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Backpatch introduction of TupleDescAttr(tupdesc, i).

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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-
This commit is contained in:
Andres Freund 2017-08-22 07:46:05 -07:00
parent 958ffb8c28
commit d34a74dd06
1 changed files with 3 additions and 0 deletions
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src/include/access/tupdesc.h
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@ -81,6 +81,9 @@ typedef struct tupleDesc
} *TupleDesc;
/* Accessor for the i'th attribute of tupdesc. */
#define TupleDescAttr(tupdesc, i) ((tupdesc)->attrs[(i)])
extern TupleDesc CreateTemplateTupleDesc(int natts, bool hasoid);
extern TupleDesc CreateTupleDesc(int natts, bool hasoid,