CREATE TABLE claims_processing_stages (claim_status_name VARCHAR, claim_stage_id VARCHAR)
CREATE TABLE claims_processing (claim_stage_id VARCHAR)

What is the name of the claim processing stage that most of the claims are on?
SELECT t2.claim_status_name FROM claims_processing AS t1 JOIN claims_processing_stages AS t2 ON t1.claim_stage_id = t2.claim_stage_id GROUP BY t1.claim_stage_id ORDER BY COUNT(*) DESC LIMIT 1
SELECT "t2"."claim_status_name" FROM "claims_processing" AS "t1" JOIN "claims_processing_stages" AS "t2" ON "t1"."claim_stage_id" = "t2"."claim_stage_id" GROUP BY "t1"."claim_stage_id" ORDER BY COUNT(*) DESC NULLS LAST LIMIT 1