This table holds information on what spells newly created characters should start with if the PlayerStart.AllSpells setting is enabled in worldserver.conf. A character in this table is defined by his/her race and class combination.
Please note you'll have to set PlayerStart.CustomSpells to 1 in config, if not, this table will not have any effect.
One or more character's race. See ChrRaces.dbc.
One or more character's class. See ChrClasses.dbc
Spell id. See Spell.dbc
Basically a comment of what your query does.