diff options
Diffstat (limited to 'src/backend/commands/tablecmds.c')
| -rw-r--r-- | src/backend/commands/tablecmds.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/backend/commands/tablecmds.c b/src/backend/commands/tablecmds.c index 416a98e7cef..e456ccd767e 100644 --- a/src/backend/commands/tablecmds.c +++ b/src/backend/commands/tablecmds.c @@ -7630,6 +7630,9 @@ set_attnotnull(List **wqueue, Relation rel, AttrNumber attnum, bool recurse, Form_pg_attribute attForm; bool retval = false; + /* Guard against stack overflow due to overly deep inheritance tree. */ + check_stack_depth(); + tuple = SearchSysCacheCopyAttNum(RelationGetRelid(rel), attnum); if (!HeapTupleIsValid(tuple)) elog(ERROR, "cache lookup failed for attribute %d of relation %u", @@ -7716,6 +7719,9 @@ ATExecSetNotNull(List **wqueue, Relation rel, char *conName, char *colName, bool is_no_inherit = false; List *ready = NIL; + /* Guard against stack overflow due to overly deep inheritance tree. */ + check_stack_depth(); + /* * In cases of multiple inheritance, we might visit the same child more * than once. In the topmost call, set up a list that we fill with all @@ -9359,6 +9365,9 @@ ATAddCheckNNConstraint(List **wqueue, AlteredTableInfo *tab, Relation rel, ListCell *child; ObjectAddress address = InvalidObjectAddress; + /* Guard against stack overflow due to overly deep inheritance tree. */ + check_stack_depth(); + /* At top level, permission check was done in ATPrepCmd, else do it */ if (recursing) ATSimplePermissions(AT_AddConstraint, rel, ATT_TABLE | ATT_FOREIGN_TABLE); @@ -12428,6 +12437,9 @@ dropconstraint_internal(Relation rel, HeapTuple constraintTup, DropBehavior beha return InvalidObjectAddress; *readyRels = lappend_oid(*readyRels, RelationGetRelid(rel)); + /* Guard against stack overflow due to overly deep inheritance tree. */ + check_stack_depth(); + /* At top level, permission check was done in ATPrepCmd, else do it */ if (recursing) ATSimplePermissions(AT_DropConstraint, rel, ATT_TABLE | ATT_FOREIGN_TABLE); |