diff options
| -rw-r--r-- | contrib/pageinspect/brinfuncs.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/contrib/pageinspect/brinfuncs.c b/contrib/pageinspect/brinfuncs.c index b2e266c9f07..aa6bd0bc978 100644 --- a/contrib/pageinspect/brinfuncs.c +++ b/contrib/pageinspect/brinfuncs.c @@ -46,8 +46,23 @@ brin_page_type(PG_FUNCTION_ARGS) { bytea *raw_page = PG_GETARG_BYTEA_P(0); Page page = VARDATA(raw_page); + int raw_page_size; char *type; + if (!superuser()) + ereport(ERROR, + (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE), + (errmsg("must be superuser to use raw page functions")))); + + raw_page_size = VARSIZE(raw_page) - VARHDRSZ; + + if (raw_page_size != BLCKSZ) + ereport(ERROR, + (errcode(ERRCODE_INVALID_PARAMETER_VALUE), + errmsg("input page too small"), + errdetail("Expected size %d, got %d", + BLCKSZ, raw_page_size))); + switch (BrinPageType(page)) { case BRIN_PAGETYPE_META: @@ -79,11 +94,12 @@ verify_brin_page(bytea *raw_page, uint16 type, const char *strtype) raw_page_size = VARSIZE(raw_page) - VARHDRSZ; - if (raw_page_size < SizeOfPageHeaderData) + if (raw_page_size != BLCKSZ) ereport(ERROR, (errcode(ERRCODE_INVALID_PARAMETER_VALUE), errmsg("input page too small"), - errdetail("Expected size %d, got %d", raw_page_size, BLCKSZ))); + errdetail("Expected size %d, got %d", + BLCKSZ, raw_page_size))); page = VARDATA(raw_page); @@ -316,6 +332,11 @@ brin_metapage_info(PG_FUNCTION_ARGS) bool nulls[4]; HeapTuple htup; + if (!superuser()) + ereport(ERROR, + (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE), + (errmsg("must be superuser to use raw page functions")))); + page = verify_brin_page(raw_page, BRIN_PAGETYPE_META, "metapage"); /* Build a tuple descriptor for our result type */ |