DROP INDEX statement
The DROP INDEX statement drops an
index for a base table (see table). The metadata of the index is dropped from the catalog. The storage space occupied by the index is released.Syntax
<drop_index_statement> ::=
DROP INDEX <table_name>.<column_name>
| DROP INDEX <index_name> [ON <table_name>]
Explanation
The specified index must exist and the specified table name must be the name of an existing base table.
ON <table_name>
is not necessary if the index name identifies an index unambiguously.The current user must be the owner of the specified table or have the INDEX privilege for it.