Hi Team,

I am seeing several jiras proposing removing functions from Hive:
HIVE-18691 Drop Support for Explicit Table Lock From Apache Hive
HIVE-18692 Remove HPL/SQL From Apache Hive
HIVE-18448 Drop Support For Indexes From Apache Hive
I generally agree with removing unused functions. Especially ones which add 
extra effort to upkeep without real user base.
My question is wether Hive has a deprecation policy for function deprecation 
like Hadoop:
https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-common/Compatibility.html#Deprecation
 
<https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-common/Compatibility.html#Deprecation>

Thanks,
Peter

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