mirror of
https://github.com/postgres/postgres.git
synced 2025-07-30 11:03:19 +03:00
More functions updated to new fmgr style --- money, name, tid datatypes.
We're reaching the mopup stage here (good thing too, this is getting tedious).
This commit is contained in:
@ -8,7 +8,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/utils/adt/tid.c,v 1.21 2000/07/05 23:11:35 tgl Exp $
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* $Header: /cvsroot/pgsql/src/backend/utils/adt/tid.c,v 1.22 2000/08/03 16:34:23 tgl Exp $
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*
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* NOTES
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* input routine largely stolen from boxin().
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@ -21,6 +21,11 @@
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#include "access/heapam.h"
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#include "utils/builtins.h"
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#define DatumGetItemPointer(X) ((ItemPointer) DatumGetPointer(X))
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#define ItemPointerGetDatum(X) PointerGetDatum(X)
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#define PG_GETARG_ITEMPOINTER(n) DatumGetItemPointer(PG_GETARG_DATUM(n))
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#define PG_RETURN_ITEMPOINTER(x) return ItemPointerGetDatum(x)
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#define LDELIM '('
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#define RDELIM ')'
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#define DELIM ','
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@ -30,30 +35,23 @@
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* tidin
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* ----------------------------------------------------------------
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*/
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ItemPointer
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tidin(const char *str)
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Datum
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tidin(PG_FUNCTION_ARGS)
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{
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const char *p,
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char *str = PG_GETARG_CSTRING(0);
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char *p,
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*coord[NTIDARGS];
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int i;
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ItemPointer result;
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BlockNumber blockNumber;
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OffsetNumber offsetNumber;
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if (str == NULL)
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return NULL;
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for (i = 0, p = str; *p && i < NTIDARGS && *p != RDELIM; p++)
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if (*p == DELIM || (*p == LDELIM && !i))
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coord[i++] = p + 1;
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/* if (i < NTIDARGS - 1) */
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if (i < NTIDARGS)
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{
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elog(ERROR, "%s invalid tid format", str);
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return NULL;
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}
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elog(ERROR, "invalid tid format: '%s'", str);
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blockNumber = (BlockNumber) atoi(coord[0]);
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offsetNumber = (OffsetNumber) atoi(coord[1]);
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@ -62,67 +60,61 @@ tidin(const char *str)
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ItemPointerSet(result, blockNumber, offsetNumber);
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return result;
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PG_RETURN_ITEMPOINTER(result);
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}
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/* ----------------------------------------------------------------
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* tidout
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* ----------------------------------------------------------------
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*/
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char *
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tidout(ItemPointer itemPtr)
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Datum
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tidout(PG_FUNCTION_ARGS)
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{
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ItemPointer itemPtr = PG_GETARG_ITEMPOINTER(0);
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BlockId blockId;
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BlockNumber blockNumber;
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OffsetNumber offsetNumber;
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BlockId blockId;
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char buf[32];
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char *str;
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static char *invalidTid = "()";
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if (!itemPtr || !ItemPointerIsValid(itemPtr))
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{
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str = palloc(strlen(invalidTid));
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strcpy(str, invalidTid);
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return str;
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}
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if (!ItemPointerIsValid(itemPtr))
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PG_RETURN_CSTRING(pstrdup(invalidTid));
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blockId = &(itemPtr->ip_blkid);
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blockNumber = BlockIdGetBlockNumber(blockId);
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offsetNumber = itemPtr->ip_posid;
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sprintf(buf, "(%d,%d)", blockNumber, offsetNumber);
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sprintf(buf, "(%d,%d)", (int) blockNumber, (int) offsetNumber);
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str = (char *) palloc(strlen(buf) + 1);
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strcpy(str, buf);
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return str;
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PG_RETURN_CSTRING(pstrdup(buf));
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}
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/*****************************************************************************
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* PUBLIC ROUTINES *
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*****************************************************************************/
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bool
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tideq(ItemPointer arg1, ItemPointer arg2)
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Datum
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tideq(PG_FUNCTION_ARGS)
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{
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if ((!arg1) || (!arg2))
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return false;
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ItemPointer arg1 = PG_GETARG_ITEMPOINTER(0);
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ItemPointer arg2 = PG_GETARG_ITEMPOINTER(1);
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return (BlockIdGetBlockNumber(&(arg1->ip_blkid)) ==
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BlockIdGetBlockNumber(&(arg2->ip_blkid)) &&
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arg1->ip_posid == arg2->ip_posid);
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PG_RETURN_BOOL(BlockIdGetBlockNumber(&(arg1->ip_blkid)) ==
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BlockIdGetBlockNumber(&(arg2->ip_blkid)) &&
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arg1->ip_posid == arg2->ip_posid);
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}
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#ifdef NOT_USED
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bool
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tidne(ItemPointer arg1, ItemPointer arg2)
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Datum
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tidne(PG_FUNCTION_ARGS)
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{
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if ((!arg1) || (!arg2))
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return false;
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return (BlockIdGetBlockNumber(&(arg1->ip_blkid)) !=
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BlockIdGetBlockNumber(&(arg2->ip_blkid)) ||
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arg1->ip_posid != arg2->ip_posid);
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ItemPointer arg1 = PG_GETARG_ITEMPOINTER(0);
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ItemPointer arg2 = PG_GETARG_ITEMPOINTER(1);
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PG_RETURN_BOOL(BlockIdGetBlockNumber(&(arg1->ip_blkid)) !=
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BlockIdGetBlockNumber(&(arg2->ip_blkid)) ||
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arg1->ip_posid != arg2->ip_posid);
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}
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#endif
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@ -135,7 +127,7 @@ Datum
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currtid_byreloid(PG_FUNCTION_ARGS)
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{
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Oid reloid = PG_GETARG_OID(0);
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ItemPointer tid = (ItemPointer) PG_GETARG_POINTER(1);
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ItemPointer tid = PG_GETARG_ITEMPOINTER(1);
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ItemPointer result,
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ret;
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Relation rel;
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@ -152,14 +144,14 @@ currtid_byreloid(PG_FUNCTION_ARGS)
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else
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elog(ERROR, "Relation %u not found", reloid);
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PG_RETURN_POINTER(result);
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PG_RETURN_ITEMPOINTER(result);
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}
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Datum
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currtid_byrelname(PG_FUNCTION_ARGS)
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{
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text *relname = PG_GETARG_TEXT_P(0);
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ItemPointer tid = (ItemPointer) PG_GETARG_POINTER(1);
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ItemPointer tid = PG_GETARG_ITEMPOINTER(1);
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ItemPointer result,
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ret;
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char *str;
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@ -182,5 +174,5 @@ currtid_byrelname(PG_FUNCTION_ARGS)
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pfree(str);
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PG_RETURN_POINTER(result);
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PG_RETURN_ITEMPOINTER(result);
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}
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