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Revert DTrace patch from Robert Lor

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REL8_5_ALPHA1_BRANCH
Bruce Momjian 17 years ago
parent 735cb9692d
commit 0e550ff617
15 changed files with 15 additions and 112 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 32
      src/backend/access/transam/slru.c
  2. 5
      src/backend/executor/execScan.c
  3. 5
      src/backend/executor/nodeAgg.c
  4. 5
      src/backend/executor/nodeGroup.c
  5. 5
      src/backend/executor/nodeHash.c
  6. 5
      src/backend/executor/nodeHashjoin.c
  7. 5
      src/backend/executor/nodeLimit.c
  8. 5
      src/backend/executor/nodeMaterial.c
  9. 5
      src/backend/executor/nodeMergejoin.c
  10. 5
      src/backend/executor/nodeNestloop.c
  11. 5
      src/backend/executor/nodeSetOp.c
  12. 5
      src/backend/executor/nodeSort.c
  13. 7
      src/backend/executor/nodeSubplan.c
  14. 5
      src/backend/executor/nodeUnique.c
  15. 28
      src/backend/utils/probes.d

32
src/backend/access/transam/slru.c
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@ -41,7 +41,7 @@
* Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/backend/access/transam/slru.c,v 1.46 2009/04/02 19:14:33 momjian Exp $
* $PostgreSQL: pgsql/src/backend/access/transam/slru.c,v 1.47 2009/04/02 20:59:10 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -57,7 +57,6 @@
#include "storage/fd.h"
#include "storage/shmem.h"
#include "miscadmin.h"
#include "pg_trace.h"
/*
@ -373,7 +372,6 @@ SimpleLruReadPage(SlruCtl ctl, int pageno, bool write_ok,
{
SlruShared shared = ctl->shared;
TRACE_POSTGRESQL_SLRU_READPAGE_START((uintptr_t)ctl, pageno, write_ok, xid);
/* Outer loop handles restart if we must wait for someone else's I/O */
for (;;)
{
@ -401,7 +399,6 @@ SimpleLruReadPage(SlruCtl ctl, int pageno, bool write_ok,
}
/* Otherwise, it's ready to use */
SlruRecentlyUsed(shared, slotno);
TRACE_POSTGRESQL_SLRU_READPAGE_DONE(slotno);
return slotno;
}
@ -449,7 +446,6 @@ SimpleLruReadPage(SlruCtl ctl, int pageno, bool write_ok,
SlruReportIOError(ctl, pageno, xid);
SlruRecentlyUsed(shared, slotno);
TRACE_POSTGRESQL_SLRU_READPAGE_DONE(slotno);
return slotno;
}
}
@ -474,8 +470,6 @@ SimpleLruReadPage_ReadOnly(SlruCtl ctl, int pageno, TransactionId xid)
SlruShared shared = ctl->shared;
int slotno;
TRACE_POSTGRESQL_SLRU_READPAGE_READONLY((uintptr_t)ctl, pageno, xid);
/* Try to find the page while holding only shared lock */
LWLockAcquire(shared->ControlLock, LW_SHARED);
@ -517,8 +511,6 @@ SimpleLruWritePage(SlruCtl ctl, int slotno, SlruFlush fdata)
int pageno = shared->page_number[slotno];
bool ok;
TRACE_POSTGRESQL_SLRU_WRITEPAGE_START((uintptr_t)ctl, pageno, slotno);
/* If a write is in progress, wait for it to finish */
while (shared->page_status[slotno] == SLRU_PAGE_WRITE_IN_PROGRESS &&
shared->page_number[slotno] == pageno)
@ -533,10 +525,7 @@ SimpleLruWritePage(SlruCtl ctl, int slotno, SlruFlush fdata)
if (!shared->page_dirty[slotno] ||
shared->page_status[slotno] != SLRU_PAGE_VALID ||
shared->page_number[slotno] != pageno)
{
TRACE_POSTGRESQL_SLRU_WRITEPAGE_DONE();
return;
}
/*
* Mark the slot write-busy, and clear the dirtybit. After this point, a
@ -580,8 +569,6 @@ SimpleLruWritePage(SlruCtl ctl, int slotno, SlruFlush fdata)
/* Now it's okay to ereport if we failed */
if (!ok)
