expressions need to pass through expressions to DB's about qlbridge HOT 2 OPEN

It is possible.

The exec package is the Query Runtime (a single thread query runtime).

It recognizes Sources (ie, each table name is from a source), each table name is loaded into a schema so that multiple tables can exist in same schema, from different sources.

Each Source TYPE must be implemented to do predicate pushdown (ie, rewrite queries to push down to underlying store). This implementation i call a Generator and basically involves walking the AST of the SQL to re-write and push down.

• This is an example for elasticsearch: #176
• for bigquery (different dialect of sql) https://github.com/dataux/dataux/tree/master/backends/bigquery

This ticket above is referring to the fact that WHICH functions to pass down (and which not to) needs to have a cleaner, better way of deciding.

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Hi, sorry for the questions unrelated to this concrete issue.
Could you say, is it possible to pass expressions/filters to a remote datasource with qlbridge?
For example, if I have a REST API like site.com/rest/users and query like select count(*) from users where name = "Joe", can I pass that filter name=Joe to the REST or I should get all users and then filter locally (like full table scan)?
That is not clear to me from the first glance, sorry =(

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