add db migration for dataset table

Author: FuhuXia

database/models.py

@@ -5,7 +5,7 @@
 from flask_sqlalchemy import SQLAlchemy
 from geoalchemy2 import Geometry
 from sqlalchemy import CheckConstraint, Column, Enum, String, func
-from sqlalchemy.dialects.postgresql import JSONB, TSVECTOR
+from sqlalchemy.dialects.postgresql import JSONB
 from sqlalchemy.orm import DeclarativeBase, backref
 from sqlalchemy.ext.mutable import MutableDict
 
@@ -232,7 +232,6 @@ class Dataset(db.Model):
         db.DateTime,
         index=True
     )
-    search_vector = db.Column(TSVECTOR)
 
     organization = db.relationship(
         "Organization",

migrations/versions/d2a064c40061_create_dataset_table.py

@@ -0,0 +1,69 @@
+"""Create dataset table
+
+Revision ID: d2a064c40061
+Revises: 1c80316df048
+Create Date: 2025-11-21 15:30:00.000000
+
+"""
+
+import sqlalchemy as sa
+from alembic import op
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = "d2a064c40061"
+down_revision = "1c80316df048"
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.create_table(
+        "dataset",
+        sa.Column("slug", sa.String(), nullable=False),
+        sa.Column("dcat", postgresql.JSONB(astext_type=sa.Text()), nullable=False),
+        sa.Column("organization_id", sa.String(length=36), nullable=False),
+        sa.Column("harvest_source_id", sa.String(length=36), nullable=False),
+        sa.Column("harvest_record_id", sa.String(length=36), nullable=False),
+        sa.Column("popularity", sa.Numeric(), nullable=True),
+        sa.Column("last_harvested_date", sa.DateTime(), nullable=True),
+        sa.Column("id", sa.String(length=36), nullable=False),
+        sa.ForeignKeyConstraint(["organization_id"], ["organization.id"]),
+        sa.ForeignKeyConstraint(["harvest_source_id"], ["harvest_source.id"]),
+        sa.ForeignKeyConstraint(["harvest_record_id"], ["harvest_record.id"]),
+        sa.PrimaryKeyConstraint("id"),
+    )
+    op.create_index(op.f("ix_dataset_slug"), "dataset", ["slug"], unique=True)
+    op.create_index(
+        op.f("ix_dataset_organization_id"),
+        "dataset",
+        ["organization_id"],
+        unique=False,
+    )
+    op.create_index(
+        op.f("ix_dataset_harvest_source_id"),
+        "dataset",
+        ["harvest_source_id"],
+        unique=False,
+    )
+    op.create_index(
+        op.f("ix_dataset_harvest_record_id"),
+        "dataset",
+        ["harvest_record_id"],
+        unique=False,
+    )
+    op.create_index(
+        op.f("ix_dataset_last_harvested_date"),
+        "dataset",
+        ["last_harvested_date"],
+        unique=False,
+    )
+
+
+def downgrade():
+    op.drop_index(op.f("ix_dataset_last_harvested_date"), table_name="dataset")
+    op.drop_index(op.f("ix_dataset_harvest_record_id"), table_name="dataset")
+    op.drop_index(op.f("ix_dataset_harvest_source_id"), table_name="dataset")
+    op.drop_index(op.f("ix_dataset_organization_id"), table_name="dataset")
+    op.drop_index(op.f("ix_dataset_slug"), table_name="dataset")
+    op.drop_table("dataset")