fix: schema and sql query

schema.graphql

@@ -83,5 +83,5 @@ type ActionOutput {
 type Query {
   events(input: EventFilterOptionsInput!): [EventOutput]!
   actions(input: ActionFilterOptionsInput!): [ActionOutput]!
-  maxBlockHeightInfo: MaxBlockHeightInfo!
+  block: MaxBlockHeightInfo!
 }

src/db/sql/events-actions/queries.ts

@@ -373,19 +373,19 @@ export function getActionsQuery(
 
 export function getBlockQuery(db_client: postgres.Sql) {
   return db_client`
-  WITH max_height AS (
-    SELECT MAX(height) AS max_height
+WITH max_heights AS (
+    SELECT 
+        chain_status,
+        MAX(height) AS max_height
     FROM blocks
-  )
-  SELECT *
-  FROM blocks
-  WHERE height = (SELECT max_height FROM max_height)
-  AND chain_status = 'canonical'
-  UNION
-  SELECT *
-  FROM blocks
-  WHERE height = (SELECT max_height FROM max_height)
-  AND chain_status = 'pending'
+    WHERE chain_status IN ('canonical', 'pending')
+    GROUP BY chain_status
+)
+SELECT b.*
+FROM blocks b
+JOIN max_heights mh
+  ON b.chain_status = mh.chain_status
+  AND b.height = mh.max_height;
   `;
 }
 

src/services/blocks-service/block-service.ts

@@ -34,10 +34,10 @@ class BlockService implements IBlockService {
     const processingSpan = tracingState.startSpan('block.processing');
     const blockData = {
       canonicalMaxBlockHeight: Number(
-        rows.filter((row) => row.chain_status === 'canonical')[0]
+        rows.filter((row) => row.chain_status === 'canonical')[0].height
       ),
       pendingMaxBlockHeight: Number(
-        rows.filter((row) => row.chain_status === 'pending')[0]
+        rows.filter((row) => row.chain_status === 'pending')[0].height
       ),
     };
     processingSpan.end();