your test is working I will try to understand where is the problem in my code
b.q. I am looking for a sponsor for this patch, which is a real blocker for me, could you pleas take a look Luis ? https://github.com/apache/calcite/pull/568 Thank you Enrico 2017-11-17 17:45 GMT+01:00 Luis Fernando Kauer <lfka...@yahoo.com.br.invalid >: > Please insert the following test in ScannableTableTest and run: > /** ProjectableFilterableTable project push down using alias. */ > @Test public void testPFPushDownWithAlias() throws Exception { > final StringBuilder buf = new StringBuilder(); > final Table table = new BeatlesProjectableFilterableTable(buf, true); > CalciteAssert.that() > .with(newSchema("s", "beatles", table)) > .query("select \"i\" as theKey from \"s\".\"beatles\"") > .explainContains("EnumerableInterpreter\n" > + " BindableTableScan(table=[[s, beatles]], > projects=[[0]])\n") > .returnsUnordered("THEKEY=4", > "THEKEY=4", > "THEKEY=6", > "THEKEY=5"); } > It passes for me. > You'll need the updated version of this test class, because it was > recently refactored. > It's usually easier for other people to test the problem if you create > runnable test cases to show the problem. Em sexta-feira, 17 de novembro > de 2017 14:29:09 BRST, Enrico Olivelli <eolive...@gmail.com> escreveu: > > In the RowType I have 'k1' and not "thekey" > > Enrico > > 2017-11-17 17:20 GMT+01:00 Luis Fernando Kauer > <lfka...@yahoo.com.br.invalid > >: > > > Did you execute the query? > > ProjectRemoveRule removes the Project when it is "trivial". Since the > > only used project was pushed to BindableTableScan, the Project would only > > set the alias, but that can be done in row type. > > The result is correct because RowType is preserved with the alias. It > > just does not show in the plan. > > However, I seems that repeating a column with different aliases generates > > an error: > > SELECT k1 theKey, k1 theKey2 FROM tblspace1.tsql where k1 ='mykey2' > > > > Regards, > > Luis Fernando > > > > Em sexta-feira, 17 de novembro de 2017 12:27:49 BRST, Enrico Olivelli > < > > eolive...@gmail.com> escreveu: > > > > Hi, > > I have a ProjectableFilterableTable, it seems to me that the BindablaScan > > RelNode does not keep track of column name aliases in the original > > projection > > > > Example: > > > > Query:SELECT k1 theKey FROM tblspace1.tsql where k1 ='mykey2' > > > > -- Logical Plan > > LogicalProject(THEKEY=[$0]) > > LogicalFilter(condition=[=($0, 'mykey2')]) > > EnumerableTableScan(table=[[tblspace1, tsql]]) > > > > -- Best Plan > > EnumerableInterpreter > > BindableTableScan(table=[[tblspace1, tsql]], filters=[[=($0, > > 'mykey2')]], > > projects=[[0]]) > > > > Is this correct ? > > IMHO It would better to keep somethin like an EnumerableProjection which > > renames the fields > > > > Am I missing something ? > > Thanks > > Enrico > > > > > >
