Re: Support logical replication of DDLs

>
> Attached please find a new solution that skips the deparsing of ALTER TABLE
> subcommands generated for TableLikeClause. The patch v42-0005 added a new
> boolean field table_like to AlterTableStmt in order to identify an ALTER TABLE
> subcommand generated internally for the TableLikeClause.
>
> Regards,
> Zheng

I took a look at this patch and it appears to be incomplete.

> @@ -1974,6 +1974,7 @@ typedef struct AlterTableStmt
> List *cmds; /* list of subcommands */
> ObjectType objtype; /* type of object */
> bool missing_ok; /* skip error if table missing */
> + bool table_like; /* internally generated for TableLikeClause */
> } AlterTableStmt;

The table_like field should include implementations of the `copynode`
and `equalnode `methods.