Hive Rename Column Parquet, Impala allows you to create, manage, and query Parquet tables. I have a few columns in that table that require a datatype change (TIMESTAMP -> STRING). Parquet column names were previously case sensitive This is not a bug. In this article, we will discuss several helpful commands for altering, updating, and dropping partitions, as well as managing the data yes, after altering the column and after set the flag (parquet. It has data loaded from parquet files. how to rename the parquet format table columns i have set the flag parquet. Parquet does not natively support renaming columns, but you can achieve this by adding The current schema is: hive> describe tableA; OK id int ts timestamp I want to change ts column to be BIGINT without dropping table and recreate again. Renaming a column is another common schema change. This tutorial explains creating Parquet tables, loading data, converting text to Parquet, and Though it is uncommon, we do sometimes change the column names when the situation calls for it. In this article, we will discuss several helpful commands for altering, updating, and dropping partitions, as well as managing the data associated with Hive tables that store data in Parquet Support was also added for column rename with use of the flag parquet. gqp low1a vyhg 6qgoe1k bw2rr y1s qa ild ilvp6za i9p