add index for release_time

lbry/db/queries/search.py

@@ -94,8 +94,11 @@ def select_claims(cols: List = None, for_count=False, **constraints) -> Select:
                 raise NameError(f'{column} is not a valid order_by field')
             if column == 'name':
                 column = 'claim_name'
+            nulls_last = ''
+            if column == 'release_time':
+                nulls_last = ' NULLs LAST'
             sql_order_by.append(
-                f"claim.{column} ASC NULLs LAST" if is_asc else f"claim.{column} DESC NULLs LAST"
+                f"claim.{column} ASC{nulls_last}" if is_asc else f"claim.{column} DESC{nulls_last}"
             )
         constraints['order_by'] = sql_order_by
 

lbry/db/tables.py

@@ -155,7 +155,6 @@ Claim = Table(
     Column('activation_height', Integer),
     Column('expiration_height', Integer),
     Column('takeover_height', Integer, nullable=True),
-    Column('sync_height', Integer),  # claim dynamic values up-to-date as of this height (eg. staked_amount)
     Column('is_controlling', Boolean),
 
     # short_url: normalized#shortest-unique-claim_id
@@ -211,6 +210,8 @@ pg_add_claim_and_tag_constraints_and_indexes = [
     "CREATE UNIQUE INDEX claim_txo_hash ON claim (txo_hash);",
     # used by takeover process to reset winning claims
     "CREATE INDEX claim_normalized ON claim (normalized);",
+    # ordering and search by release_time
+    "CREATE INDEX claim_release_time ON claim (release_time DESC NULLs LAST);",
     # used to count()/sum() claims signed by channel
     "CREATE INDEX signed_content ON claim (channel_hash) "
     "INCLUDE (amount) WHERE is_signature_valid;",
@@ -247,3 +248,15 @@ pg_add_support_constraints_and_indexes = [
     "CREATE INDEX signed_support ON support (channel_hash) "
     "INCLUDE (amount) WHERE is_signature_valid;",
 ]
+
+
+Stake = Table(
+    'stake', metadata,
+    Column('claim_hash', LargeBinary),
+    Column('height', Integer),
+    Column('stake_min', BigInteger),
+    Column('stake_max', BigInteger),
+    Column('stake_sum', BigInteger),
+    Column('stake_count', Integer),
+    Column('stake_unique', Integer),
+)

setup.py

@@ -37,7 +37,7 @@ setup(
         ],
     },
     install_requires=[
-        'aiohttp==3.5.4',
+        'aiohttp==3.6.2',
         'aioupnp==0.0.17',
         'certifi>=2018.11.29',
         'colorama==0.3.7',