i18n.install does not make all necessary changes in PostgreSQL

When I installed i18n it didn't create a "trid" column in my term_data table, so I had a look at the i18n.install script and noticed two issues with the "pgsql" case.

First, in this block:

db_query("ALTER TABLE {term_data} ADD language varchar(12)");
db_query("UPDATE {term_data} SET language=''");
db_query("ALTER TABLE {term_data} ALTER COLUMN language SET NOT NULL");
db_query("ALTER TABLE {term_data} ALTER COLUMN language SET DEFAULT ''");

It looks like the following lines need to be added:

db_query("ALTER TABLE {term_data} ADD trid integer");
db_query("UPDATE {term_data} SET trid='0'");
db_query("ALTER TABLE {term_data} ALTER COLUMN trid SET NOT NULL");
db_query("ALTER TABLE {term_data} ALTER COLUMN trid SET DEFAULT '0'");

Then in this section...

db_query("ALTER TABLE {vocabulary} ADD language varchar(12)");
db_query("UPDATE {vocabulary} SET language=''");

The following lines are duplicates of lines that exist in the {term_data} section, so I assume that they were cut and pasted from there, and that {term_data} should have been replaced with {vocabulary}:

db_query("ALTER TABLE {term_data} ALTER COLUMN language SET NOT NULL");
db_query("ALTER TABLE {term_data} ALTER COLUMN language SET DEFAULT ''");

I am attaching a cumulative patch for review.