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feat: add insert/select generator & translator (#3240)
* feat: add insert into expr generator & translator * feat: add select expr generator & translator * chore: apply suggestions from CR * fix: fix unit tests
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| Original file line number | Diff line number | Diff line change |
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@@ -14,6 +14,8 @@ | |
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| pub mod alter_expr; | ||
| pub mod create_expr; | ||
| pub mod insert_expr; | ||
| pub mod select_expr; | ||
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| use std::fmt; | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,70 @@ | ||
| // Copyright 2023 Greptime Team | ||
| // | ||
| // Licensed 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. | ||
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| use std::marker::PhantomData; | ||
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| use derive_builder::Builder; | ||
| use rand::seq::SliceRandom; | ||
| use rand::Rng; | ||
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| use crate::context::TableContextRef; | ||
| use crate::error::{Error, Result}; | ||
| use crate::fake::WordGenerator; | ||
| use crate::generator::{Generator, Random}; | ||
| use crate::ir::generate_random_value; | ||
| use crate::ir::insert_expr::InsertIntoExpr; | ||
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| /// Generates [InsertIntoExpr]. | ||
| #[derive(Builder)] | ||
| #[builder(pattern = "owned")] | ||
| pub struct InsertExprGenerator<R: Rng + 'static> { | ||
| table_ctx: TableContextRef, | ||
| #[builder(default = "1")] | ||
| rows: usize, | ||
| #[builder(default = "Box::new(WordGenerator)")] | ||
| word_generator: Box<dyn Random<String, R>>, | ||
| #[builder(default)] | ||
| _phantom: PhantomData<R>, | ||
| } | ||
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| impl<R: Rng + 'static> Generator<InsertIntoExpr, R> for InsertExprGenerator<R> { | ||
| type Error = Error; | ||
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| /// Generates the [CreateTableExpr]. | ||
| fn generate(&self, rng: &mut R) -> Result<InsertIntoExpr> { | ||
| let mut columns = self.table_ctx.columns.clone(); | ||
| columns.shuffle(rng); | ||
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| let mut rows = Vec::with_capacity(self.rows); | ||
| for _ in 0..self.rows { | ||
| let mut row = Vec::with_capacity(columns.len()); | ||
| for column in &columns { | ||
| // TODO(weny): generates the special cases | ||
| row.push(generate_random_value( | ||
| rng, | ||
| &column.column_type, | ||
| Some(self.word_generator.as_ref()), | ||
| )); | ||
| } | ||
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| rows.push(row); | ||
| } | ||
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| Ok(InsertIntoExpr { | ||
| table_name: self.table_ctx.name.to_string(), | ||
| columns, | ||
| rows, | ||
| }) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| // Copyright 2023 Greptime Team | ||
| // | ||
| // Licensed 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. | ||
|
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| use std::marker::PhantomData; | ||
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| use derive_builder::Builder; | ||
| use rand::seq::SliceRandom; | ||
| use rand::Rng; | ||
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| use crate::context::TableContextRef; | ||
| use crate::error::{Error, Result}; | ||
| use crate::generator::Generator; | ||
| use crate::ir::select_expr::{Direction, SelectExpr}; | ||
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| #[derive(Builder)] | ||
| #[builder(pattern = "owned")] | ||
| pub struct SelectExprGenerator<R: Rng + 'static> { | ||
| table_ctx: TableContextRef, | ||
| #[builder(default = "8192")] | ||
| max_limit: usize, | ||
| #[builder(default)] | ||
| _phantom: PhantomData<R>, | ||
| } | ||
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| impl<R: Rng + 'static> Generator<SelectExpr, R> for SelectExprGenerator<R> { | ||
| type Error = Error; | ||
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| fn generate(&self, rng: &mut R) -> Result<SelectExpr> { | ||
| let selection = rng.gen_range(1..self.table_ctx.columns.len()); | ||
| let mut selected_columns = self | ||
| .table_ctx | ||
| .columns | ||
| .choose_multiple(rng, selection) | ||
| .cloned() | ||
| .collect::<Vec<_>>(); | ||
| selected_columns.shuffle(rng); | ||
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| let order_by_selection = rng.gen_range(1..selection); | ||
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| let order_by = selected_columns | ||
| .choose_multiple(rng, order_by_selection) | ||
| .map(|c| c.name.to_string()) | ||
| .collect::<Vec<_>>(); | ||
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| let limit = rng.gen_range(1..self.max_limit); | ||
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| let direction = if rng.gen_bool(1.0 / 2.0) { | ||
| Direction::Asc | ||
| } else { | ||
| Direction::Desc | ||
| }; | ||
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| Ok(SelectExpr { | ||
| table_name: self.table_ctx.name.to_string(), | ||
| columns: selected_columns, | ||
| order_by, | ||
| direction, | ||
| limit, | ||
| }) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| // Copyright 2023 Greptime Team | ||
| // | ||
| // Licensed 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. | ||
|
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| use datatypes::value::Value; | ||
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| use crate::ir::Column; | ||
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| pub type RowValue = Vec<Value>; | ||
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| pub struct InsertIntoExpr { | ||
| pub table_name: String, | ||
| pub columns: Vec<Column>, | ||
| pub rows: Vec<RowValue>, | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| // Copyright 2023 Greptime Team | ||
| // | ||
| // Licensed 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. | ||
|
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| use std::fmt::Display; | ||
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| use crate::ir::Column; | ||
|
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| pub enum Direction { | ||
| Asc, | ||
| Desc, | ||
| } | ||
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| impl Display for Direction { | ||
| fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { | ||
| match self { | ||
| Direction::Asc => write!(f, "ASC"), | ||
| Direction::Desc => write!(f, "DESC"), | ||
| } | ||
| } | ||
| } | ||
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| pub struct SelectExpr { | ||
| pub table_name: String, | ||
| pub columns: Vec<Column>, | ||
| pub order_by: Vec<String>, | ||
| pub direction: Direction, | ||
| pub limit: usize, | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
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@@ -21,3 +21,6 @@ pub mod fake; | |
| pub mod generator; | ||
| pub mod ir; | ||
| pub mod translator; | ||
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| #[cfg(test)] | ||
| pub mod test_utils; | ||
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