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Create a separate oid range for oids assigned by genbki.pl.

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The changes I made in 578b229718 assigned oids below
FirstBootstrapObjectId to objects in include/catalog/*.dat files that
did not have an oid assigned, starting at the max oid explicitly
assigned.  Tom criticized that for mainly two reasons:
1) It's not clear which values are manually and which explicitly
   assigned.
2) The space below FirstBootstrapObjectId gets pretty crowded, and
   some PostgreSQL forks have used oids >= 9000 for their own objects,
   to avoid conflicting.

Thus create a new range for objects not assigned explicit oids, but
assigned by genbki.pl. For now 1-9999 is for explicitly assigned oids,
FirstGenbkiObjectId (10000) to FirstBootstrapObjectId (1200) -1 is for
genbki.pl assigned oids, and < FirstNormalObjectId (16384) is for oids
assigned during bootstrap.  It's possible that we'll have to adjust
these boundaries, but there's some headroom for now.

Add a note suggesting that oids in forks should be assigned in the
9000-9999 range.

Catversion bump for obvious reasons.

Per complaint from Tom Lane.

Author: Andres Freund
Discussion: https://postgr.es/m/16845.1544393682@sss.pgh.pa.us
This commit is contained in:
Andres Freund
2018-12-13 14:50:57 -08:00
parent 84d514887f
commit 09568ec3d3
9 changed files with 47 additions and 33 deletions
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4
contrib/postgres_fdw/shippable.c
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@ -137,7 +137,7 @@ lookup_shippable(Oid objectId, Oid classId, PgFdwRelationInfo *fpinfo)
/*
* Return true if given object is one of PostgreSQL's built-in objects.
*
* We use FirstBootstrapObjectId as the cutoff, so that we only consider
* We use FirstGenbkiObjectId as the cutoff, so that we only consider
* objects with hand-assigned OIDs to be "built in", not for instance any
* function or type defined in the information_schema.
*
@ -154,7 +154,7 @@ lookup_shippable(Oid objectId, Oid classId, PgFdwRelationInfo *fpinfo)
bool
is_builtin(Oid objectId)
{
return (objectId < FirstBootstrapObjectId);
return (objectId < FirstGenbkiObjectId);
}
/*