将一张表复制到Cassandra中的另一张表 [英] copy one table to another in cassandra
问题描述
我想将数据从standardevents复制到standardeventstemp。
下面的步骤我正在做
i want to copy data from standardevents to standardeventstemp.. below steps i am doing
COPY events.standardevents (uuid, data, name, time, tracker, type, userid) TO 'temp.csv';
truncate standardevents;
COPY event.standardeventstemp (uuid, data, name, time, tracker, type, userid) FROM 'temp.csv';
但我在第三步后出现错误
but i am getting below error after 3rd step
错误请求:
类型为uuid的 名称的STRING常量(3a1ccec0-ef77-11e3-9e56-22000ae3163a)无效
Bad Request: Invalid STRING constant (3a1ccec0-ef77-11e3-9e56-22000ae3163a) for name of type uuid
在列#0处中止导入,之前插入的值仍然存在。
任何人都可以解释此错误的原因,此
can anybody explain the cause of this error and how can i resolve this
uuid的数据类型为uuid,其余数据类型为varchar
datatype of uuid is uuid the rest of the datatypes are varchar
CREATE TABLE standardevents (
uuid uuid PRIMARY KEY,
data text,
name text,
time text,
tracker text,
type text,
userid text
) WITH
bloom_filter_fp_chance=0.010000 AND
caching='KEYS_ONLY' AND
comment='' AND
dclocal_read_repair_chance=0.000000 AND
gc_grace_seconds=864000 AND
read_repair_chance=0.100000 AND
replicate_on_write='true' AND
populate_io_cache_on_flush='false' AND
compaction={'class': 'SizeTieredCompactionStrategy'} AND
compression={'sstable_compression': 'SnappyCompressor'};
推荐答案
原来,这是一个 Cassandra 1.2.2中的已知错误。
相同的命令在2.0.x中工作正常,因此升级将解决问题。
The same commands work fine in 2.0.x, so an upgrade will fix the problem.
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