,
Shyam Sarkar
Hello,
Is there a simple test where I can specify a query and see the execution trace
under Eclipse Debug mode? Is there any test that interactively asks for a query?
Thanks,
shyam_sar...@yahoo.com
Hello,
I am trying to understand the call sequence of Java classes from the top level
(command processor). I can see Parser and Lexer generated by Antlr. Can someone
please help me on the call sequence ? Where is the front level command
processor that collects a query as a string and then
sem.analyze() to do semantic analysis, optimization and plan
generation. Finally it goes through the Task list and runs
the tasks according to the dependencies.
Ashish
-Original Message-
From: Shyam Sarkar [mailto:shyam_sar...@yahoo.com]
Sent: Wednesday, March 11, 2009 2:49 PM
All,
Please inspect and leave some comments on TIMESTAMP design doc (mainly
created from MySQL 6.0 spec). TIMESTAMP implementation can have impact on
other parts of Hive code. So please let me know which specific syntax can be
initially implemented.
Thanks,
shyam_sar...@yahoo.com
of that format will not conform to the
grammar at places where a string literal is expected. A
better approach is to treat the format as a stringliteral
and then do the format checks at the typecheck and semantic
analysis time.
Ashish
-Original Message-
From: Shyam Sarkar
Hi Zheng and others,
Could you please check Hive.g grammar changes for TIMESTAMP (See the comments
with // Change by Shyam)?
Please review and let me know your feedback. I shall write a short design doc
later for review after these short exchanges.
Thanks,
shyam_sar...@yahoo.com
2009, at 14:15, Shyam Sarkar wrote:
Hi Zheng and others,
Could you please check Hive.g grammar changes for
TIMESTAMP (See the comments with // Change by Shyam)?
Please review and let me know your feedback. I shall
write a short design doc later for review after these short
exchanges
Hello,
I inspected the grammar Hive.g and decided to create a new type for TIMESTAMP.
TIMESTAMP is not a primitive type or list type or map type. It is a timestamp
type of the form TIMESTAMP(MMDDHHMMSS) which is different from other types.
Please let me know if there is any other
:01 PM
We are using antlr.
Basically, the rule checks the timestamp of
HiveParser.java. If it's newer
than Hive.g, then we don't need to regenerate
HiveParse.java from Hive.g
again.
Zheng
On Tue, Feb 17, 2009 at 12:15 PM, Shyam Sarkar
shyam_sar...@yahoo.comwrote:
Hello,
Someone
Hello,
Someone please explain the following build.xml spec for grammar build
(required and not required) ::
===
uptodate property=grammarBuild.notRequired
srcfiles dir= ${src.dir}/org/apache/hadoop/hive/ql/parse
Is there any 'Server's time zone' implementation inside Hive? For proper
implementation of TIMESTAMP data type, this is necessay to translate from
stored string type. I am focusing on MySQL 6.0 (with limited properties) for
TIMESTAMP.
http://dev.mysql.com/doc/refman/6.0/en/timestamp.html
Hello,
Please help me to understand what I am going to implement for Timestamp. Do we
need LOCALTIMESTAMP implementation? See the comparisons below::
=
LOCALTIMESTAMP
It's often important to get the value of current date and
Following is the BNF for datetime type in SQL 2003::
datetime type::=
DATE
| TIME [ left paren time precision right paren ] [ with or
without time zone ]
| TIMESTAMP [ left paren timestamp precision right paren ] [
with or without time zone ]
Please let me know
Some examples with timestamp in SQL standard ::
==
Create Table
CREATE TABLE Stu_Table (
Stu_Id varchar(2),
Stu_Name varchar(10),
Stu_Dob timestamp NOT NULL );
Insert Date Into Stu_Table
Now insert into
construct.
Ashish
-Original Message-
From: Shyam Sarkar [mailto:shyam_sar...@yahoo.com]
Sent: Wednesday, February 11, 2009 2:37 PM
To: hive-dev@hadoop.apache.org
Subject: Need LOCALTIMESTAMP ?
Hello,
Please help me to understand what I am going to implement
for Timestamp. Do we
probably jump in, but the committers are a good start:
http://hadoop.apache.org/hive/credits.html
There's also an IRC channel where some of them pop in
now and again:
##hive at irc.freenode.net
I haven't worked with serde much so can't give any
pointers where to start.
/Johan
Shyam
Hello,
I am curious if certain object and type definition features of SQL 2003
standard can be implemented as part of HiveQL. It makes sense because hadoop
database was designed as a non-SQL parallel database where operations are
written in Java classes.
Syntax and semantics for types and
the eclipse stuff for 0.19.0. Is
it possible for you to use 0.17.0 for now, while we figure
this out...
Ashish
-Original Message-
From: Shyam Sarkar [mailto:shyam_sar...@yahoo.com]
Sent: Tuesday, February 03, 2009 11:26 AM
To: hive-dev@hadoop.apache.org
Subject: Eclipse run fails
Hello,
I am a new developer for hive and hadoop. I downloaded hive and hadoop 0.17.2.1
version to test inside eclipse but my test failed. I could not create directory
inside HDFS of 0.17.2.1 version but I could do so using 0.19.0 version. So I
wanted to try eclipse compile/test with 0.19.0 and
...@facebook.com wrote:
From: Ashish Thusoo athu...@facebook.com
Subject: RE: Eclipse run fails !!
To: Shyam Sarkar shyam_sar...@yahoo.com, hive-dev@hadoop.apache.org
hive-dev@hadoop.apache.org
Date: Tuesday, February 3, 2009, 1:46 PM
Hi Shyam,
I can certainly say that 0.17.0 should work
-0.19 since
the former works well with running unit tests.
From: Shyam Sarkar shyam_sar...@yahoo.com
Reply-To: hive-dev@hadoop.apache.org,
shyam_sar...@yahoo.com
Date: Sat, 31 Jan 2009 11:46:35 -0800
To: hive-dev@hadoop.apache.org
Subject: Need Help
hadoop-0.17.2.1 version instead of hadoop-0.19 since
the former works well with running unit tests.
From: Shyam Sarkar shyam_sar...@yahoo.com
Reply-To: hive-dev@hadoop.apache.org,
shyam_sar...@yahoo.com
Date: Sat, 31 Jan 2009 11:46:35 -0800
To: hive-dev
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