apache / apache/datafusion-sqlparser-rs

did sql ast restore sql supported?

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Dominant language
Rust
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Description

like
`
AST: [Query(Query { ctes: [], body: Select(Select { distinct: false, projection: [UnnamedExpr(Identifier("a")), UnnamedExpr(Identifier("b")), UnnamedExpr(Value(Long(123))), UnnamedExpr(Function(Function { name: ObjectName(["myfunc"]), args: [Identifier("b")], over: None, distinct: false }))], from: [TableWithJoins { relation: Table { name: ObjectName(["table_1"]), alias: None, args: [], with_hints: [] }, joins: [] }], selection: Some(BinaryOp { left: BinaryOp { left: Identifier("a"), op: Gt, right: Identifier("b") }, op: And, right: BinaryOp { left: Identifier("b"), op: Lt, right: Value(Long(100)) } }), group_by: [], having: None }), order_by: [OrderByExpr { expr: Identifier("a"), asc: Some(false) }, OrderByExpr { expr: Identifier("b"), asc: None }], limit: None, offset: None, fetch: None })]

`

restore to
`
SELECT a, b, 123, myfunc(b) \
FROM table_1 \
WHERE a > b AND b < 100 \
ORDER BY a DESC, b"
`

Contributor guide

No contributing guide indexed for this repository

Research direction

No file, test, or entry point is named in the issue. Start by locating the AST-to-SQL restoration functionality, then use the supplied AST and expected SELECT output as the acceptance case, including its WHERE and ORDER BY clauses.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust, sql
Domain
databases
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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