Huaxin Gao created SPARK-15749:
----------------------------------
Summary: Make the error message more meaningful
Key: SPARK-15749
URL: https://issues.apache.org/jira/browse/SPARK-15749
Project: Spark
Issue Type: Improvement
Components: SQL
Reporter: Huaxin Gao
Priority: Trivial
For table test1 (C1 varchar (10), C2 varchar (10)), when I insert a row using
```
sqlContext.sql("insert into test1 values ('abc', 'def', 1)")
```
I got error message
```
Exception in thread "main" java.lang.RuntimeException: Relation[C1#0,C2#1]
JDBCRelation(test1)
requires that the query in the SELECT clause of the INSERT INTO/OVERWRITE
statement generates the same number of columns as its schema.
```
The error message is a little confusing. In my simple insert statement, it
doesn't have a SELECT clause.
I will change the error message to a more general one
```
Exception in thread "main" java.lang.RuntimeException: Relation[C1#0,C2#1]
JDBCRelation(test1)
requires that the data to be inserted have the same number of columns as the
target table.
```
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