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InsertPgAttributeTuple() to set attcacheoff

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InsertPgAttributeTuple() is the interface between in-memory tuple
descriptors and on-disk pg_attribute, so it makes sense to give it the
job of resetting attcacheoff.  This avoids having all the callers having
to do so.

Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
This commit is contained in:
Peter Eisentraut 2018-07-17 09:48:29 +02:00
parent 520acab171
commit e4597ee65d
3 changed files with 4 additions and 11 deletions
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9
src/backend/catalog/heap.c
View File

@ -592,8 +592,8 @@ CheckAttributeType(const char *attname,
* Construct and insert a new tuple in pg_attribute.
*
* Caller has already opened and locked pg_attribute. new_attribute is the
* attribute to insert (but we ignore attacl and attoptions, which are always
* initialized to NULL).
* attribute to insert. attcacheoff is always initialized to -1, attacl and
* attoptions are always initialized to NULL.
*
* indstate is the index state for CatalogTupleInsertWithInfo. It can be
* passed as NULL, in which case we'll fetch the necessary info. (Don't do
@ -620,7 +620,7 @@ InsertPgAttributeTuple(Relation pg_attribute_rel,
values[Anum_pg_attribute_attlen - 1] = Int16GetDatum(new_attribute->attlen);
values[Anum_pg_attribute_attnum - 1] = Int16GetDatum(new_attribute->attnum);
values[Anum_pg_attribute_attndims - 1] = Int32GetDatum(new_attribute->attndims);
values[Anum_pg_attribute_attcacheoff - 1] = Int32GetDatum(new_attribute->attcacheoff);
values[Anum_pg_attribute_attcacheoff - 1] = Int32GetDatum(-1);
values[Anum_pg_attribute_atttypmod - 1] = Int32GetDatum(new_attribute->atttypmod);
values[Anum_pg_attribute_attbyval - 1] = BoolGetDatum(new_attribute->attbyval);
values[Anum_pg_attribute_attstorage - 1] = CharGetDatum(new_attribute->attstorage);
@ -689,9 +689,8 @@ AddNewAttributeTuples(Oid new_rel_oid,
attr = TupleDescAttr(tupdesc, i);
/* Fill in the correct relation OID */
attr->attrelid = new_rel_oid;
/* Make sure these are OK, too */
/* Make sure this is OK, too */
attr->attstattarget = -1;
attr->attcacheoff = -1;
InsertPgAttributeTuple(rel, attr, indstate);

5
src/backend/catalog/index.c
View File

@ -557,12 +557,7 @@ AppendAttributeTuples(Relation indexRelation, int numatts)
{
Form_pg_attribute attr = TupleDescAttr(indexTupDesc, i);
/*
* There used to be very grotty code here to set these fields, but I
* think it's unnecessary. They should be set already.
*/
Assert(attr->attnum == i + 1);
Assert(attr->attcacheoff == -1);
InsertPgAttributeTuple(pg_attribute, attr, indstate);
}

1
src/backend/commands/tablecmds.c
View File

@ -5522,7 +5522,6 @@ ATExecAddColumn(List **wqueue, AlteredTableInfo *tab, Relation rel,
attribute.atttypid = typeOid;
attribute.attstattarget = (newattnum > 0) ? -1 : 0;
attribute.attlen = tform->typlen;
attribute.attcacheoff = -1;
attribute.atttypmod = typmod;
attribute.attnum = newattnum;
attribute.attbyval = tform->typbyval;