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  • Tom Lane's avatar
    4509b4eb
    Further patch rangetypes_selfuncs.c's statistics slot management. · 4509b4eb
    Tom Lane authored 
    Values in a STATISTIC_KIND_RANGE_LENGTH_HISTOGRAM slot are float8,
not of the type of the column the statistics are for.

This bug is at least partly the fault of sloppy specification comments
for get_attstatsslot()/free_attstatsslot(): the type OID they want is that
of the stavalues entries, not of the underlying column.  (I double-checked
other callers and they seem to get this right.)  Adjust the comments to be
more correct.

Per buildfarm.

Security: CVE-2017-7484
    4509b4eb
    History
    Further patch rangetypes_selfuncs.c's statistics slot management.
    Tom Lane authored 
    Values in a STATISTIC_KIND_RANGE_LENGTH_HISTOGRAM slot are float8,
not of the type of the column the statistics are for.

This bug is at least partly the fault of sloppy specification comments
for get_attstatsslot()/free_attstatsslot(): the type OID they want is that
of the stavalues entries, not of the underlying column.  (I double-checked
other callers and they seem to get this right.)  Adjust the comments to be
more correct.

Per buildfarm.

Security: CVE-2017-7484