[COMMITTERS] pgsql: Backpatch introduction of TupleDescAttr(tupdesc, i).

Backpatch introduction of TupleDescAttr(tupdesc, i).

2cd70845240 / c6293249d change the way individual attributes in a
TupleDesc are stored / accessed.  To reduce the effort of making
extensions compatible with postgresql 11, and to ease future
backpatching, backpatch introduction of TupleDescAttr() to all
releases.  Do not backpatch change in storage, as that'd be a breaking
change for existing and working extensions.

Author: Andres Freund
Discussion: https://postgr.es/m/20170820181723.tdswdinzptbcwhrr@alap3.anarazel.de
Backpatch: 9.2-

Branch
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REL9_2_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/8cda1fadd25b8bd9448c7d161354643906c85650

Modified Files
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src/include/access/tupdesc.h | 3 +++
1 file changed, 3 insertions(+)