This patch cleans up analysis and execution of scalar and aggregate functions
so that there is no difference between how builtins and user functions are
handled. The only difference is that the catalog is populated with the builtins
all the time.
The BE always gets a TFunction object and just executes it (builtins will have
an empty hdfs file location).
This removes the opcode registry and all of the functionality is subsumed by
the catalog, most of which was already duplicated there anyway.
This also introduces the concept of a system database; databases that the
user cannot modify and is populated automatically on startup.
Change-Id: Iaa3f84dad0a1a57691f5c7d8df7305faf01d70ed
Reviewed-on: http://gerrit.ent.cloudera.com:8080/1386
Reviewed-by: Nong Li <nong@cloudera.com>
Tested-by: jenkins
Reviewed-on: http://gerrit.ent.cloudera.com:8080/1577
Adds a builtin FNV hash function. Also renames HashUtil::FvnHash to HashUtil::FnvHash
since it was spelled incorrectly.
Change-Id: Ic6dbfbce58ceeded72442ff22d3cd04f1010ea78
Reviewed-on: http://gerrit.ent.cloudera.com:8080/995
Reviewed-by: Matthew Jacobs <mj@cloudera.com>
Tested-by: Matthew Jacobs <mj@cloudera.com>
Tested-by: jenkins
When codegen is enabled, UDF builtins will be loaded from the IR
module rather than using the native functions. Since we cannot run
UDFs without codegen yet this means UDF builtins can only be run this
way, but once we add support for running UDFs without codegen this
will allow us to switch back to the native functions for
development/debugging.
Change-Id: I948b113c61603801b84f80982384bbc07596f119
Reviewed-on: http://gerrit.ent.cloudera.com:8080/605
Tested-by: jenkins
Reviewed-by: Nong Li <nong@cloudera.com>
There's a bigger change to migrate the rest of them but I think this is how
the builtins, when not running as cross compiled, should be run. This mode
is still useful when developing the builtin.
When run as cross compiled IR, we wouldn't do anything to distinguish between
a builtin and an external UDF.
Change-Id: I6aa336b22aa19b00507bad33c9df3978baa576cc
Reviewed-on: http://gerrit.ent.cloudera.com:8080/542
Tested-by: jenkins
Reviewed-by: Skye Wanderman-Milne <skye@cloudera.com>
