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create_index.rs
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129 lines (109 loc) · 3.41 KB
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// 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.
use std::{
fmt::{self, Display, Formatter},
sync::Arc,
};
use datafusion::logical_expr::CreateIndex;
use pyo3::{prelude::*, IntoPyObjectExt};
use crate::{common::df_schema::PyDFSchema, sql::logical::PyLogicalPlan};
use super::{logical_node::LogicalNode, sort_expr::PySortExpr};
#[pyclass(name = "CreateIndex", module = "datafusion.expr", subclass)]
#[derive(Clone)]
pub struct PyCreateIndex {
create: CreateIndex,
}
impl From<PyCreateIndex> for CreateIndex {
fn from(create: PyCreateIndex) -> Self {
create.create
}
}
impl From<CreateIndex> for PyCreateIndex {
fn from(create: CreateIndex) -> PyCreateIndex {
PyCreateIndex { create }
}
}
impl Display for PyCreateIndex {
fn fmt(&self, f: &mut Formatter) -> fmt::Result {
write!(f, "CreateIndex: {:?}", self.create.name)
}
}
#[pymethods]
impl PyCreateIndex {
#[new]
#[pyo3(signature = (table, columns, unique, if_not_exists, schema, name=None, using=None))]
pub fn new(
table: String,
columns: Vec<PySortExpr>,
unique: bool,
if_not_exists: bool,
schema: PyDFSchema,
name: Option<String>,
using: Option<String>,
) -> PyResult<Self> {
Ok(PyCreateIndex {
create: CreateIndex {
name,
table: table.into(),
using,
columns: columns.iter().map(|c| c.clone().into()).collect(),
unique,
if_not_exists,
schema: Arc::new(schema.into()),
},
})
}
pub fn name(&self) -> Option<String> {
self.create.name.clone()
}
pub fn table(&self) -> PyResult<String> {
Ok(self.create.table.to_string())
}
pub fn using(&self) -> Option<String> {
self.create.using.clone()
}
pub fn columns(&self) -> Vec<PySortExpr> {
self.create
.columns
.iter()
.map(|c| c.clone().into())
.collect()
}
pub fn unique(&self) -> bool {
self.create.unique
}
pub fn if_not_exists(&self) -> bool {
self.create.if_not_exists
}
pub fn schema(&self) -> PyDFSchema {
(*self.create.schema).clone().into()
}
fn __repr__(&self) -> PyResult<String> {
Ok(format!("CreateIndex({self})"))
}
fn __name__(&self) -> PyResult<String> {
Ok("CreateIndex".to_string())
}
}
impl LogicalNode for PyCreateIndex {
fn inputs(&self) -> Vec<PyLogicalPlan> {
vec![]
}
fn to_variant<'py>(&self, py: Python<'py>) -> PyResult<Bound<'py, PyAny>> {
self.clone().into_bound_py_any(py)
}
}