[YSQL] Truncate doesn't seem to delete index tables

[ramkumarvs]

# create table test(id int primary key, value int);
CREATE TABLE
# create unique index uq_test_value on test(value);
CREATE INDEX
# insert into test values(1, 2);
INSERT 0 1
# select * from test;
 id | value
----+-------
  1 |     2
(1 row)

# truncate test;
TRUNCATE TABLE
# select * from test;
 id | value
----+-------
(0 rows)

# insert into test values(1, 2);
ERROR:  Query error: Duplicate key found in primary key or unique index

[robertpang]

The issue is fixed in commit b7fa3d9.