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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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4
src/include/parser/parse_expr.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/parser/parse_expr.h,v 1.32 2003/11/29 22:41:09 pgsql Exp $
* $PostgreSQL: pgsql/src/include/parser/parse_expr.h,v 1.33 2004/03/24 22:40:29 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -18,7 +18,6 @@
/* GUC parameters */
extern int max_expr_depth;
extern bool Transform_null_equals;
@@ -26,6 +25,5 @@ extern Node *transformExpr(ParseState *pstate, Node *expr);
extern Oid exprType(Node *expr);
extern int32 exprTypmod(Node *expr);
extern bool exprIsLengthCoercion(Node *expr, int32 *coercedTypmod);
extern void parse_expr_init(void);
#endif /* PARSE_EXPR_H */