SlruReportIOError(ctl, pageno, InvalidTransactionId);
TRACE_POSTGRESQL_SLRU_WRITEPAGE_DONE();
}
/*
@ -606,8 +593,6 @@ SlruPhysicalReadPage(SlruCtl ctl, int pageno, int slotno)
SlruFileName(ctl, path, segno);
TRACE_POSTGRESQL_SLRU_READPAGE_PHYSICAL_START((uintptr_t)ctl, path, pageno, slotno);
/*
* In a crash-and-restart situation, it's possible for us to receive
* commands to set the commit status of transactions whose bits are in
@ -622,7 +607,6 @@ SlruPhysicalReadPage(SlruCtl ctl, int pageno, int slotno)
{
slru_errcause = SLRU_OPEN_FAILED;
slru_errno = errno;
TRACE_POSTGRESQL_SLRU_READPAGE_PHYSICAL_DONE(false, slru_errcause, slru_errno);
return false;
}
@ -630,7 +614,6 @@ SlruPhysicalReadPage(SlruCtl ctl, int pageno, int slotno)
(errmsg("file \"%s\" doesn't exist, reading as zeroes",
path)));
MemSet(shared->page_buffer[slotno], 0, BLCKSZ);
TRACE_POSTGRESQL_SLRU_READPAGE_PHYSICAL_DONE(true, -1, -1);
return true;
}
@ -639,7 +622,6 @@ SlruPhysicalReadPage(SlruCtl ctl, int pageno, int slotno)
slru_errcause = SLRU_SEEK_FAILED;
slru_errno = errno;
close(fd);
TRACE_POSTGRESQL_SLRU_READPAGE_PHYSICAL_DONE(false, slru_errcause, slru_errno);
return false;
}
@ -649,7 +631,6 @@ SlruPhysicalReadPage(SlruCtl ctl, int pageno, int slotno)
slru_errcause = SLRU_READ_FAILED;
slru_errno = errno;
close(fd);
TRACE_POSTGRESQL_SLRU_READPAGE_PHYSICAL_DONE(false, slru_errcause, slru_errno);
return false;
}
@ -657,12 +638,9 @@ SlruPhysicalReadPage(SlruCtl ctl, int pageno, int slotno)
{
slru_errcause = SLRU_CLOSE_FAILED;
slru_errno = errno;
TRACE_POSTGRESQL_SLRU_READPAGE_PHYSICAL_DONE(false, slru_errcause, slru_errno);
return false;
}
TRACE_POSTGRESQL_SLRU_READPAGE_PHYSICAL_DONE(true, -1, -1);
return true;
}
@ -690,8 +668,6 @@ SlruPhysicalWritePage(SlruCtl ctl, int pageno, int slotno, SlruFlush fdata)
char path[MAXPGPATH];
int fd = -1;
TRACE_POSTGRESQL_SLRU_WRITEPAGE_PHYSICAL_START((uintptr_t)ctl, pageno, slotno);
/*
* Honor the write-WAL-before-data rule, if appropriate, so that we do not
* write out data before associated WAL records. This is the same action
@ -777,7 +753,6 @@ SlruPhysicalWritePage(SlruCtl ctl, int pageno, int slotno, SlruFlush fdata)
{
slru_errcause = SLRU_OPEN_FAILED;
slru_errno = errno;
TRACE_POSTGRESQL_SLRU_WRITEPAGE_PHYSICAL_DONE(false, slru_errcause, slru_errno);
return false;
}
@ -806,7 +781,6 @@ SlruPhysicalWritePage(SlruCtl ctl, int pageno, int slotno, SlruFlush fdata)
slru_errno = errno;
if (!fdata)
close(fd);
TRACE_POSTGRESQL_SLRU_WRITEPAGE_PHYSICAL_DONE(false, slru_errcause, slru_errno);
return false;
}
@ -820,7 +794,6 @@ SlruPhysicalWritePage(SlruCtl ctl, int pageno, int slotno, SlruFlush fdata)
slru_errno = errno;
if (!fdata)
close(fd);
TRACE_POSTGRESQL_SLRU_WRITEPAGE_PHYSICAL_DONE(false, slru_errcause, slru_errno);
return false;
}
@ -835,7 +808,6 @@ SlruPhysicalWritePage(SlruCtl ctl, int pageno, int slotno, SlruFlush fdata)
slru_errcause = SLRU_FSYNC_FAILED;
slru_errno = errno;
close(fd);
TRACE_POSTGRESQL_SLRU_WRITEPAGE_PHYSICAL_DONE(false, slru_errcause, slru_errno);
return false;
}
@ -843,12 +815,10 @@ SlruPhysicalWritePage(SlruCtl ctl, int pageno, int slotno, SlruFlush fdata)
{
slru_errcause = SLRU_CLOSE_FAILED;
slru_errno = errno;
TRACE_POSTGRESQL_SLRU_WRITEPAGE_PHYSICAL_DONE(false, slru_errcause, slru_errno);
return false;
}
}
TRACE_POSTGRESQL_SLRU_WRITEPAGE_PHYSICAL_DONE(true, -1, -1);
return true;
}

