leaves12138 opened a new pull request, #1624:
URL: https://github.com/apache/incubator-paimon/pull/1624
This class are copied from iceberg:
paimon-core/src/main/java/org/apache/paimon/utils/ByteBuffers.java
paimon-core/src/main/java/org/apache/paimon/utils/ZOrderByteUtils.java
paimon-core/src/test/java/org/apache/paimon/utils/TestZOrderByteUtil.java
This bytes(every column devoted to z-index) is fixed to 8 bytes, so if the
column is short or byte etc, it will fill the upper byte with zero. If the
column is string or something like byte[] more then 8, it will truncate it to 8
byte.
The action will invoke like this:
Table(sql select) ----------------> DataStream[Row] ------------------->
DataStream[Row] -----------------> Table(with z-order) ----------------->
Table(sorted) -----[overwrite target]-----> Table(overwrited)
usage example:
<flink run paimon jar>
zorder-rewrite
--warehouse
/Users/yejunhao/paimontest/GlobalBatchReadWrite
--database
my_db
--table
Orders1
--sql-select
"SELECT * FROM my_db.Orders1 WHERE f0 = 0"
--zorder-by
f0,f1,f2,f3,f4,f7,f8,f9,f10,f11,f12,f13,f14,f15
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