Thread: [DOCS] The multi-column index create fail
The following documentation comment has been logged on the website: Page: https://www.postgresql.org/docs/10/static/gin-tips.html Description: I fail to create multi-column index use following statements: create table t_gin3 (id int, c1 int, c2 int, c3 int, c4 int, c5 int, c6 int, c7 int, c8 int, c9 int); create index idx_t_gin3_1 on t_gin3 using GIN (c1,c2,c3,c4,c5,c6,c7,c8,c9); but the document says gin supports multi-columns -- Sent via pgsql-docs mailing list (pgsql-docs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-docs
You need to install the btree_gin extension, with CREATE EXTENSION, in each database that you want such indexes.
See: https://www.postgresql.org/docs/current/static/btree-gin.html
and
https://www.postgresql.org/docs/current/static/sql-createextension.html
See: https://www.postgresql.org/docs/current/static/btree-gin.html
and
https://www.postgresql.org/docs/current/static/sql-createextension.html
On Mon, Nov 6, 2017 at 3:47 AM, <2512498635@qq.com> wrote:
The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/10/static/gin-tips.html
Description:
I fail to create multi-column index use following statements:
create table t_gin3 (id int, c1 int, c2 int, c3 int, c4 int, c5 int, c6 int,
c7 int, c8 int, c9 int);
create index idx_t_gin3_1 on t_gin3 using GIN
(c1,c2,c3,c4,c5,c6,c7,c8,c9);
but the document says gin supports multi-columns
--
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