apache / apache/datafusion-sqlparser-rs
Fails to parse FORCE INDEX(idx_test)
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描述
```
fn main() -> Result<()> {
use sqlparser::dialect::GenericDialect;
use sqlparser::parser::Parser;
let dialect = GenericDialect {}; // or AnsiDialect, or MySqlDialect
let sql = "SELECT a, b, 123, myfunc(b) \
FROM table_1 FORCE INDEX (idx_name)\
WHERE a > b AND b < 100 \
ORDER BY a DESC, b";
let ast = Parser::parse_sql(&dialect, sql).unwrap();
println!("AST: {:?}", ast);
Ok(())
}
```
throws
```
DEBUG sqlparser::dialect: get_next_precedence_full() TokenWithSpan { token: Word(Word { value: "FROM", quote_style: None, keyword: FROM }), span: Span(Location(1,29)..Location(1,33)) }
2025-02-10T19:22:33.781308Z DEBUG sqlparser::parser: next precedence: 0
thread 'main' panicked at standalone/src/main.rs:19:48:
called `Result::unwrap()` on an `Err` value: ParserError("Expected: end of statement, found: INDEX at Line: 1, Column: 48")
stack backtrace:
0: rust_begin_unwind
at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:665:5
1: core::panicking::panic_fmt
at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/panicking.rs:76:14
2: core::result::unwrap_failed
at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/result.rs:1699:5
3: core::result::Result::unwrap
at /Users/jasonhansen/.rustup/toolchains/stable-aarch64-apple-darwin/lib/rustlib/src/rust/library/core/src/result.rs:1104:23
4: standalone::main
at ./src/main.rs:19:15
5: core::ops::function::FnOnce::call_once
at /Users/jasonhansen/.rustup/toolchains/stable-aarch64-apple-darwin/lib/rustlib/src/rust/library/core/src/ops/function.rs:250:5
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
```
贡献指南
这个仓库没有索引到贡献指南
调研方向
首先在 standalone/src/main.rs 中使用 GenericDialect、AnsiDialect 和 MySqlDialect 运行复现,然后跟踪处理 FROM 子句和 FORCE INDEX 的解析器入口点。当提供的 SELECT 在没有报告的 INDEX 错误的情况下完成解析,并且成功生成结果 AST 时,即视为完成。
由索引模型根据 Issue 内容生成。
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