156 lines
8.3 KiB
Python
156 lines
8.3 KiB
Python
"""add symbol index tables
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Revision ID: add_symbol_index_tables
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Revises: add_kg_sync_runs
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Create Date: 2026-03-04
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"""
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from __future__ import annotations
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from alembic import op
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import sqlalchemy as sa
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try:
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from sqlalchemy.dialects.postgresql import JSONB
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except Exception: # pragma: no cover
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JSONB = sa.JSON
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# revision identifiers, used by Alembic.
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revision = "add_symbol_index_tables"
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down_revision = "add_kg_sync_runs"
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branch_labels = None
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depends_on = None
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def _json_type(bind):
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return JSONB() if bind.dialect.name == "postgresql" else sa.JSON()
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def _table_exists(bind, table_name: str) -> bool:
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inspector = sa.inspect(bind)
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return inspector.has_table(table_name)
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def _index_exists(bind, table_name: str, index_name: str) -> bool:
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inspector = sa.inspect(bind)
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indexes = inspector.get_indexes(table_name)
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return any(idx.get("name") == index_name for idx in indexes)
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def _create_index_if_not_exists(bind, index_name: str, table_name: str, columns: list[str]) -> None:
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if not _index_exists(bind, table_name, index_name):
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op.create_index(index_name, table_name, columns)
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def _drop_index_if_exists(bind, index_name: str, table_name: str) -> None:
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if _index_exists(bind, table_name, index_name):
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op.drop_index(index_name, table_name=table_name)
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def upgrade() -> None:
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bind = op.get_bind()
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if not _table_exists(bind, "symbol_definitions"):
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op.create_table(
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"symbol_definitions",
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sa.Column("id", sa.Integer(), primary_key=True, autoincrement=True),
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sa.Column("tenant_id", sa.BigInteger(), nullable=False, server_default="1"),
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sa.Column("created_at", sa.TIMESTAMP(), nullable=False, server_default=sa.func.now()),
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sa.Column("updated_at", sa.TIMESTAMP(), nullable=False, server_default=sa.func.now(), onupdate=sa.func.now()),
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sa.Column("file_path", sa.String(length=600), nullable=False),
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sa.Column("language", sa.String(length=20), nullable=False),
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sa.Column("symbol_type", sa.String(length=32), nullable=False),
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sa.Column("symbol_name", sa.String(length=255), nullable=False),
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sa.Column("qualified_name", sa.String(length=700), nullable=True),
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sa.Column("start_line", sa.Integer(), nullable=True),
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sa.Column("end_line", sa.Integer(), nullable=True),
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sa.Column("signature", sa.String(length=1000), nullable=True),
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sa.Column("docstring", sa.String(length=2000), nullable=True),
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sa.Column("file_hash", sa.String(length=64), nullable=True),
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sa.Column("source_mtime", sa.TIMESTAMP(), nullable=True),
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sa.Column("status", sa.String(length=20), nullable=False, server_default="active"),
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sa.Column("payload", _json_type(bind), nullable=True),
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sa.Column("last_indexed_at", sa.TIMESTAMP(), nullable=False, server_default=sa.func.now()),
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sa.UniqueConstraint(
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"tenant_id",
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"file_path",
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"symbol_type",
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"symbol_name",
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"start_line",
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name="uq_symbol_definitions_tenant_file_type_name_line",
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),
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)
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_create_index_if_not_exists(bind, "ix_symbol_definitions_tenant_id", "symbol_definitions", ["tenant_id"])
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_create_index_if_not_exists(bind, "ix_symbol_definitions_file_path", "symbol_definitions", ["file_path"])
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_create_index_if_not_exists(bind, "ix_symbol_definitions_language", "symbol_definitions", ["language"])
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_create_index_if_not_exists(bind, "ix_symbol_definitions_symbol_type", "symbol_definitions", ["symbol_type"])
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_create_index_if_not_exists(bind, "ix_symbol_definitions_symbol_name", "symbol_definitions", ["symbol_name"])
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_create_index_if_not_exists(bind, "ix_symbol_definitions_qualified_name", "symbol_definitions", ["qualified_name"])
