如何检查配置单元中是否存在任何特定分区：我的配置单元表中有如下分区：国家=印度/州=mh国家=美国/州=纽约我想检查country=“something”和state=“something”是否存在于配置单元中或使用shell脚本。请帮助
ubof19bj1#
描述mytable分区（…）显示像mytable分区一样扩展的表（…）使用从shell执行 hive -e '...' ####演示
hive -e '...'
create table mytable (i int) partitioned by (year int,month tinyint,day tinyint);insert into mytable partition(year,month,day) values (1,2017,3,29);hive> desc mytable partition (year=2017,month=3,day=29);OKi int year int month tinyint day tinyint # Partition Information# col_name data_type commentyear int month tinyint day tinyint hive> desc mytable partition (year=2017,month=4,day=1);FAILED: SemanticException [Error 10006]: Partition not found {year=2017, month=4, day=1}hive> show table extended like mytable partition (year=2017,month=3,day=29);OKtableName:mytableowner:clouderalocation:hdfs://quickstart.cloudera:8020/user/hive/warehouse/mytable/year=2017/month=3/day=29inputformat:org.apache.hadoop.mapred.TextInputFormatoutputformat:org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormatcolumns:struct columns { i32 i}partitioned:truepartitionColumns:struct partition_columns { i32 year, byte month, byte day}totalNumberFiles:1totalFileSize:2maxFileSize:2minFileSize:2lastAccessTime:1490770378864lastUpdateTime:1490770379748hive> show table extended like mytable partition (year=2017,month=4,day=1);FAILED: SemanticException [Error 10006]: Partition not found {year=2017, month=4, day=1}
create table mytable (i int)
partitioned by (year int,month tinyint,day tinyint)
;
insert into mytable partition(year,month,day) values (1,2017,3,29)
hive> desc mytable partition (year=2017,month=3,day=29);
OK
i int
year int
month tinyint
day tinyint
# Partition Information
# col_name data_type comment
hive> desc mytable partition (year=2017,month=4,day=1);
FAILED: SemanticException [Error 10006]: Partition not found {year=2017, month=4, day=1}
hive> show table extended like mytable partition (year=2017,month=3,day=29);
tableName:mytable
owner:cloudera
location:hdfs://quickstart.cloudera:8020/user/hive/warehouse/mytable/year=2017/month=3/day=29
inputformat:org.apache.hadoop.mapred.TextInputFormat
outputformat:org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
columns:struct columns { i32 i}
partitioned:true
partitionColumns:struct partition_columns { i32 year, byte month, byte day}
totalNumberFiles:1
totalFileSize:2
maxFileSize:2
minFileSize:2
lastAccessTime:1490770378864
lastUpdateTime:1490770379748
hive> show table extended like mytable partition (year=2017,month=4,day=1);
yb3bgrhw2#
res=`hive -e "use {db}; show partitions {table} partition(country='india',state='MH')"`if [ ! -z "$res" ]; then do sth if the partition existsfi
res=`hive -e "use {db}; show partitions {table} partition(country='india',state='MH')"`
if [ ! -z "$res" ]; then
do sth if the partition exists
fi
您可以为其他分区进行复制。
lc8prwob3#
hive -e "use <db>; show partitions <table>;" egrep --color '<countryName>|<stateName>'
前任： hive -e "use db; show partitions table;" egrep --color 'India|MH' 这将为您提供所有匹配分区，其结果与india或mh或两者都匹配
hive -e "use db; show partitions table;" egrep --color 'India|MH'
3条答案
按热度按时间ubof19bj1#
描述mytable分区（…）
显示像mytable分区一样扩展的表（…）
使用从shell执行
hive -e '...'####演示yb3bgrhw2#
您可以为其他分区进行复制。
lc8prwob3#
前任：
hive -e "use db; show partitions table;" egrep --color 'India|MH'这将为您提供所有匹配分区，其结果与india或mh或两者都匹配