diff options
Diffstat (limited to 'src/backend')
| -rw-r--r-- | src/backend/access/hash/hashvalidate.c | 3 | ||||
| -rw-r--r-- | src/backend/utils/adt/xid.c | 116 |
2 files changed, 119 insertions, 0 deletions
diff --git a/src/backend/access/hash/hashvalidate.c b/src/backend/access/hash/hashvalidate.c index 7b08ed53543..b3d1367fecb 100644 --- a/src/backend/access/hash/hashvalidate.c +++ b/src/backend/access/hash/hashvalidate.c @@ -317,6 +317,9 @@ check_hash_func_signature(Oid funcid, int16 amprocnum, Oid argtype) (argtype == DATEOID || argtype == XIDOID || argtype == CIDOID)) /* okay, allowed use of hashint4() */ ; + else if ((funcid == F_HASHINT8 || funcid == F_HASHINT8EXTENDED) && + (argtype == XID8OID)) + /* okay, allowed use of hashint8() */ ; else if ((funcid == F_TIMESTAMP_HASH || funcid == F_TIMESTAMP_HASH_EXTENDED) && argtype == TIMESTAMPTZOID) diff --git a/src/backend/utils/adt/xid.c b/src/backend/utils/adt/xid.c index db6fc9dd6b8..20389aff1d1 100644 --- a/src/backend/utils/adt/xid.c +++ b/src/backend/utils/adt/xid.c @@ -21,6 +21,7 @@ #include "access/xact.h" #include "libpq/pqformat.h" #include "utils/builtins.h" +#include "utils/xid8.h" #define PG_GETARG_TRANSACTIONID(n) DatumGetTransactionId(PG_GETARG_DATUM(n)) #define PG_RETURN_TRANSACTIONID(x) return TransactionIdGetDatum(x) @@ -147,6 +148,121 @@ xidComparator(const void *arg1, const void *arg2) return 0; } +Datum +xid8toxid(PG_FUNCTION_ARGS) +{ + FullTransactionId fxid = PG_GETARG_FULLTRANSACTIONID(0); + + PG_RETURN_TRANSACTIONID(XidFromFullTransactionId(fxid)); +} + +Datum +xid8in(PG_FUNCTION_ARGS) +{ + char *str = PG_GETARG_CSTRING(0); + + PG_RETURN_FULLTRANSACTIONID(FullTransactionIdFromU64(pg_strtouint64(str, NULL, 0))); +} + +Datum +xid8out(PG_FUNCTION_ARGS) +{ + FullTransactionId fxid = PG_GETARG_FULLTRANSACTIONID(0); + char *result = (char *) palloc(21); + + snprintf(result, 21, UINT64_FORMAT, U64FromFullTransactionId(fxid)); + PG_RETURN_CSTRING(result); +} + +Datum +xid8recv(PG_FUNCTION_ARGS) +{ + StringInfo buf = (StringInfo) PG_GETARG_POINTER(0); + uint64 value; + + value = (uint64) pq_getmsgint64(buf); + PG_RETURN_FULLTRANSACTIONID(FullTransactionIdFromU64(value)); +} + +Datum +xid8send(PG_FUNCTION_ARGS) +{ + FullTransactionId arg1 = PG_GETARG_FULLTRANSACTIONID(0); + StringInfoData buf; + + pq_begintypsend(&buf); + pq_sendint64(&buf, (uint64) U64FromFullTransactionId(arg1)); + PG_RETURN_BYTEA_P(pq_endtypsend(&buf)); +} + +Datum +xid8eq(PG_FUNCTION_ARGS) +{ + FullTransactionId fxid1 = PG_GETARG_FULLTRANSACTIONID(0); + FullTransactionId fxid2 = PG_GETARG_FULLTRANSACTIONID(1); + + PG_RETURN_BOOL(FullTransactionIdEquals(fxid1, fxid2)); +} + +Datum +xid8ne(PG_FUNCTION_ARGS) +{ + FullTransactionId fxid1 = PG_GETARG_FULLTRANSACTIONID(0); + FullTransactionId fxid2 = PG_GETARG_FULLTRANSACTIONID(1); + + PG_RETURN_BOOL(!FullTransactionIdEquals(fxid1, fxid2)); +} + +Datum +xid8lt(PG_FUNCTION_ARGS) +{ + FullTransactionId fxid1 = PG_GETARG_FULLTRANSACTIONID(0); + FullTransactionId fxid2 = PG_GETARG_FULLTRANSACTIONID(1); + + PG_RETURN_BOOL(FullTransactionIdPrecedes(fxid1, fxid2)); +} + +Datum +xid8gt(PG_FUNCTION_ARGS) +{ + FullTransactionId fxid1 = PG_GETARG_FULLTRANSACTIONID(0); + FullTransactionId fxid2 = PG_GETARG_FULLTRANSACTIONID(1); + + PG_RETURN_BOOL(FullTransactionIdFollows(fxid1, fxid2)); +} + +Datum +xid8le(PG_FUNCTION_ARGS) +{ + FullTransactionId fxid1 = PG_GETARG_FULLTRANSACTIONID(0); + FullTransactionId fxid2 = PG_GETARG_FULLTRANSACTIONID(1); + + PG_RETURN_BOOL(FullTransactionIdPrecedesOrEquals(fxid1, fxid2)); +} + +Datum +xid8ge(PG_FUNCTION_ARGS) +{ + FullTransactionId fxid1 = PG_GETARG_FULLTRANSACTIONID(0); + FullTransactionId fxid2 = PG_GETARG_FULLTRANSACTIONID(1); + + PG_RETURN_BOOL(FullTransactionIdFollowsOrEquals(fxid1, fxid2)); +} + +Datum +xid8cmp(PG_FUNCTION_ARGS) +{ + FullTransactionId fxid1 = PG_GETARG_FULLTRANSACTIONID(0); + FullTransactionId fxid2 = PG_GETARG_FULLTRANSACTIONID(1); + + if (FullTransactionIdFollows(fxid1, fxid2)) + PG_RETURN_INT32(1); + else if (FullTransactionIdEquals(fxid1, fxid2)) + PG_RETURN_INT32(0); + else + PG_RETURN_INT32(-1); +} + /***************************************************************************** * COMMAND IDENTIFIER ROUTINES * *****************************************************************************/ |