I will reopen the subject a bit.
I don't know the details of the RCFile implementation in Hive but if the
data were stored that way it is theoretically possible to add the column
data even without append and without rewriting the whole file. Does someone
has more information on that matter?
Regar
Put a .hiverc file in your home directory containing commands, Hive CLI
will execute all of them at startup.
Thanks,
Vinod
On Sun, Dec 9, 2012 at 10:25 PM, John Omernik wrote:
> I am looking for ways to streamline some of my analytics. One thing I
> notice is that when I use hive cli, or connec
Hello Shreepadma,
That's definitely very helpful. I doubted that this would be the case,
but I was thinking that maybe there's a way to do it using a merge
task. I will change my data structure to make it a bit like HBase, and
I hope Hive would still be the right choice for me.. it can be b
I don't think you can do this. Populating new columns is the same as "row level
updates" which Hive does not do. AFAIK, your only option is to write a new
table, by reading the old table, selecting all of it, appending new values to
each row, then writing the longer rows to a new table.
Chuck
Hi Younos,
Since HiveQL doesn't support an insert..value statement, you can't insert
values into a specific column. Let's assume your table had the following
structure before the alter table..add columns statement was executed,
tab (a string, b bigint, c double)
Furthermore, let's assume that it
Hello,
I couldn't find any example of how to populate columns that were added
to a table. How would Hive tell which row to append by each value of
the newly added columns? Does it do a column name matching?
Sincerely,
Younos
Hi David,
DROP TABLE is the right command to drop a table. You can look at
the hive logs under "/tmp//hive.log" to see why your shell is
hanging. With dropping an EXTERNAL TABLE, you are guaranteed that the
underlying hbase table won't be touched.
On Sun, Dec 9, 2012 at 6:06 PM, David Koch wro
Hello,
How can I drop a Hive table which was created using "CREATE EXTERNAL
TABLE..."? I tried "DROP TABLE ;" but the shell hangs. The
underlying HBase table should not be deleted. I am using Hive 0.9
Thank you,
/David
Hello,
I tried the shell command which Swarnim kindly provided and it allows me to
map an existing HBase table into Hive. However, since my qualifiers are
long but map only accepts string as a key, the result is garbled. Even with
the suggested patch which allows binary keys, the resulting datatyp
I ended up patching the HiveConf.java . If hive-site.xml were not found
on the classpath then:
- an o.a.h.fs.Path object is created from
System.getenv("HIVE_CONF_DIR") + File.seperator + "hive-site.xml"
- the Path is sent to the base class Configuration.addResource - whiich
btw ac
I am looking for ways to streamline some of my analytics. One thing I
notice is that when I use hive cli, or connect to my hive thrift server,
there are a some commands I always end up running for my session. If I
have multiple CLIs or connections to Thrift, then I have to run it each
time. If I l
The first element of the classpath is the right one already.. but I STILL
get the hive-site.xml is not found in classpath. Only hive gives me
issues. hdfs, mapred, hbase are all running fine.
HADOOP_CLASSPATH=:*/shared/hive/conf:*
/shared/hive/lib/antlr-runtime-3.0.1.jar:/shared/hive/lib/commons
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