datafusion 10.0.0

// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.pub},

//! A "prelude" for users of the datafusion crate.
//!
//! Like the standard library's prelude, this module simplifies importing of
//! common items. Unlike the standard prelude, the contents of this module must
//! be imported manually:
//!
//! ```
//! use datafusion::prelude::*;
//! ```

pub use crate::dataframe::DataFrame;
pub use crate::execution::context::{SessionConfig, SessionContext};
pub use crate::execution::options::{
    AvroReadOptions, CsvReadOptions, NdJsonReadOptions, ParquetReadOptions,
};
pub use crate::logical_plan::{
    approx_percentile_cont, array, ascii, avg, bit_length, btrim, character_length, chr,
    coalesce, col, concat, concat_ws, count, create_udf, date_part, date_trunc, digest,
    exists, in_list, in_subquery, initcap, left, length, lit, lower, lpad, ltrim, max,
    md5, min, not_exists, not_in_subquery, now, octet_length, random, regexp_match,
    regexp_replace, repeat, replace, reverse, right, rpad, rtrim, scalar_subquery,
    sha224, sha256, sha384, sha512, split_part, starts_with, strpos, substr, sum, to_hex,
    translate, trim, upper, Column, Expr, JoinType, Partitioning,
};