presto-base-jdbc/src/main/java/io/prestosql/plugin/jdbc/JdbcTypeHandle.java/JdbcTypeHandle/equals
class JdbcTypeHandle:    @Override
    public boolean equals(Object o)
    {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        JdbcTypeHandle that = (JdbcTypeHandle) o;
        return jdbcType == that.jdbcType &&
                columnSize == that.columnSize &&
                decimalDigits == that.decimalDigits &&
                Objects.equals(jdbcTypeName, that.jdbcTypeName) &&
                Objects.equals(arrayDimensions, that.arrayDimensions);
    }