| // 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::{ExecutionConfig, ExecutionContext}; |
| pub use crate::logical_plan::{ |
| array, avg, bit_length, btrim, character_length, col, concat, concat_ws, count, |
| create_udf, in_list, left, length, lit, lower, lpad, ltrim, max, md5, min, |
| octet_length, right, rpad, rtrim, sha224, sha256, sha384, sha512, substr, sum, trim, |
| upper, JoinType, Partitioning, |
| }; |
| pub use crate::physical_plan::csv::CsvReadOptions; |
