Thanks! I'm now reading these useful material.
2017-08-03 1:11 GMT+08:00 Tim Armstrong <tarmstr...@cloudera.com>: > There's also a wiki page with some pointers: > https://cwiki.apache.org/confluence/display/IMPALA/Codegen > > On Wed, Aug 2, 2017 at 10:05 AM, Henry Robinson <he...@apache.org> wrote: > > > We don't have a lot of in-depth documentation, partly because the > > implementation details change frequently. > > > > Have you read the Impala paper? > > http://cidrdb.org/cidr2015/Papers/CIDR15_Paper28.pdf > > (here's a summary: > > https://blog.acolyer.org/2015/02/05/impala-a-modern-open- > > source-sql-engine-for-hadoop/ > > ) > > > > There's also an old paper on code generation: > > https://pdfs.semanticscholar.org/bac4/169d6b6f713c76271b5ccf3d452933 > > 51f785.pdf > > > > But the very best thing to read is the source code... > > > > On 2 August 2017 at 09:59, 俊杰陈 <cjjnj...@gmail.com> wrote: > > > > > Hi > > > > > > I’m learning impala code now, is there anyone has any impala doc/PPT > for > > > computing workflow (such as order by), vectorization, and codegen? > > Thanks > > > in advanced. > > > > > > -- > > > Thanks & Best Regards > > > > > > -- Thanks & Best Regards