5
src/backend/executor/execScan.c
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@ -12,7 +12,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/executor/execScan.c,v 1.45 2009/04/02 19:14:33 momjian Exp $
* $PostgreSQL: pgsql/src/backend/executor/execScan.c,v 1.46 2009/04/02 20:59:10 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -20,7 +20,6 @@
#include "executor/executor.h"
#include "miscadmin.h"
#include "pg_trace.h"
#include "utils/memutils.h"
@ -61,8 +60,6 @@ ExecScan(ScanState *node,
qual = node->ps.qual;
projInfo = node->ps.ps_ProjInfo;
TRACE_POSTGRESQL_EXECUTOR_SCAN((uintptr_t)node, ((Scan *)node->ps.plan)->scanrelid, (uintptr_t)accessMtd);
/*
* If we have neither a qual to check nor a projection to do, just skip
* all the overhead and return the raw scan tuple.

5
src/backend/executor/nodeAgg.c
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@ -61,7 +61,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/executor/nodeAgg.c,v 1.165 2009/04/02 19:14:33 momjian Exp $
* $PostgreSQL: pgsql/src/backend/executor/nodeAgg.c,v 1.166 2009/04/02 20:59:10 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -79,7 +79,6 @@
#include "parser/parse_agg.h"
#include "parser/parse_coerce.h"
#include "parser/parse_oper.h"
#include "pg_trace.h"
#include "utils/acl.h"
#include "utils/builtins.h"
#include "utils/lsyscache.h"
@ -815,8 +814,6 @@ ExecAgg(AggState *node)
if (node->agg_done)
return NULL;
TRACE_POSTGRESQL_EXECUTOR_AGG((uintptr_t)node, ((Agg *) node->ss.ps.plan)->aggstrategy);
/*
* Check to see if we're still projecting out tuples from a previous agg
* tuple (because there is a function-returning-set in the projection

5
src/backend/executor/nodeGroup.c
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@ -15,7 +15,7 @@
* locate group boundaries.
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/executor/nodeGroup.c,v 1.74 2009/04/02 19:14:33 momjian Exp $
* $PostgreSQL: pgsql/src/backend/executor/nodeGroup.c,v 1.75 2009/04/02 20:59:10 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -24,7 +24,6 @@
#include "executor/executor.h"
#include "executor/nodeGroup.h"
#include "pg_trace.h"
/*
@ -50,8 +49,6 @@ ExecGroup(GroupState *node)
numCols = ((Group *) node->ss.ps.plan)->numCols;
grpColIdx = ((Group *) node->ss.ps.plan)->grpColIdx;
TRACE_POSTGRESQL_EXECUTOR_GROUP((uintptr_t)node, numCols);
/*
* Check to see if we're still projecting out tuples from a previous group
* tuple (because there is a function-returning-set in the projection

5
src/backend/executor/nodeHash.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/executor/nodeHash.c,v 1.119 2009/04/02 19:14:33 momjian Exp $
* $PostgreSQL: pgsql/src/backend/executor/nodeHash.c,v 1.120 2009/04/02 20:59:10 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -33,7 +33,6 @@
#include "executor/nodeHashjoin.h"
#include "miscadmin.h"
#include "parser/parse_expr.h"
#include "pg_trace.h"
#include "utils/dynahash.h"
#include "utils/memutils.h"
#include "utils/lsyscache.h"
@ -80,8 +79,6 @@ MultiExecHash(HashState *node)
ExprContext *econtext;
uint32 hashvalue;
TRACE_POSTGRESQL_EXECUTOR_HASH_MULTI((uintptr_t)node);
/* must provide our own instrumentation support */
if (node->ps.instrument)
InstrStartNode(node->ps.instrument);

5
src/backend/executor/nodeHashjoin.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/executor/nodeHashjoin.c,v 1.99 2009/04/02 19:14:33 momjian Exp $
* $PostgreSQL: pgsql/src/backend/executor/nodeHashjoin.c,v 1.100 2009/04/02 20:59:10 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -19,7 +19,6 @@
#include "executor/hashjoin.h"
#include "executor/nodeHash.h"
#include "executor/nodeHashjoin.h"
#include "pg_trace.h"
#include "utils/memutils.h"
@ -62,8 +61,6 @@ ExecHashJoin(HashJoinState *node)
uint32 hashvalue;
int batchno;
TRACE_POSTGRESQL_EXECUTOR_HASHJOIN((uintptr_t)node);
/*
* get information from HashJoin node
*/

