private int Load_from_db(List_adp list, int uid_prv) {
// prepare for page_tbl
String sql =
String_.Format(
String_.Concat_lines_nl_skip_last // ANSI.Y
(
"SELECT mp.xomp_uid",
", pp.page_id",
", pp.page_namespace",
", pp.page_title",
", pp.page_text_db_id",
"FROM xomp_page mp",
" JOIN <page_db>page pp ON mp.page_id = pp.page_id",
"WHERE mp.xomp_uid > {0}",
"AND mp.page_status = 0",
"LIMIT {1}"),
uid_prv,
num_pages_per_load);
this.attach_mgr.Conn_links_(
new Db_attach_itm("page_db", wiki.Data__core_mgr().Db__core().Conn()));
sql = attach_mgr.Resolve_sql(sql);
// run page_tbl
int rv = -1;
Xomp_text_db_loader text_db_loader = new Xomp_text_db_loader(wiki);
attach_mgr.Attach();
Db_rdr rdr = make_conn.Stmt_sql(sql).Exec_select__rls_auto();
try {
while (rdr.Move_next()) {
rv = rdr.Read_int("xomp_uid");
int text_db_id = rdr.Read_int("page_text_db_id");
Xomp_page_itm ppg = new Xomp_page_itm(rdr.Read_int("page_id"));
ppg.Init_by_page(
rdr.Read_int("page_namespace"), rdr.Read_bry_by_str("page_title"), text_db_id);
list.Add(ppg);
text_db_loader.Add(text_db_id, ppg);
}
} finally {
rdr.Rls();
}
attach_mgr.Detach();
text_db_loader.Load();
return rv;
}
public void Split__trg__nth__rls(Split_ctx ctx, Db_conn trg_conn) {
// make rndm_rng and add
Rndm_rng_itm rng_itm = bldr.Exec_rng_end_or_null();
if (rng_itm == null) return;
Rndm_rng_tbl rng_tbl = new Rndm_rng_tbl(trg_conn);
rng_tbl.Create_tbl();
Db_stmt rng_stmt = rng_tbl.Insert_stmt();
rng_tbl.Insert(
rng_stmt, rng_itm.Mgr_idx(), rng_itm.Rng_idx(), rng_itm.Seq_bgn(), rng_itm.Seq_end());
rng_stmt.Rls();
bldr.Conn().Txn_end();
// make rndm_seq and bulk copy
Rndm_seq_tbl seq_tbl = new Rndm_seq_tbl(trg_conn);
seq_tbl.Create_tbl();
Split_tbl_.Bld_insert_by_select(tmp_bfr, seq_tbl.Tbl_name(), seq_tbl.Flds());
tmp_bfr.Add_str_u8_fmt(
"WHERE {0} = {1} AND {2} = {3}",
seq_tbl.Fld__qry_idx(), bldr.Qry_idx(), seq_tbl.Fld__rng_idx(), bldr.Rng_idx());
attach_mgr.Conn_main_(trg_conn).Conn_links_(new Db_attach_itm("src_db", bldr.Conn()));
attach_mgr.Exec_sql(tmp_bfr.To_str_and_clear());
// bldr.Conn().Txn_bgn("rndm");
}