在hbase shell里面查询：过滤字段 && 过滤值
- 列值比较器 + 比较符号: SingleColumnValueFilter + CompareFilter.CompareOp
- http://hbase.apache.org/1.4/apidocs/org/apache/hadoop/hbase/filter/CompareFilter.CompareOp.html
- CompareOp 可选取值:EQUAL,NOT_EQUAL, GREATER,GREATER_OR_EQUAL, LESS,LESS_OR_EQUAL
####0， 声明要导入的java类
hbase(main):026:0> import org.apache.hadoop.hbase.filter.CompareFilter
import org.apache.hadoop.hbase.filter.SingleColumnValueFilter
import org.apache.hadoop.hbase.filter.SubstringComparator
import org.apache.hadoop.hbase.util.Bytes
####1， 比较数值字段： >某个数 的数据打印
hbase(main):026:0> scan 't'
ROW COLUMN+CELL
1 column=f:age, timestamp=1587466381584, value=25
1 column=f:name, timestamp=1587466381584, value=a
1 column=f:pm, timestamp=1587466381584, value=123
2 column=f:name, timestamp=1587466381584, value=
2 column=f:pm, timestamp=1587466381584, value=456
3 column=f:name, timestamp=1587466381584, value=c
3 row(s) in 0.0300 seconds
hbase(main):060:0> scan 't', { COLUMNS => ['f:pm'], FILTER =>SingleColumnValueFilter.new(Bytes.toBytes('f'),Bytes.toBytes('pm'),CompareFilter::CompareOp.valueOf('GREATER'),Bytes.toBytes("123")) }
ROW COLUMN+CELL
2 column=f:pm, timestamp=1587466381584, value=456
1 row(s) in 0.0210 seconds
####2， 比较时间字段： >某个时间 的数据打印
hbase(main):059:0> scan 'BASIC_INFORMATION',{COLUMNS=>['f:Visit_Date'], LIMIT=> 3}
ROW COLUMN+CELL
row1 column=f:Visit_Date, timestamp=1567637460098, value=2010-12-04 00:00:00.0
row2 column=f:Visit_Date, timestamp=1567593570811, value=2005-07-04 00:00:00.0
row3 column=f:Visit_Date, timestamp=1567607471125, value=2009-09-21 00:00:00.0
3 row(s) in 0.0100 seconds
hbase(main):039:0> scan 'BASIC_INFORMATION', \
{ COLUMNS=>['f:Visit_Date'], LIMIT=> 3, \
FILTER =>SingleColumnValueFilter.new(Bytes.toBytes('f'),Bytes.toBytes('Visit_Date'), CompareFilter::CompareOp.valueOf('GREATER'),Bytes.toBytes("2005-07-04 00:00:00.0")) }
ROW COLUMN+CELL
r1 column=f:Visit_Date, timestamp=1567637460098, value=2010-12-04 00:00:00.0
r3 column=f:Visit_Date, timestamp=1567607471125, value=2009-09-21 00:00:00.0
r4 column=f:Visit_Date, timestamp=1567599833678, value=2007-12-20 00:00:00.0
3 row(s) in 0.0130 seconds