5
src/backend/executor/nodeLimit.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/executor/nodeLimit.c,v 1.37 2009/04/02 19:14:33 momjian Exp $
* $PostgreSQL: pgsql/src/backend/executor/nodeLimit.c,v 1.38 2009/04/02 20:59:10 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -23,7 +23,6 @@
#include "executor/executor.h"
#include "executor/nodeLimit.h"
#include "pg_trace.h"
static void recompute_limits(LimitState *node);
@ -42,8 +41,6 @@ ExecLimit(LimitState *node)
TupleTableSlot *slot;
PlanState *outerPlan;
TRACE_POSTGRESQL_EXECUTOR_LIMIT((uintptr_t)node);
/*
* get information from the node
*/

5
src/backend/executor/nodeMaterial.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/executor/nodeMaterial.c,v 1.67 2009/04/02 19:14:33 momjian Exp $
* $PostgreSQL: pgsql/src/backend/executor/nodeMaterial.c,v 1.68 2009/04/02 20:59:10 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -24,7 +24,6 @@
#include "executor/executor.h"
#include "executor/nodeMaterial.h"
#include "miscadmin.h"
#include "pg_trace.h"
/* ----------------------------------------------------------------
* ExecMaterial
@ -46,8 +45,6 @@ ExecMaterial(MaterialState *node)
bool eof_tuplestore;
TupleTableSlot *slot;
TRACE_POSTGRESQL_EXECUTOR_MATERIAL((uintptr_t)node);
/*
* get state info from node
*/

5
src/backend/executor/nodeMergejoin.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/executor/nodeMergejoin.c,v 1.95 2009/04/02 19:14:33 momjian Exp $
* $PostgreSQL: pgsql/src/backend/executor/nodeMergejoin.c,v 1.96 2009/04/02 20:59:10 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -98,7 +98,6 @@
#include "executor/execdefs.h"
#include "executor/nodeMergejoin.h"
#include "miscadmin.h"
#include "pg_trace.h"
#include "utils/acl.h"
#include "utils/lsyscache.h"
#include "utils/memutils.h"
@ -566,8 +565,6 @@ ExecMergeJoin(MergeJoinState *node)
bool doFillOuter;
bool doFillInner;
TRACE_POSTGRESQL_EXECUTOR_MERGEJOIN((uintptr_t)node);
/*
* get information from node
*/

5
src/backend/executor/nodeNestloop.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/executor/nodeNestloop.c,v 1.51 2009/04/02 19:14:33 momjian Exp $
* $PostgreSQL: pgsql/src/backend/executor/nodeNestloop.c,v 1.52 2009/04/02 20:59:10 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -23,7 +23,6 @@
#include "executor/execdebug.h"
#include "executor/nodeNestloop.h"
#include "pg_trace.h"
#include "utils/memutils.h"
@ -68,8 +67,6 @@ ExecNestLoop(NestLoopState *node)
List *otherqual;
ExprContext *econtext;
TRACE_POSTGRESQL_EXECUTOR_NESTLOOP((uintptr_t)node);
/*
* get information from the node
*/

5
src/backend/executor/nodeSetOp.c
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@ -37,7 +37,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/executor/nodeSetOp.c,v 1.29 2009/04/02 19:14:33 momjian Exp $
* $PostgreSQL: pgsql/src/backend/executor/nodeSetOp.c,v 1.30 2009/04/02 20:59:10 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -46,7 +46,6 @@
#include "executor/executor.h"
#include "executor/nodeSetOp.h"
#include "pg_trace.h"
#include "utils/memutils.h"
@ -197,8 +196,6 @@ ExecSetOp(SetOpState *node)
SetOp *plannode = (SetOp *) node->ps.plan;
TupleTableSlot *resultTupleSlot = node->ps.ps_ResultTupleSlot;
TRACE_POSTGRESQL_EXECUTOR_SETOP((uintptr_t)node);
/*
* If the previously-returned tuple needs to be returned more than once,
* keep returning it.

