We can index multiple scalar values per row with GIN access method,
and also can index single vector value per row with GiST AM.

Is it worth having a new AM to index multiple vector values per row?
It will be an AM for the missing feature in below:

                | scalar | vector |
 single per row | btree  | gist   |
 multi per row  | gin    | *HERE* |

We can call the new AM "gigist". Or, there might be another idea
to support expression indexes for SRF functions, like
  =# CREATE TABLE tbl (c circle[]);
  =# CREATE INDEX ON tbl USING gist (unnest(c));

Comments and ideas welcome.

Takahiro Itagaki
NTT Open Source Software Center

Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org)
To make changes to your subscription:

Reply via email to