I think it would be much better to leverage something like CONVERT_FROM(col, 'MyKeyValueFormat') where the entire key/value cell is parsed into Drill's internal structure just like we do with JSON. That exposes all those key/value pairs such that you can leverage them in other SQL operators.
On Wed, Oct 7, 2015 at 7:32 AM, Tugdual Grall <tugd...@gmail.com> wrote: > You can create a custom function to do that: > - https://drill.apache.org/docs/develop-custom-functions/ > > this will end with something like: > select * > from *.csv > where GET_VALUE(col[x] , 'var1' ) = 'value' > > (I will publish, in the next few day, a similar function parsing URL in > values in this repo : https://github.com/mapr-demos/simple-drill-functions > ) > > t > > On Wed, Oct 7, 2015 at 4:22 PM, <michael.engl...@nomura.com> wrote: > > > Hi, > > > > If I have a separated file (PSV/TSV etc) with a number of columns, each > > with a single value aside from the last column which contains a bunch of > > key value pairs in a string e.g. var1=test var2=test var3=test. Is it > > possible to query based on individual key/value items in the last > column? I > > am looking to querying nested data without using LIKE wildcards in where > > statements (I am not sure this is possible with separated text data). > > > > Does anyone have any advice on whether this is possible? > > > > Thanks, > > Mike > > > > > > This e-mail (including any attachments) is private and confidential, may > > contain proprietary or privileged information and is intended for the > named > > recipient(s) only. Unintended recipients are strictly prohibited from > > taking action on the basis of information in this e-mail and must contact > > the sender immediately, delete this e-mail (and all attachments) and > > destroy any hard copies. Nomura will not accept responsibility or > liability > > for the accuracy or completeness of, or the presence of any virus or > > disabling code in, this e-mail. If verification is sought please request > a > > hard copy. Any reference to the terms of executed transactions should be > > treated as preliminary only and subject to formal written confirmation by > > Nomura. Nomura reserves the right to retain, monitor and intercept e-mail > > communications through its networks (subject to and in accordance with > > applicable laws). No confidentiality or privilege is waived or lost by > > Nomura by any mistransmission of this e-mail. Any reference to "Nomura" > is > > a reference to any entity in the Nomura Holdings, Inc. group. Please read > > our Electronic Communications Legal Notice which forms part of this > e-mail: > > http://www.Nomura.com/email_disclaimer.htm > > > > > -- Tomer Shiran CEO and Co-Founder, Dremio
