initial commit of new version

alembic/README

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+Generic single-database configuration.

alembic/env.py

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+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+target_metadata = None
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline() -> None:
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online() -> None:
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+    connectable = engine_from_config(
+        config.get_section(config.config_ini_section, {}),
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection, target_metadata=target_metadata
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

alembic/script.py.mako

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+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision: str = ${repr(up_revision)}
+down_revision: Union[str, Sequence[str], None] = ${repr(down_revision)}
+branch_labels: Union[str, Sequence[str], None] = ${repr(branch_labels)}
+depends_on: Union[str, Sequence[str], None] = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    ${downgrades if downgrades else "pass"}

alembic/versions/2026_03_30_1700_10_c0b336d0d88a_create_image_table.py

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+"""create image table
+
+Revision ID: c0b336d0d88a
+Revises: 
+Create Date: 2026-03-30 17:00:10.164166
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = 'c0b336d0d88a'
+down_revision: Union[str, Sequence[str], None] = None
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    op.create_table(
+        'avdb_image',
+        sa.Column('img_id', sa.Integer, primary_key=True),
+        sa.Column('img_path', sa.Text, nullable=False, unique=True),
+        sa.Column('img_name', sa.Text, nullable=False),
+        sa.Column('width', sa.Integer, nullable=False),
+        sa.Column('height', sa.Integer, nullable=False),
+        sa.Column('created_at', sa.TIMESTAMP, server_default=sa.func.current_timestamp())
+    )
+    
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    op.drop_table('avdb_image')

alembic/versions/2026_03_30_2132_57_37c302fcd3c3_create_pyramid_table.py

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+"""create pyramid table
+
+Revision ID: 37c302fcd3c3
+Revises: c0b336d0d88a
+Create Date: 2026-03-30 21:32:57.704245
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+from pgvector.sqlalchemy import Vector
+
+# revision identifiers, used by Alembic.
+revision: str = '37c302fcd3c3'
+down_revision: Union[str, Sequence[str], None] = 'c0b336d0d88a'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    op.create_table(
+        'pyramiddata',
+        sa.Column('pyrdata_id', sa.BigInteger, primary_key=True),
+        sa.Column('img_id', sa.Integer, nullable=False),
+        sa.Column('level', sa.Integer, nullable=False),
+        sa.Column('tilex', sa.Integer, nullable=False),
+        sa.Column('tiley', sa.Integer, nullable=False),
+        sa.Column('x', sa.Integer, nullable=False),
+        sa.Column('y', sa.Integer, nullable=False),
+        sa.Column('x0', sa.Integer, nullable=False),
+        sa.Column('y0', sa.Integer, nullable=False),
+        sa.Column('w', sa.Integer, nullable=False),
+        sa.Column('h', sa.Integer, nullable=False),
+        sa.Column('hash', sa.Text, nullable=False),
+        sa.Column('histogram', Vector(48), nullable=True),
+        sa.Column('tile_data', Vector(3), nullable=True),
+        sa.Column('block_data', Vector(27), nullable=True)
+    )
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    op.drop_table('pyramiddata')

alembic/versions/2026_04_23_1648_07_6762186cc97c_create_second_order_table.py

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+"""create second-order table
+
+Revision ID: 6762186cc97c
+Revises: 37c302fcd3c3
+Create Date: 2026-04-23 16:48:07.206738
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+from pgvector.sqlalchemy import Vector
+
+
+# revision identifiers, used by Alembic.
+revision: str = '6762186cc97c'
+down_revision: Union[str, Sequence[str], None] = '37c302fcd3c3'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    op.create_table(
+        'pyramiddata_2tiles',
+        sa.Column('pyrdata_id', sa.BigInteger, primary_key=True),
+        sa.Column('img_id', sa.Integer, nullable=False),
+        sa.Column('level', sa.Integer, nullable=False),
+        sa.Column('tilex_a', sa.Integer, nullable=False),
+        sa.Column('tiley_a', sa.Integer, nullable=False),
+        sa.Column('x_a', sa.Integer, nullable=False),
+        sa.Column('y_a', sa.Integer, nullable=False),
+        sa.Column('x0_a', sa.Integer, nullable=False),
+        sa.Column('y0_a', sa.Integer, nullable=False),
+        sa.Column('w_a', sa.Integer, nullable=False),
+        sa.Column('h_a', sa.Integer, nullable=False),
+        sa.Column('tilex_b', sa.Integer, nullable=False),
+        sa.Column('tiley_b', sa.Integer, nullable=False),
+        sa.Column('x_b', sa.Integer, nullable=False),
+        sa.Column('y_b', sa.Integer, nullable=False),
+        sa.Column('x0_b', sa.Integer, nullable=False),
+        sa.Column('y0_b', sa.Integer, nullable=False),
+        sa.Column('w_b', sa.Integer, nullable=False),
+        sa.Column('h_b', sa.Integer, nullable=False),
+        sa.Column('hash', sa.Text, nullable=False),
+        sa.Column('tile_data', Vector(6), nullable=True),
+)
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    op.drop_table('pyramiddata_2tiles')

alembic/versions/2026_05_05_0052_23_f750c5d057a7_create_level3_separate_table.py

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+"""create level3 separate table
+
+Revision ID: f750c5d057a7
+Revises: 6762186cc97c
+Create Date: 2026-05-05 00:52:23.600420
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+from pgvector.sqlalchemy import Vector
+
+
+# revision identifiers, used by Alembic.
+revision: str = 'f750c5d057a7'
+down_revision: Union[str, Sequence[str], None] = '6762186cc97c'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    op.create_table(
+        'pyramiddata_level3',
+        sa.Column('pyrdata_id', sa.BigInteger, primary_key=True),
+        sa.Column('img_id', sa.Integer, nullable=False),
+        sa.Column('level', sa.Integer, nullable=False),
+        sa.Column('tilex', sa.Integer, nullable=False),
+        sa.Column('tiley', sa.Integer, nullable=False),
+        sa.Column('x', sa.Integer, nullable=False),
+        sa.Column('y', sa.Integer, nullable=False),
+        sa.Column('x0', sa.Integer, nullable=False),
+        sa.Column('y0', sa.Integer, nullable=False),
+        sa.Column('w', sa.Integer, nullable=False),
+        sa.Column('h', sa.Integer, nullable=False),
+        sa.Column('hash', sa.Text, nullable=False),
+        sa.Column('histogram', Vector(48), nullable=True),
+        sa.Column('tile_data', Vector(3), nullable=True),
+        sa.Column('block_data', Vector(27), nullable=True)
+    )
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    op.drop_table('pyramiddata_level3')