performance, index tuning etc

server/AyaNova/util/AySchema.cs

@@ -468,6 +468,8 @@ $BODY$ LANGUAGE PLPGSQL STABLE");
                 //create translation TEXT tables
                 await ExecQueryAsync("CREATE TABLE atranslation (id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY, name TEXT NOT NULL UNIQUE, baselanguage TEXT NOT NULL, stock BOOL, cjkindex BOOL default false)");
                 await ExecQueryAsync("CREATE TABLE atranslationitem (id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY, translationid BIGINT NOT NULL REFERENCES atranslation (id), key TEXT NOT NULL, display TEXT NOT NULL)");
+                //a lot of queries for subsets of translations
+                await ExecQueryAsync("CREATE INDEX idx_atranslationitem_key ON atranslationitem (key)");
 
 
                 //Load the default TRANSLATIONS
@@ -758,7 +760,6 @@ $BODY$ LANGUAGE PLPGSQL STABLE");
 
                 //indexes to speed up creation (validation)
                 await ExecQueryAsync("CREATE INDEX idx_aunit_serial ON aunit(serial)");
-                await ExecQueryAsync("CREATE INDEX idx_aunit_modelid ON aunit (unitmodelid ASC NULLS LAST)");
 
 
                 //LOANUNIT