5
src/backend/executor/nodeSort.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/executor/nodeSort.c,v 1.64 2009/04/02 19:14:33 momjian Exp $
* $PostgreSQL: pgsql/src/backend/executor/nodeSort.c,v 1.65 2009/04/02 20:59:10 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -18,7 +18,6 @@
#include "executor/execdebug.h"
#include "executor/nodeSort.h"
#include "miscadmin.h"
#include "pg_trace.h"
#include "utils/tuplesort.h"
@ -54,8 +53,6 @@ ExecSort(SortState *node)
dir = estate->es_direction;
tuplesortstate = (Tuplesortstate *) node->tuplesortstate;
TRACE_POSTGRESQL_EXECUTOR_SORT((uintptr_t)node, dir);
/*
* If first time through, read all tuples from outer plan and pass them to
* tuplesort.c. Subsequent calls just fetch tuples from tuplesort.

7
src/backend/executor/nodeSubplan.c
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/executor/nodeSubplan.c,v 1.97 2009/04/02 19:14:33 momjian Exp $
* $PostgreSQL: pgsql/src/backend/executor/nodeSubplan.c,v 1.98 2009/04/02 20:59:10 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -24,7 +24,6 @@
#include "executor/nodeSubplan.h"
#include "nodes/makefuncs.h"
#include "optimizer/clauses.h"
#include "pg_trace.h"
#include "utils/array.h"
#include "utils/lsyscache.h"
#include "utils/memutils.h"
@ -93,8 +92,6 @@ ExecHashSubPlan(SubPlanState *node,
ExprContext *innerecontext = node->innerecontext;
TupleTableSlot *slot;
TRACE_POSTGRESQL_EXECUTOR_SUBPLAN_HASH((uintptr_t)node);
/* Shouldn't have any direct correlation Vars */
if (subplan->parParam != NIL || node->args != NIL)
elog(ERROR, "hashed subplan with direct correlation not supported");
@ -230,8 +227,6 @@ ExecScanSubPlan(SubPlanState *node,
ListCell *l;
ArrayBuildState *astate = NULL;
TRACE_POSTGRESQL_EXECUTOR_SUBPLAN_SCAN((uintptr_t)node);
/*
* We are probably in a short-lived expression-evaluation context. Switch
* to the per-query context for manipulating the child plan's chgParam,

5
src/backend/executor/nodeUnique.c
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@ -16,7 +16,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/executor/nodeUnique.c,v 1.59 2009/04/02 19:14:33 momjian Exp $
* $PostgreSQL: pgsql/src/backend/executor/nodeUnique.c,v 1.60 2009/04/02 20:59:10 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -35,7 +35,6 @@
#include "executor/executor.h"
#include "executor/nodeUnique.h"
#include "pg_trace.h"
#include "utils/memutils.h"
@ -51,8 +50,6 @@ ExecUnique(UniqueState *node)
TupleTableSlot *slot;
PlanState *outerPlan;
TRACE_POSTGRESQL_EXECUTOR_UNIQUE((uintptr_t)node);
/*
* get information from the node
*/

28
src/backend/utils/probes.d
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@ -3,7 +3,7 @@
*
* Copyright (c) 2006-2009, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/backend/utils/probes.d,v 1.10 2009/04/02 19:14:34 momjian Exp $
* $PostgreSQL: pgsql/src/backend/utils/probes.d,v 1.11 2009/04/02 20:59:10 momjian Exp $
* ----------
*/
@ -15,7 +15,6 @@
* in probe definitions, as they cause compilation errors on Mac OS X 10.5.
*/
#define LocalTransactionId unsigned int
#define TransactionId unsigned int
#define LWLockId int
#define LWLockMode int
#define LOCKMODE int
@ -91,29 +90,4 @@ provider postgresql {
probe xlog__switch();
probe wal__buffer__write__dirty__start();
probe wal__buffer__write__dirty__done();
probe slru__readpage__start(unsigned long, int, bool, TransactionId);
probe slru__readpage__done(int);
probe slru__readpage__readonly(unsigned long, int, TransactionId);
probe slru__writepage__start(unsigned long, int, int);
probe slru__writepage__done();
probe slru__readpage__physical__start(unsigned long, char *, int, int);
probe slru__readpage__physical__done(int, int, int);
probe slru__writepage__physical__start(unsigned long, int, int);
probe slru__writepage__physical__done(int, int, int);
probe executor__scan(unsigned long, unsigned int, unsigned long);
probe executor__agg(unsigned long, int);
probe executor__group(unsigned long, int);
probe executor__hash__multi(unsigned long);
probe executor__hashjoin(unsigned long);
probe executor__limit(unsigned long);
probe executor__material(unsigned long);
probe executor__mergejoin(unsigned long);
probe executor__nestloop(unsigned long);
probe executor__setop(unsigned long);
probe executor__sort(unsigned long, int);
probe executor__subplan__hash(unsigned long);
probe executor__subplan__scan(unsigned long);
probe executor__unique(unsigned long);
};

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