An efficient query engine in Scala programming language
For testing the interpreter, go to lego-core project using project lego-core.
Then for running query X with scaling factor N you have to run the following command:
run DATA_FOLDER N QX
To generate code the first command that must be run is:
embedAll
in project legocompiler
To generate C code, you can run the following command in the legocompiler project in sbt:
run DATA_FOLDER N QX_C
where N is the TPCH scaling factor and X in [0,22]
The generated code will appear in the generator-out folder, which can then be compiled using a traditional C compiler (CLANG/GCC).
For testing the compiler (Scala generated code), first you have to generate the code.
For that purpose you have to go to legocompiler project using project legocompiler.
Then for generating query X with scaling factor N you have to run the following command:
generate-test DATA_FOLDER N QX
Then for testing the correctness you have copy the generated file into test folder of legocompiler project.
Then you have to run the following command:
test:run DATA_FOLDER N QX
For testing all TPCH queries with Scala code generator, in legocompiler project,
you should run generate-test DATA_FOLDER N testsuite-scala.
Then you should publish lego-core project using lego-core/publish-local.
Afterwards, you have set your the environment SCALA_PATH to the folder which contains scalac.
Finally, you have to go to generator-out folder and run ./run_scala.sh DATA_FOLDER N.