| From: | Mark Rofail <markm(dot)rofail(at)gmail(dot)com> |
|---|---|
| To: | Joel Jacobson <joel(at)compiler(dot)org> |
| Cc: | Zhihong Yu <zyu(at)yugabyte(dot)com>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, Alexander Korotkov <aekorotkov(at)gmail(dot)com>, Andreas Karlsson <andreas(at)proxel(dot)se>, David Steele <david(at)pgmasters(dot)net>, Erik Rijkers <er(at)xs4all(dot)nl>, Hans-Jürgen Schönig <hs(at)cybertec(dot)at>, Robert Haas <robertmhaas(at)gmail(dot)com>, Stephen Frost <sfrost(at)snowman(dot)net>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, Michael Paquier <michael(at)paquier(dot)xyz> |
| Subject: | Re: [HACKERS] GSoC 2017: Foreign Key Arrays |
| Date: | 2021-01-24 18:24:43 |
| Message-ID: | CAJvoCutCnzsM+-gdZsR5rbt0-3nZBiF9M6b7048+M9OCds1_bw@mail.gmail.com |
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| Lists: | pgsql-hackers |
Hello Joel,
UPDATE catalog_clone.pg_index SET indkey = '1 2 12345'::int2vector WHERE
> indexrelid = 2837;
> ERROR: operator does not exist: int2vector pg_catalog.@> smallint[]
> LINE 1: ...WHERE "attrelid" OPERATOR(pg_catalog.=) $1 AND $2 OPERATOR(p...
>
In your example, you are using the notation '1 2 12345'::int2vector which
signifies a vector as you have mentioned, however in this patch we use the
array operator @> to help with the indexing, the incompatibility stems from
here.
I do not think that postgres contains vector operators, correct me if I am
wrong. I feel that supporting vectors is our of the scope of this patch, if
you have an idea how to support it please let me know.
/Mark
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