Cannot use column in a like expression
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- Rust
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Description
Description
A column expression is not accepted in LIKE condition
Steps to Reproduce
I have a table containing strings that are patterns (they contain wildcards like % and _). I need to get only the rows where this pattern column match a string literal
This is a query example that is working in sqlite:
SELECT * FROM request_limit where 'https://api.ibkr.com/v1/api/iserver/account/order/status/123' like target;
I am trying to reproduce this query with the following code:
entities::request_limit::Entity::find()
.select_only()
.column(entities::request_limit::Column::Requests)
.column(entities::request_limit::Column::TimeUnitMs)
.column(entities::request_limit::Column::ConcurrentRequests)
.filter(Expr::value(target).like(Expr::col(entities::request::Column::Target)));
Expected Behavior
Compiles successfully
Actual Behavior
I get an error:
required for `sea_orm::sea_query::Expr` to implement `IntoLikeExpr`
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start at the Expr::value(target).like(Expr::col(...)) entry point and investigate the IntoLikeExpr compilation error in the supplied Rust reproduction. Compare the expression types supported by the query builder and verify the expected result by confirming that a column can be used in the LIKE condition and the example compiles.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust, sql
- Domain
- database
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Active
- Clarity
- Mostly clear
- Newbie friendliness
- 68/100