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[SQOOP-3002] sqoop merge tool composite merge-key #26
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| StringBuilder keyFieldsSb = new StringBuilder(); | ||
| for (String str : keyColName.split(",")) { | ||
| keyFieldsSb.append("+").append(fieldMap.get(str).toString()); | ||
| keyFieldsSb.append(connectStr).append(fieldMap.get(str).toString()); |
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for example one table has two column, a and b
| Field a | Field b |
|---|---|
| a+ | b |
| a | +b |
when use "+" to connect two field, two record will has same keyObj.
To avoid this i use a String contains one byte.
|
Hi @kevin00chen , |
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JIRA Issue:https://issues.apache.org/jira/browse/SQOOP-3002
Sqoop Merge Tool can only specify one column by using --merge-key argument.
When i need to specify two or more column, Sqoop-1.4.6 will throw an Exception.