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Replace max_expr_depth parameter with a max_stack_depth parameter that

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is measured in kilobytes and checked against actual physical execution
stack depth, as per my proposal of 30-Dec.  This gives us a fairly
bulletproof defense against crashing due to runaway recursive functions.
This commit is contained in:
Tom Lane
2004-03-24 22:40:29 +00:00
parent a09b9a36d3
commit 8899a2aba9
13 changed files with 157 additions and 79 deletions
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7
src/include/tcop/tcopprot.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/tcop/tcopprot.h,v 1.62 2004/03/15 15:56:27 momjian Exp $
* $PostgreSQL: pgsql/src/include/tcop/tcopprot.h,v 1.63 2004/03/24 22:40:29 tgl Exp $
*
* OLD COMMENTS
* This file was created so that other c files could get the two
@@ -23,6 +23,7 @@
#include "executor/execdesc.h"
#include "tcop/dest.h"
#include "utils/guc.h"
extern DLLIMPORT sigjmp_buf Warn_restart;
@@ -32,6 +33,7 @@ extern CommandDest whereToSendOutput;
extern bool log_hostname;
extern DLLIMPORT const char *debug_query_string;
extern char *rendezvous_name;
extern int max_stack_depth;
#ifndef BOOTSTRAP_INCLUDE
@@ -43,6 +45,9 @@ extern List *pg_analyze_and_rewrite(Node *parsetree,
extern List *pg_rewrite_queries(List *querytree_list);
extern Plan *pg_plan_query(Query *querytree);
extern List *pg_plan_queries(List *querytrees, bool needSnapshot);
extern bool assign_max_stack_depth(int newval, bool doit, GucSource source);
#endif /* BOOTSTRAP_INCLUDE */
extern void die(SIGNAL_ARGS);