diff options
Diffstat (limited to 'src/backend/access/gist')
| -rw-r--r-- | src/backend/access/gist/gist.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/backend/access/gist/gist.c b/src/backend/access/gist/gist.c index f4eb246c91a..644b882b7d4 100644 --- a/src/backend/access/gist/gist.c +++ b/src/backend/access/gist/gist.c @@ -1264,6 +1264,23 @@ gistSplit(Relation r, int i; SplitedPageLayout *res = NULL; + /* this should never recurse very deeply, but better safe than sorry */ + check_stack_depth(); + + /* there's no point in splitting an empty page */ + Assert(len > 0); + + /* + * If a single tuple doesn't fit on a page, no amount of splitting will + * help. + */ + if (len == 1) + ereport(ERROR, + (errcode(ERRCODE_PROGRAM_LIMIT_EXCEEDED), + errmsg("index row size %zu exceeds maximum %zu for index \"%s\"", + IndexTupleSize(itup[0]), GiSTPageSize, + RelationGetRelationName(r)))); + memset(v.spl_lisnull, TRUE, sizeof(bool) * giststate->tupdesc->natts); memset(v.spl_risnull, TRUE, sizeof(bool) * giststate->tupdesc->natts); gistSplitByKey(r, page, itup, len, giststate, &v, 0); |