allocationSize=50, batch_size=1, 30 rows -> prepareStatementCount=32
allocationSize=50, batch_size=10, 30 rows -> prepareStatementCount=2
allocationSize=50, batch_size=25, 30 rows -> prepareStatementCount=2
allocationSize=50, batch_size=50, 30 rows -> prepareStatementCount=2
allocationSize=50, batch_size=25, 30 rows -> prepareStatementCount=3
allocationSize=25, batch_size=25, 30 rows -> prepareStatementCount=4
allocationSize=10, batch_size=25, 30 rows -> prepareStatementCount=5
allocationSize=1, batch_size=25, 30 rows -> prepareStatementCount=31