hive/db/db_state.py

@@ -99,7 +99,7 @@ class DbState:
 
             'hive_posts_parent_id_idx',
             'hive_posts_depth_idx',
-            'hive_posts_created_at_author_id_idx',
+            'hive_posts_author_id_created_at_idx',
             'hive_posts_root_id_id_idx',
 
             'hive_posts_community_id_idx',

hive/db/schema.py

@@ -144,7 +144,7 @@ def build_metadata():
         sa.Index('hive_posts_promoted_idx', 'promoted'),
         sa.Index('hive_posts_sc_trend_id_is_paidout_idx', 'sc_trend', 'id', 'is_paidout'),
         sa.Index('hive_posts_sc_hot_id_is_paidout_idx', 'sc_hot', 'id', 'is_paidout'),
-        sa.Index('hive_posts_created_at_author_id_idx', 'created_at', 'author_id'),
+        sa.Index('hive_posts_author_id_created_at_idx', sa.text('author_id DESC, created_at DESC')),
         sa.Index('hive_posts_block_num_idx', 'block_num'),
         sa.Index('hive_posts_block_num_created_idx', 'block_num_created'),
         sa.Index('hive_posts_cashout_time_id_idx', 'cashout_time', 'id'),

hive/db/sql_scripts/upgrade/upgrade_runtime_migration.sql

@@ -146,6 +146,7 @@ values
 ,(now(), '9e126e9d762755f2b9a0fd68f076c9af6bb73b76') -- https://gitlab.syncad.com/hive/hivemind/-/merge_requests/314 mentions fix
 ,(now(), '033619277eccea70118a5b8dc0c73b913da0025f') -- https://gitlab.syncad.com/hive/hivemind/-/merge_requests/326 https://gitlab.syncad.com/hive/hivemind/-/merge_requests/322 posts rshares recalc
 ,(now(), '1847c75702384c7e34c624fc91f24d2ef20df91d') -- latest version of develop containing included changes.
+,(now(), '1f23e1326f3010bc84353aba82d4aa7ff2f999e4') -- hive_posts_author_id_created_at_idx index def. to speedup hive_accounts_info_view.
 ) ds (patch_date, patch_revision)
 where not exists (select null from hive_db_patch_level hpl where hpl.patched_to_revision = ds.patch_revision);
 

hive/db/sql_scripts/upgrade/upgrade_table_schema.sql

@@ -286,3 +286,10 @@ IF EXISTS (SELECT * FROM pg_constraint WHERE conname='hive_votes_ux1') THEN
 END IF;
 END
 $$
+;
+
+--- Change definition of index hive_posts_created_at_author_id_idx to hive_posts_author_id_created_at_idx to improve hive_accounts_info_view performance.
+DROP INDEX IF EXISTS public.hive_posts_created_at_author_id_idx;
+
+CREATE INDEX IF NOT EXISTS hive_posts_author_id_created_at_idx ON public.hive_posts ( author_id DESC, created_at DESC);
+