DELETE doesn't work when specifying a float key via JDBC
## The problem
Jira Link: [DB-7435](https://yugabyte.atlassian.net/browse/DB-7435) I noticed DELETE statement in YugabyteDB can't delete records when specifying a float key via JDBC. I think you can reproduce this issue using the following code.
## The fix
[andrei-mart (contributor)]: Float keys fail exact-equality lookups in YugabyteDB due to internal float rounding. Never test floats for exact equality: use the numeric type or an almost-equal comparison instead. PostgreSQL and MySQL docs carry the same warning.