Row Count Estimation for Volcano Optimizer

2019-05-20 Thread Alireza Samadian
about ExternalCatalog and I am not sure even what it is. I will appreciate if someone guides me or send me some links or examples. Best, Alireza Samadian

Re: Row Count Estimation for Volcano Optimizer

2019-05-21 Thread Alireza Samadian
rel/core/TableScan.java#L87 > [3] > > https://github.com/apache/calcite/blob/2765791e60c46e0d66a3c510a5c91d16fe757720/core/src/test/java/org/apache/calcite/test/RelMetadataTest.java#L1006 > > On Mon, May 20, 2019 at 6:55 PM Alireza Samadian > wrote: > > > Hi, >

Streams Query Optimization Using Rate and Window Size

2019-07-02 Thread Alireza Samadian
e cost when the nodes are physical? I will appreciate if someone can help me. I will also appreciate if someone has other suggestions for streams query optimization. Best, Alireza Samadian [1] Ayad, Ahmed M., and Jeffrey F. Naughton. "Static optimization of conjunctive queries with sliding

Re: Streams Query Optimization Using Rate and Window Size

2019-07-10 Thread Alireza Samadian
tamatis > > > > [1] > > > > > https://github.com/apache/calcite/blob/master/core/src/main/java/org/apache/calcite/rel/metadata/RelMetadataProvider.java > > [2] > > > > > https://github.com/apache/calcite/blob/e8d598a434e8dbadaf756f8c57c748f4d7e16fdf/core/src/test/

Re: Streams Query Optimization Using Rate and Window Size

2019-07-15 Thread Alireza Samadian
e/blob/72c52f46eab7fbe57ae5236ecc3831113684ff71/core/src/main/java/org/apache/calcite/plan/volcano/VolcanoCost.java#L113 > > [5] Viktor Leis, Andrey Gubichev, Atanas Mirchev, Peter A. Boncz, Alfons > > Kemper, Thomas Neumann: How Good Are Query Optimizers, Really? PVLDB > 9