New driver fails on insert with multiple values

[reimai]

Hi, I've been updating my project to the latest jdbc driver and found that it crashes with an npe on an insert with multiple values. The old one works fine. Could you please look into this? Here is a test for both drivers.

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[github-actions]

Benchmark                                (client)  (connection)  (statement)  (type)   Mode  Cnt    Score    Error  Units
Basic.insertOneRandomNumber  clickhouse-http-jdbc         reuse       normal  object  thrpt   20  227.208 ± 34.640  ops/s
Basic.insertOneRandomNumber  clickhouse-http-jdbc         reuse     prepared  object  thrpt   20  201.227 ± 14.298  ops/s
Basic.insertOneRandomNumber  clickhouse-http-jdbc           new       normal  object  thrpt   20  238.782 ± 25.958  ops/s
Basic.insertOneRandomNumber  clickhouse-http-jdbc           new     prepared  object  thrpt   20  197.191 ± 21.443  ops/s
Basic.insertOneRandomNumber  clickhouse-grpc-jdbc         reuse       normal  object  thrpt   20  254.069 ± 28.611  ops/s
Basic.insertOneRandomNumber  clickhouse-grpc-jdbc         reuse     prepared  object  thrpt   20  204.790 ± 12.288  ops/s
Basic.insertOneRandomNumber  clickhouse-grpc-jdbc           new       normal  object  thrpt   20  255.320 ± 30.872  ops/s
Basic.insertOneRandomNumber  clickhouse-grpc-jdbc           new     prepared  object  thrpt   20  202.881 ± 14.923  ops/s
Basic.selectOneRandomNumber  clickhouse-http-jdbc         reuse       normal  object  thrpt   20  696.405 ± 51.195  ops/s
Basic.selectOneRandomNumber  clickhouse-http-jdbc         reuse     prepared  object  thrpt   20  697.389 ± 54.225  ops/s
Basic.selectOneRandomNumber  clickhouse-http-jdbc           new       normal  object  thrpt   20  692.220 ± 68.573  ops/s
Basic.selectOneRandomNumber  clickhouse-http-jdbc           new     prepared  object  thrpt   20  709.513 ± 62.753  ops/s
Basic.selectOneRandomNumber  clickhouse-grpc-jdbc         reuse       normal  object  thrpt   20  670.927 ± 33.134  ops/s
Basic.selectOneRandomNumber  clickhouse-grpc-jdbc         reuse     prepared  object  thrpt   20  662.234 ± 36.836  ops/s
Basic.selectOneRandomNumber  clickhouse-grpc-jdbc           new       normal  object  thrpt   20  633.806 ± 48.791  ops/s
Basic.selectOneRandomNumber  clickhouse-grpc-jdbc           new     prepared  object  thrpt   20  640.190 ± 51.241  ops/s

[zhicwu]

Thank you @reimai. This was reported in #920 and it's been fixed in #940.