| From: | Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org> |
|---|---|
| To: | Jeremy Finzel <finzelj(at)gmail(dot)com> |
| Cc: | PostgreSQL mailing lists <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Identifying ALTER TABLE "sub-command" |
| Date: | 2018-01-11 16:25:22 |
| Message-ID: | 20180111162522.fbfwt5v5hr3b6s4v@alvherre.pgsql |
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| Lists: | pgsql-hackers |
Jeremy Finzel wrote:
> Hello -
>
> I have found that in leveraging the parser code to decode DDL SQL, it is
> very easy to get which type of general command is being issued with
> CreateCommandTag(parsetree). However, is there a way (or a starting point)
> to identify the sub-command as well i.e. ENABLE TRIGGER, ADD FOREIGN KEY,
> etc.?
Hi Jeremy,
See the test code in src/test/modules/test_ddl_deparse/test_ddl_deparse.c
It might give you some ideas.
--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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