Anand, Just a small request that if the responses others gave resolved your issue, it would be great if you could post the resolution on your Stack Overflow question. Thanks!
https://stackoverflow.com/questions/51994631/assign-alias-to-a-column-in-calcite-relbuilder -- Michael Mior mm...@apache.org Le jeu. 23 août 2018 à 17:54, Anand Gupta <anand....@gmail.com> a écrit : > Hi All, > > I am using RelBuilder to build relational expression and then converting it > to a SQL query using Rel2SqlConverter. I skimmed through the examples of > RelBuilder > < > https://github.com/apache/calcite/blob/master/core/src/test/java/org/apache/calcite/examples/RelBuilderExample.java > > > but > couldn't figure out a way to assign an alias to a column name. > > I am able to select columns from a table and create a query like > > "select col1, col2, col3 from table1" > > However, I want to do something like > > "select col1 as t1, col2 as t2, col3 as n9 from table1" > > Ideally, there should be a way to set an alias while projecting the > columns. However, I couldn't find it. I found two relevant methods "as" and > "alias" in the code. However, couldn't make them work - "as" only works on > table and "alias" refer to table name alias. > > Any suggestion on how to make this work will be appreciated. > > Thanks, > -A >
