On Thu, Mar 13, 2014 at 10:22 AM, Robert Haas <robertmh...@gmail.com> wrote:
>
> On Wed, Mar 12, 2014 at 11:11 PM, Fabrízio de Royes Mello
> <fabriziome...@gmail.com> wrote:
> > Hi all,
> >
> > Shouldn't the "ALTER" statements below raise an exception?
> >
> > fabrizio=# CREATE TABLE foo(bar SERIAL PRIMARY KEY);
> > CREATE TABLE
> >
> > fabrizio=# SELECT relname, reloptions FROM pg_class WHERE relname ~
'^foo';
> > relname | reloptions
> > -------------+------------
> > foo |
> > foo_bar_seq |
> > foo_pkey |
> > (3 rows)
> >
> > fabrizio=# ALTER TABLE foo RESET (noname);
> > ALTER TABLE
> >
> > fabrizio=# ALTER INDEX foo_pkey RESET (noname);
> > ALTER INDEX
> >
> > fabrizio=# ALTER TABLE foo ALTER COLUMN bar RESET (noname);
> > ALTER TABLE
> >
> >
> > If I try to "SET" an option called "noname" obviously will raise an
> > exception:
> >
> > fabrizio=# ALTER TABLE foo SET (noname=1);
> > ERROR: unrecognized parameter "noname"
>
> Well, it's fairly harmless, but it might not be a bad idea to tighten
that up.
>
The attached patch tighten that up.
Grettings,
--
Fabrízio de Royes Mello
Consultoria/Coaching PostgreSQL
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diff --git a/src/backend/access/common/reloptions.c b/src/backend/access/common/reloptions.c
index 530a1ae..4a5b767 100644
--- a/src/backend/access/common/reloptions.c
+++ b/src/backend/access/common/reloptions.c
@@ -307,6 +307,8 @@ static void initialize_reloptions(void);
static void parse_one_reloption(relopt_value *option, char *text_str,
int text_len, bool validate);
+static bool is_valid_reloption(char *name);
+
/*
* initialize_reloptions
* initialization routine, must be called before parsing
@@ -382,6 +384,25 @@ initialize_reloptions(void)
}
/*
+ * is_valid_reloption
+ * check if a reloption exists
+ *
+ */
+static bool
+is_valid_reloption(char *name)
+{
+ int i;
+
+ for (i = 0; relOpts[i]; i++)
+ {
+ if (pg_strcasecmp(relOpts[i]->name, name) == 0)
+ return true;
+ }
+
+ return false;
+}
+
+/*
* add_reloption_kind
* Create a new relopt_kind value, to be used in custom reloptions by
* user-defined AMs.
@@ -674,6 +695,11 @@ transformRelOptions(Datum oldOptions, List *defList, char *namspace,
if (isReset)
{
+ if (!is_valid_reloption(def->defname))
+ ereport(ERROR,
+ (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
+ errmsg("unrecognized parameter \"%s\"", def->defname)));
+
if (def->arg != NULL)
ereport(ERROR,
(errcode(ERRCODE_SYNTAX_ERROR),
diff --git a/src/test/regress/expected/alter_table.out b/src/test/regress/expected/alter_table.out
index 0f0c638..195103e 100644
--- a/src/test/regress/expected/alter_table.out
+++ b/src/test/regress/expected/alter_table.out
@@ -7,6 +7,14 @@ COMMENT ON TABLE tmp_wrong IS 'table comment';
ERROR: relation "tmp_wrong" does not exist
COMMENT ON TABLE tmp IS 'table comment';
COMMENT ON TABLE tmp IS NULL;
+ALTER TABLE tmp SET (fillfactor=70);
+ALTER TABLE tmp RESET (fillfactor, noname);
+ERROR: unrecognized parameter "noname"
+ALTER TABLE tmp RESET (fillfactor=70);
+ERROR: RESET must not include values for parameters
+ALTER TABLE tmp RESET (fillfactor);
+ALTER TABLE tmp RESET (noname);
+ERROR: unrecognized parameter "noname"
ALTER TABLE tmp ADD COLUMN xmin integer; -- fails
ERROR: column name "xmin" conflicts with a system column name
ALTER TABLE tmp ADD COLUMN a int4 default 3;
diff --git a/src/test/regress/sql/alter_table.sql b/src/test/regress/sql/alter_table.sql
index 87973c1..2cb31f2 100644
--- a/src/test/regress/sql/alter_table.sql
+++ b/src/test/regress/sql/alter_table.sql
@@ -9,6 +9,16 @@ COMMENT ON TABLE tmp_wrong IS 'table comment';
COMMENT ON TABLE tmp IS 'table comment';
COMMENT ON TABLE tmp IS NULL;
+ALTER TABLE tmp SET (fillfactor=70);
+
+ALTER TABLE tmp RESET (fillfactor, noname);
+
+ALTER TABLE tmp RESET (fillfactor=70);
+
+ALTER TABLE tmp RESET (fillfactor);
+
+ALTER TABLE tmp RESET (noname);
+
ALTER TABLE tmp ADD COLUMN xmin integer; -- fails
ALTER TABLE tmp ADD COLUMN a int4 default 3;
--
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