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Identity columns

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This is the SQL standard-conforming variant of PostgreSQL's serial
columns.  It fixes a few usability issues that serial columns have:

- CREATE TABLE / LIKE copies default but refers to same sequence
- cannot add/drop serialness with ALTER TABLE
- dropping default does not drop sequence
- need to grant separate privileges to sequence
- other slight weirdnesses because serial is some kind of special macro

Reviewed-by: Vitaly Burovoy <vitaly.burovoy@gmail.com>
This commit is contained in:
Peter Eisentraut
2017-04-06 08:33:16 -04:00
parent 6bad580d9e
commit 3217327053
57 changed files with 2140 additions and 202 deletions
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src/backend/utils/cache/relcache.c vendored
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@ -3268,6 +3268,7 @@ RelationBuildLocalRelation(const char *relname,
has_not_null = false;
for (i = 0; i < natts; i++)
{
rel->rd_att->attrs[i]->attidentity = tupDesc->attrs[i]->attidentity;
rel->rd_att->attrs[i]->attnotnull = tupDesc->attrs[i]->attnotnull;
has_not_null |= tupDesc->attrs[i]->attnotnull;
}