Dropping a secondary index on a table is a simple task:
DROP INDEX [index_name]
If you do not know the name of the index (or created it without a name), you can describe the table to find it. Indexes on a table will appear at the bottom of the definition. Then you can DROP it:
CREATE INDEX ON query_test(c5);DESC TABLE query_test ;CREATE TABLE packt_ch3.query_test ( pk1 text, pk2 text, ck3 text, ck4 text, c5 text, PRIMARY KEY ((pk1, pk2), ck3, ck4)) WITH CLUSTERING ORDER BY (ck3 DESC, ck4 ASC)... AND speculative_retry = '99PERCENTILE';CREATE INDEX query_test_c5_idx ON packt_ch3.query_test (c5);DROP INDEX query_test_c5_idx ;
