Re: PATCH: pageinspect / add page_checksum and bt_page_items(bytea)

From: Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>
To: Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: PATCH: pageinspect / add page_checksum and bt_page_items(bytea)
Date: 2017-03-03 14:03:57
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On 03/03/2017 05:09 AM, Robert Haas wrote:
> On Mon, Feb 20, 2017 at 9:43 PM, Tomas Vondra
> <tomas(dot)vondra(at)2ndquadrant(dot)com> wrote:
>> BTW I've noticed the pageinspect version is 1.6, but we only have
>> pageinspect--1.5.sql (and upgrade script to 1.6). Not sure that's entirely
>> intentional?
> Actually, that's the New Way. See 40b449ae84dcf71177d7749a7b0c582b64dc15f0.

Ah, great! Didn't notice that change.

> +extern Datum bt_metap(PG_FUNCTION_ARGS);
> +extern Datum bt_page_items(PG_FUNCTION_ARGS);
> +extern Datum bt_page_items_bytea(PG_FUNCTION_ARGS);
> +extern Datum bt_page_stats(PG_FUNCTION_ARGS);
> Not needed. PG_FUNCTION_INFO_V1 now does it.


> - ...
> This does not seem like a good idea in any way, and the patch has
> several instances of it.

Damn. In my defense, the patch was originally created for an older
PostgreSQL version (to investigate issue on a production system), which
used that approach to building values. Should have notice it, though.

Attached is v2, fixing both issues.


Tomas Vondra
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

Attachment Content-Type Size
0001-pageinspect-page_checksum-and-bt_page_items-bytea-v2.patch binary/octet-stream 10.4 KB

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