Actually, while Cyberzombie's tone could have been more polite, she's right. Awl pikes--and, for that matter, the vast majority of long pole arms--were traditionally used as defenses against charging horsemen. It's exceptionally difficult to wield a weapon that size offensively; you set it against foes on horses, or on higher ground, and you group them in walls so the enemy cannot approach without being impaled. That's also why they were so long: They had to reach the horsemen (or the horses) before the horsemen's own weapons reached the wielder.
I'm not saying they were never used offensively, but it was not their primary purpose.