WIP improve legislation RAG system

Author: sprice

lib/db/legislation/schema.ts

@@ -630,7 +630,7 @@ export const crossReferences = legislationSchema.table(
     sourceSectionLabel: varchar("source_section_label", { length: 50 }),
     // Target (what is being referenced) - raw from XML
     targetType: varchar("target_type", { length: 20 }).notNull(), // "act" or "regulation"
-    targetRef: varchar("target_ref", { length: 100 }).notNull(), // Raw link text (e.g., "A-2", "SOR-86-946")
+    targetRef: varchar("target_ref", { length: 100 }).notNull(), // Raw link (e.g., "C-46", "SOR-2000-1")
     targetSectionRef: varchar("target_section_ref", { length: 50 }),
     // Display text for the reference
     referenceText: text("reference_text"),
@@ -642,6 +642,7 @@ export const crossReferences = legislationSchema.table(
     index("cross_references_source_regulation_id_idx").on(
       table.sourceRegulationId
     ),
+    index("cross_references_target_type_idx").on(table.targetType),
     index("cross_references_target_ref_idx").on(table.targetRef),
   ]
 );

lib/db/migrations/0019_boring_drax.sql

@@ -0,0 +1,3 @@
+ALTER TABLE "rag"."leg_resources" DROP CONSTRAINT "leg_resources_source_type_check";--> statement-breakpoint
+CREATE INDEX "cross_references_target_type_idx" ON "legislation"."cross_references" USING btree ("target_type");--> statement-breakpoint
+ALTER TABLE "rag"."leg_resources" ADD CONSTRAINT "leg_resources_source_type_check" CHECK ("rag"."leg_resources"."source_type" IN ('act', 'act_section', 'regulation', 'regulation_section', 'defined_term', 'preamble', 'treaty', 'cross_reference', 'table_of_provisions', 'signature_block', 'related_provisions', 'footnote', 'schedule', 'marginal_note'));