[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_6_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/6c036d01089cee0c1cbabdd140d00cf24912013e

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