gluesql-core 0.20.0

GlueSQL - Open source SQL database engine fully written in Rust with pure functional execution layer, easily swappable storage and web assembly support!
Documentation 
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use {
    super::Store,
    crate::{
        plan::StatementPlan,
        planner::{
            fetch_schema_map, plan_aggregate, plan_hash_join, plan_primary_key, plan_schemaless,
            validate,
        },
        result::Result,
    },
};

pub trait Planner: Store {
    fn plan(&self, statement: StatementPlan) -> Result<StatementPlan> {
        let schema_map = fetch_schema_map(self, &statement)?;
        validate(&schema_map, &statement)?;

        let statement = plan_schemaless(&schema_map, statement)?;
        let statement = plan_primary_key(&schema_map, statement);
        let statement = plan_hash_join(&schema_map, statement);
        let statement = plan_aggregate(statement);

        Ok(statement)
    }
}