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-rw-r--r--src/backend/parser/parse_param.c3
-rw-r--r--src/test/regress/expected/prepare.out5
-rw-r--r--src/test/regress/sql/prepare.sql3
3 files changed, 10 insertions, 1 deletions
diff --git a/src/backend/parser/parse_param.c b/src/backend/parser/parse_param.c
index dbf1a7dff08..b617591ef68 100644
--- a/src/backend/parser/parse_param.c
+++ b/src/backend/parser/parse_param.c
@@ -31,6 +31,7 @@
#include "parser/parse_param.h"
#include "utils/builtins.h"
#include "utils/lsyscache.h"
+#include "utils/memutils.h"
typedef struct FixedParamState
@@ -136,7 +137,7 @@ variable_paramref_hook(ParseState *pstate, ParamRef *pref)
Param *param;
/* Check parameter number is in range */
- if (paramno <= 0 || paramno > INT_MAX / sizeof(Oid))
+ if (paramno <= 0 || paramno > MaxAllocSize / sizeof(Oid))
ereport(ERROR,
(errcode(ERRCODE_UNDEFINED_PARAMETER),
errmsg("there is no parameter $%d", paramno),
diff --git a/src/test/regress/expected/prepare.out b/src/test/regress/expected/prepare.out
index 5815e17b39c..853cbed248e 100644
--- a/src/test/regress/expected/prepare.out
+++ b/src/test/regress/expected/prepare.out
@@ -184,6 +184,11 @@ SELECT name, statement, parameter_types, result_types FROM pg_prepared_statement
| UPDATE tenk1 SET stringu1 = $2 WHERE unique1 = $1; | |
(6 rows)
+-- max parameter number and one above
+PREPARE q9 AS SELECT $268435455, $268435456;
+ERROR: there is no parameter $268435456
+LINE 1: PREPARE q9 AS SELECT $268435455, $268435456;
+ ^
-- test DEALLOCATE ALL;
DEALLOCATE ALL;
SELECT name, statement, parameter_types FROM pg_prepared_statements
diff --git a/src/test/regress/sql/prepare.sql b/src/test/regress/sql/prepare.sql
index c6098dc95ce..1536f802d5e 100644
--- a/src/test/regress/sql/prepare.sql
+++ b/src/test/regress/sql/prepare.sql
@@ -78,6 +78,9 @@ PREPARE q8 AS
SELECT name, statement, parameter_types, result_types FROM pg_prepared_statements
ORDER BY name;
+-- max parameter number and one above
+PREPARE q9 AS SELECT $268435455, $268435456;
+
-- test DEALLOCATE ALL;
DEALLOCATE ALL;
SELECT name, statement, parameter_types FROM pg_prepared_statements