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_create_index_if_not_exists(bind, "ix_symbol_definitions_start_line", "symbol_definitions", ["start_line"])
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_create_index_if_not_exists(bind, "ix_symbol_definitions_file_hash", "symbol_definitions", ["file_hash"])
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_create_index_if_not_exists(bind, "ix_symbol_definitions_status", "symbol_definitions", ["status"])
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_create_index_if_not_exists(bind, "ix_symbol_definitions_last_indexed_at", "symbol_definitions", ["last_indexed_at"])
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if not _table_exists(bind, "symbol_references"):
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op.create_table(
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"symbol_references",
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sa.Column("id", sa.Integer(), primary_key=True, autoincrement=True),
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sa.Column("tenant_id", sa.BigInteger(), nullable=False, server_default="1"),
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sa.Column("created_at", sa.TIMESTAMP(), nullable=False, server_default=sa.func.now()),
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sa.Column("updated_at", sa.TIMESTAMP(), nullable=False, server_default=sa.func.now(), onupdate=sa.func.now()),
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sa.Column("source_symbol_id", sa.Integer(), sa.ForeignKey("symbol_definitions.id", ondelete="CASCADE"), nullable=True),
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sa.Column("file_path", sa.String(length=600), nullable=False),
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sa.Column("relation_type", sa.String(length=32), nullable=False),
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sa.Column("target_symbol_name", sa.String(length=255), nullable=False),
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sa.Column("target_qualified_name", sa.String(length=700), nullable=True),
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sa.Column("start_line", sa.Integer(), nullable=True),
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sa.Column("end_line", sa.Integer(), nullable=True),
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sa.Column("payload", _json_type(bind), nullable=True),
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sa.UniqueConstraint(
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"tenant_id",
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"file_path",
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"relation_type",
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"target_symbol_name",
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"start_line",
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"source_symbol_id",
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name="uq_symbol_references_tenant_file_relation_target_line_source",
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),
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)
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_create_index_if_not_exists(bind, "ix_symbol_references_tenant_id", "symbol_references", ["tenant_id"])
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_create_index_if_not_exists(bind, "ix_symbol_references_source_symbol_id", "symbol_references", ["source_symbol_id"])
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_create_index_if_not_exists(bind, "ix_symbol_references_file_path", "symbol_references", ["file_path"])
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_create_index_if_not_exists(bind, "ix_symbol_references_relation_type", "symbol_references", ["relation_type"])
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_create_index_if_not_exists(bind, "ix_symbol_references_target_symbol_name", "symbol_references", ["target_symbol_name"])
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_create_index_if_not_exists(bind, "ix_symbol_references_target_qualified_name", "symbol_references", ["target_qualified_name"])
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_create_index_if_not_exists(bind, "ix_symbol_references_start_line", "symbol_references", ["start_line"])
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def downgrade() -> None:
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bind = op.get_bind()
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if _table_exists(bind, "symbol_references"):
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_drop_index_if_exists(bind, "ix_symbol_references_start_line", "symbol_references")
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_drop_index_if_exists(bind, "ix_symbol_references_target_qualified_name", "symbol_references")
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_drop_index_if_exists(bind, "ix_symbol_references_target_symbol_name", "symbol_references")
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_drop_index_if_exists(bind, "ix_symbol_references_relation_type", "symbol_references")
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_drop_index_if_exists(bind, "ix_symbol_references_file_path", "symbol_references")
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_drop_index_if_exists(bind, "ix_symbol_references_source_symbol_id", "symbol_references")
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_drop_index_if_exists(bind, "ix_symbol_references_tenant_id", "symbol_references")
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op.drop_table("symbol_references")
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if _table_exists(bind, "symbol_definitions"):
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_drop_index_if_exists(bind, "ix_symbol_definitions_last_indexed_at", "symbol_definitions")
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_drop_index_if_exists(bind, "ix_symbol_definitions_status", "symbol_definitions")
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_drop_index_if_exists(bind, "ix_symbol_definitions_file_hash", "symbol_definitions")
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_drop_index_if_exists(bind, "ix_symbol_definitions_start_line", "symbol_definitions")
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_drop_index_if_exists(bind, "ix_symbol_definitions_qualified_name", "symbol_definitions")
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_drop_index_if_exists(bind, "ix_symbol_definitions_symbol_name", "symbol_definitions")
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_drop_index_if_exists(bind, "ix_symbol_definitions_symbol_type", "symbol_definitions")
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_drop_index_if_exists(bind, "ix_symbol_definitions_language", "symbol_definitions")
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_drop_index_if_exists(bind, "ix_symbol_definitions_file_path", "symbol_definitions")
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_drop_index_if_exists(bind, "ix_symbol_definitions_tenant_id", "symbol_definitions")
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op.drop_table("symbol_definitions")
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