D) any { | ||
heap := &common14.HeapD{ | ||
PageSize: common.HeapPageSize, | ||
DecodePageHeaderDataFn: ee14.DecodePageHeaderData, | ||
DecodePageSpecialFn: ee14.DecodePageSpecial, | ||
} | ||
return common14.DecodeHeap(d, heap) | ||
} |
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