Fixed bug in mentions update ignoring posts having creation time earlier than...

Fixed bug in mentions update ignoring posts having creation time earlier than block they have processed by blockchain

hive/db/sql_scripts/update_hive_posts_mentions.sql

@@ -6,15 +6,11 @@ LANGUAGE 'plpgsql'
 AS
 $function$
 DECLARE
-  FIRST_BLOCK_TIME TIMESTAMP;
-  LAST_BLOCK_TIME TIMESTAMP;
+  __block_limit INT := 1200*24*90; --- 1200 blocks is equal to 1hr, so 90 days
 BEGIN
 
-  FIRST_BLOCK_TIME = ( SELECT created_at FROM hive_blocks WHERE num = _first_block );
-  LAST_BLOCK_TIME = ( SELECT created_at FROM hive_blocks WHERE num = _last_block );
-
-  IF (LAST_BLOCK_TIME - '90 days'::interval) > FIRST_BLOCK_TIME THEN
-    FIRST_BLOCK_TIME = LAST_BLOCK_TIME - '90 days'::interval;
+  IF (_last_block - __block_limit) > _first_block THEN
+    _first_block = _last_block - __block_limit;
   END IF;
 
   INSERT INTO hive_mentions( post_id, account_id, block_num )
@@ -23,17 +19,14 @@ BEGIN
       hive_accounts ha
     INNER JOIN
     (
-      SELECT T.id_post, LOWER( ( SELECT trim( T.mention::text, '{""}') ) ) mention, T.author_id, T.block_num
+      SELECT T.id_post, LOWER( ( SELECT trim( T.mention::text, '{""}') ) ) AS mention, T.author_id, T.block_num
       FROM
       (
         SELECT
-          hp.id, REGEXP_MATCHES( hpd.body, '(?:^|[^a-zA-Z0-9_!#$%&*@\\/])(?:@)([a-zA-Z0-9\\.-]{1,16}[a-zA-Z0-9])(?![a-z])', 'g') mention, hp.author_id, hp.block_num
+          hp.id, REGEXP_MATCHES( hpd.body, '(?:^|[^a-zA-Z0-9_!#$%&*@\\/])(?:@)([a-zA-Z0-9\\.-]{1,16}[a-zA-Z0-9])(?![a-z])', 'g') AS mention, hp.author_id, hp.block_num
         FROM hive_posts hp
-          INNER JOIN hive_post_data hpd ON hp.id = hpd.id
-        WHERE
-        (
-          hp.created_at >= FIRST_BLOCK_TIME
-        )
+        INNER JOIN hive_post_data hpd ON hp.id = hpd.id
+        WHERE hp.block_num >= _first_block
       )T( id_post, mention, author_id, block_num )
     )T( id_post, mention, author_id, block_num ) ON ha.name = T.mention
     WHERE ha.id != T.author_id