UnableToExecuteStatementException: Batch entry was aborted. Call getNextException to see the cause

Question

Using @SqlBatch to batch update the DB

@SqlBatch(\"\")
@BatchChunkSize(INSERT_BATCH_SIZE)
void insert(@BindBean Iterator<         


        

Answer 1

I have just seen a thing like that with Hibernate and Postgres. As I understand, the problem is in the PostgreSQL driver (org.postgresql.core.v3.QueryExecutorImpl).

What I saw was:

java.sql.BatchUpdateException: Batch entry 0 INSERT INTO myscheme.table_name (list,of,column,names,...) VALUES (9007199314139196, 'F', 27, 625, 625, 625, 625, 625, 28), (9007199314139198, 'T', 2395, 2369, 2369, 2369, 2369, 2369, 2389), ... was aborted.  Call getNextException to see the cause.

Uninformative.

I caught and printed the exception,

    } catch(JDBCConnectionException t) {
        System.out.println("================ {{{");
        SQLException current = t.getSQLException();
        do {
           current.printStackTrace();
        } while ((current = current.getNextException()) != null);
        System.out.println("================ }}}");
        throw t;
    }

and got:

Caused by: java.io.IOException: Tried to send an out-of-range integer as a 2-byte value: 33300

Still confusing. 33300 is a very strange number. What is important is that it is a multiple of the number of columns.

The exception happens

at org.postgresql.core.v3.QueryExecutorImpl.sendParse(QueryExecutorImpl.java:1329)

which is

pgStream.SendInteger2(params.getParameterCount()); // # of parameter types specified

What does that mean?

The total number of values, that is, the number of columns multiplied by the number of rows must not exceed 32767 for a single INSERT statement.

You can divide 32767 by the number of columns to get the maximal number of rows per one SQL INSERT statement.