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 On Mon, Nov 6, 2017 at 3:47 AM, <2512498...@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 > > -- > Sent via pgsql-docs mailing list (pgsql-docs@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-docs >
