pgsql: doc: Mention oid8 TOAST values in the limits appendix

doc: Mention oid8 TOAST values in the limits appendix

limits.sgml mentioned the limit related to oid values in TOAST tables,
where up to 2^32 out-of-line values can be stored. This section did not
mention oid8 values, able to lift this limitation, for up to 2^64
out-of-line values.

Oversight in 6e58d6356fcb.

Reported-by: John Naylor <johncnaylorls(at)gmail(dot)com>
Author: Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com>
Reviewed-by: Michael Paquier <michael(at)paquier(dot)xyz>
Discussion: https://postgr.es/m/CANWCAZa+pWZL1Zjep1pz1F0sVWwNOQf+QfGErOaiUvC10Yr2XA@mail.gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/74b89f8f968de13d653642b0a21521d20b71af61

Modified Files
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doc/src/sgml/limits.sgml | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)