My solution is importing data to h2 normally, and the *mv.db file size
increased dramatically, and then jdbc/execute! a sql to create a empty
table with db url option ";DEFRAG_ALWAYS=TRUE", the size of db file dropped
dramatically. the reason to do this is if jdbc/insert-multi! with
I had met a same problem, and could not resolve it.
I just import data into H2 (embeded mode) through jdbc in first time, and
following I will only execute jdbc query, but the *.mv.db file size auto
increased dramatically, from about 600M to 1.8G, if query without "union
all", the db file
