Token indexes

alembic/versions/86afa7b6415d_token_indexes.py

@@ -0,0 +1,28 @@
+"""token indexes
+
+Revision ID: 86afa7b6415d
+Revises: 516b55c83144
+Create Date: 2024-10-05 15:19:05.023706
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision: str = '86afa7b6415d'
+down_revision: Union[str, None] = '516b55c83144'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_index(op.f('ix_token_name'), 'token', ['name'], unique=False, postgresql_using='gist')
+    op.create_index(op.f('ix_token_approved'), 'token', ['approved'], unique=False)
+    op.create_index(op.f('ix_token_symbol'), 'token', ['symbol'], unique=False)
+
+
+def downgrade() -> None:
+    op.drop_index(op.f('ix_token_symbol'), table_name='token')
+    op.drop_index(op.f('ix_token_approved'), table_name='token')
+    op.drop_index(op.f('ix_token_name'), table_name='token', postgresql_using='gist')

src/dexorder/database/model/token.py

@@ -1,6 +1,7 @@
 import logging
 from typing import TypedDict, Optional, NotRequired
 
+from sqlalchemy import Index
 from sqlalchemy.orm import Mapped, mapped_column
 
 from dexorder.database.column import Address, Blockchain, Uint8
@@ -39,10 +40,14 @@ class Token (Base):
     chain: Mapped[Blockchain] = mapped_column(primary_key=True)
     address: Mapped[Address] = mapped_column(primary_key=True)
     name: Mapped[str]
-    symbol: Mapped[str]
+    symbol: Mapped[str] = mapped_column(index=True)
     decimals: Mapped[Uint8]
     approved: Mapped[bool] = mapped_column(index=True)
 
+    __table_args__ = (
+        Index('idx_name', 'name', postgresql_using='gist'), # full text search on name
+    )
+
 
     @staticmethod
     def load(token_dict: OldTokenDict) -> 'Token':