#!/bin/bash
# DR #5254 - This script drops dataURI column from cwa table and adds a new
#            multi-column unique constraint

PSQL="/awips2/psql/bin/psql"
DBUSER=awips

echo "INFO: Altering table cwa"

${PSQL} -U ${DBUSER} -d metadata << EOF
begin transaction;
delete from cwa where eventid is null;
alter table cwa
    drop constraint if exists uk_cwa_datauri_fields,
    drop column if exists datauri,
    alter eventid set not null,
    add constraint uk_cwa_datauri_fields unique (reftime, forecasttime, eventid);
drop index if exists cwa_refTimeIndex;
commit transaction;
EOF