Re: [DISCUSSION] Describe complex columns
+1 for this feature Vikram Ahuja
Re: [DISCUSSION] Describe complex columns
Hi, +1 for the feature. Thanks & Regards Mahesh Raju Somalaraju On Thu, Mar 18, 2021 at 10:35 PM Shreelekhya wrote: > Hi, > > Currently describe formatted displays the column information of a table and > some additional information. When complex types such as ARRAY, STRUCT, and > MAP types are present in table, column definition can be long and it’s > difficult to read in a nested format. > > For complex types available, the DESCRIBE output can be formatted to avoid > long lines for multiple fields. We can pass the complex field name to the > command and visualize its structure as if were a table. > > DDL Commands: > DESCRIBE fieldname ON [db_name.]table_name; > DESCRIBE short [db_name.]table_name; > > Please let me know your valid inputs about the same. > Following is the link to the design document. > > > https://docs.google.com/document/d/1uNCByKR09Up9S2hpiEXYDA8XXIEZ2jI9PMSzMIVJ0Js/edit > > > Thanks, > Shreelekhya > > > > -- > Sent from: > http://apache-carbondata-dev-mailing-list-archive.1130556.n5.nabble.com/ >
Re: [DISCUSSION] Describe complex columns
Hi, +1 for this improvement. a) you can also print one line of short information about the parent column when describe column is executed to avoid executing again to know what is parent column type. Example, Describe column decimalcolumn on complexcarbontable; *You can mention that decimalcolumn is a MAP<> type and children are as follows.* b) Are you blocking describe column on primitive type ? or just print short information about the primitive data type. I think the latter one is fine. Thanks, Ajantha On Mon, Mar 22, 2021 at 9:37 PM akashrn5 wrote: > Hi, > > +1 for the new functionality. > > my suggestion is to modify the DDL something like below > > DESCRIBE column fieldname ON [db_name.]table_name; > DESCRIBE table short/transient [db_name.]table_name; > > Others can give their suggestions > > Thanks, > > Regards, > Akash R > > > > -- > Sent from: > http://apache-carbondata-dev-mailing-list-archive.1130556.n5.nabble.com/ >
Re: [DISCUSSION] Describe complex columns
Hi, +1 for the new functionality. my suggestion is to modify the DDL something like below DESCRIBE column fieldname ON [db_name.]table_name; DESCRIBE table short/transient [db_name.]table_name; Others can give their suggestions Thanks, Regards, Akash R -- Sent from: http://apache-carbondata-dev-mailing-list-archive.1130556.n5.nabble.com/
Re: [DISCUSSION] Describe complex columns
+1 Nice idea. It improves the readibility. Regards, Venu -- Sent from: http://apache-carbondata-dev-mailing-list-archive.1130556.n5.nabble.com/
Re: [DISCUSSION] Describe complex columns
+1. Please update design, for Map type having more than one level of complex types. For example, map> Regards, Indhumathi M -- Sent from: http://apache-carbondata-dev-mailing-list-archive.1130556.n5.nabble.com/
Re: [DISCUSSION] Describe complex columns
+1 good idea for visualizing complex columns On Thu, Mar 18, 2021 at 10:35 PM Shreelekhya wrote: > Hi, > > Currently describe formatted displays the column information of a table and > some additional information. When complex types such as ARRAY, STRUCT, and > MAP types are present in table, column definition can be long and it’s > difficult to read in a nested format. > > For complex types available, the DESCRIBE output can be formatted to avoid > long lines for multiple fields. We can pass the complex field name to the > command and visualize its structure as if were a table. > > DDL Commands: > DESCRIBE fieldname ON [db_name.]table_name; > DESCRIBE short [db_name.]table_name; > > Please let me know your valid inputs about the same. > Following is the link to the design document. > > > https://docs.google.com/document/d/1uNCByKR09Up9S2hpiEXYDA8XXIEZ2jI9PMSzMIVJ0Js/edit > > > Thanks, > Shreelekhya > > > > -- > Sent from: > http://apache-carbondata-dev-mailing-list-archive.1130556.n5.nabble.com/ >
[DISCUSSION] Describe complex columns
Hi, Currently describe formatted displays the column information of a table and some additional information. When complex types such as ARRAY, STRUCT, and MAP types are present in table, column definition can be long and it’s difficult to read in a nested format. For complex types available, the DESCRIBE output can be formatted to avoid long lines for multiple fields. We can pass the complex field name to the command and visualize its structure as if were a table. DDL Commands: DESCRIBE fieldname ON [db_name.]table_name; DESCRIBE short [db_name.]table_name; Please let me know your valid inputs about the same. Following is the link to the design document. https://docs.google.com/document/d/1uNCByKR09Up9S2hpiEXYDA8XXIEZ2jI9PMSzMIVJ0Js/edit Thanks, Shreelekhya -- Sent from: http://apache-carbondata-dev-mailing-list-archive.1130556.n5.nabble.com/
