fn build(self, ctx: &mut SessionContext) {
        let Self { tables } = self;

        for (table_name, table_builder) in tables {
            debug!(%table_name, "registering system table");
            table_builder.build(ctx);
        }
    }
/// register a table provider for this system table
register a table provider for this system table
register a table provider for this system table
fn build(self, ctx: &mut SessionContext) {
        let Self { tables } = self;
        for (table_name, table_builder) in tables {
            debug!(%table_name, "registering system table");
            table_builder.build(ctx);
        }
    }
fn build ( self , ctx : & mut SessionContext ) { let Self { tables } = self ; for ( table_name , table_builder ) in tables { debug ! ( table_name " " ) ; table_builder . build ( ctx ) ; } }
register a table provider for this system table
register a table provider for this system table
self
ctx
&mut SessionContext
self
ctx
&mut SessionContext