Hello, Thank you. I've also CC'ed @hive.apache.org
I went through the dev docs on Hive and got an understanding of the architecture and the high level overview of how a HiveQL query execution proceeds. To get a better understanding, I decided to add a new field from a SQL table when a user describes a table by tweaking the hive meta store, in addition to fields like "Database:", OwnerType:" etc. I added a new hook to obtain a connection to a SQL server and placed a watcher under `startMetaStoreThreads()` in `HiveMetaStore.java`. I then found `getTableMetaDataInformation()` under `MetaDataFormatUtils.java` which populates the various fields like "Database", "OwnerType" etc. by calling getters on the `Table` instance. This lead me to `api/Table.java`, auto-generated by the Thrift compiler, which returns private instances for the getters above. However, I'm unable to understand how these private variables in `metastore/api/Table.java` populated? In other words, when we create a new table in Hive, where exactly is this metadata generated and populated so that it can be later fetched when describing a table? Please let me know if you need any further clarifications on the question! On Mon, Jun 11, 2018 at 12:13 PM, Alan Gates <alanfga...@gmail.com> wrote: > Yes, this is the place to ask dev questions. > > Alan. > > On Mon, Jun 11, 2018 at 12:10 PM Sanchay Javeria <javer...@illinois.edu> > wrote: > > > Hi fellow devs, > > > > I'm a computer science student at UIUC who just got started with Apache > > Hive, I'd love to contribute more towards the open JIRA tickets. > > > > I had some questions if anyone could help :) I was wondering if this > > mailing list is the right space to ask dev questions? > > > > Thank you, > > Sanchay > > >
