[GitHub] [samza] srinipunuru opened a new pull request #979: SAMZA-2110 : Support for deleting records from a table

[GitBox <gi...@apache.org>]

srinipunuru opened a new pull request #979: SAMZA-2110 : Support for deleting records from a table
URL: https://github.com/apache/samza/pull/979
 
 
   1. Commit adds support for deleting records from table by adding a special __op__ field. SQL users can use this field to say whether the row needs to be deleted in the output table. This is a stop mechanism till we support DELETE operation in SQL. 
   2. Adds support for pluggable RelProviders to add the special fields __key__. This is useful if the relProvider knows the type of __key__ and wants to set it explicitly.

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