Re: [bug] Table not have typarray when created by single user mode

2020年4月13日 下午10:51，Tom Lane <tgl@sss.pgh.pa.us> 写道：

wenjing <wjzeng2012@gmail.com> writes:

Use single user mode (t_create_by_standalone) typarray = 0, but use psql t_create_by_psql typarray has oid.

That's because of this in heap_create_with_catalog:

   /*
    * Decide whether to create an array type over the relation's rowtype. We
    * do not create any array types for system catalogs (ie, those made
    * during initdb). We do not create them where the use of a relation as
    * such is an implementation detail: toast tables, sequences and indexes.
    */
   if (IsUnderPostmaster && (relkind == RELKIND_RELATION ||
                             relkind == RELKIND_VIEW ||
                             relkind == RELKIND_MATVIEW ||
                             relkind == RELKIND_FOREIGN_TABLE ||
                             relkind == RELKIND_COMPOSITE_TYPE ||
                             relkind == RELKIND_PARTITIONED_TABLE))
       new_array_oid = AssignTypeArrayOid();

Admittedly, "!IsUnderPostmaster" is not exactly the same thing as "running
during initdb", but I do not consider this a bug.  You generally should
not be using single-user mode for anything except disaster recovery.

regards, tom lane