sql - Postgres - CREATE TABLE FROM SELECT -


i have 2 tables, 1 contains large list of ids , info regarding ids.

i have second table graph has 2 columns, each column contains aforementioned id numbers, multiple times. want trim size of info table selecting ids appear in graph , creating new smaller info table. there simple way of doing this?

create table select?

thanks!

a

it's easy as:

create table new_table  select t1.col1, t2.col2 some_table t1    join t2 on t1.id = t2.some_id;

you can use select statement that. column names of new table defined column aliases used in th query.

more details in manual: http://www.postgresql.org/docs/current/static/sql-createtableas.html


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