SHOW CREATE INDEX

Syntax

SHOW CREATE INDEX index_name;

Parameter	Description
index_name	The index to show the query of.

We can create a table t3 and an index idx1 on t3.

CREATE TABLE IF NOT EXISTS t3 (
    v1 int,
    v2 int,
    v3 int);

CREATE INDEX idx1 ON t3 (v1,v2);

Next, we can use the SHOW CREATE INDEX command on idx1 to see the query used.

SHOW CREATE INDEX idx1;

    Name     |           Create Sql
-------------+---------------------------------
 public.idx1 | CREATE INDEX idx1 ON t3(v1, v2)
(1 row)