Hi,
It's me again :-)
After fighting with indexes and insert statements, I've got a little
problem,
here it is:
I've got about 1,000,000 lines in a CSV file that I load into a table in
memory
(it takes around 900Mb of memory using the HSQLDB's pool of String).
After that, I convert my data from external codes (String) into internal
codes
(int / Integer). The amount of memory used grows up to 1,2Gb! I then
execute
a delete on the table that contains the external codes hoping to get 900Mb
back
but It doesn't work :-(
Well I don't know how the HSQLDB's pool of String works but I would like to
know
if it is possible:
- to use it directly from other Java class
- to smartly clear it (in my example, only the String used in the external
table...)
- to know how it works :-)
TIA,
Loïc
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