fix: alter sql columns to long text

superset/migrations/versions/afc69274c25a_alter_sql_column_data_type_in_query_mysql_table.py

@@ -0,0 +1,56 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+"""update the sql, select_sql, and executed_sql columns in the
+   query table in mysql dbs to be long text columns
+
+Revision ID: afc69274c25a
+Revises: e9df189e5c7e
+Create Date: 2019-05-06 14:30:26.181449
+
+"""
+from alembic import op
+from sqlalchemy.databases import mysql
+from sqlalchemy.dialects.mysql.base import MySQLDialect
+import sqlalchemy as sa
+
+# revision identifiers, used by Alembic.
+revision = 'afc69274c25a'
+down_revision = 'e9df189e5c7e'
+
+
+def upgrade():
+    bind = op.get_bind()
+    if isinstance(bind.dialect, MySQLDialect):
+        with op.batch_alter_table('query') as batch_op:
+            batch_op.alter_column(
+                'sql', existing_type=sa.Text, type_=mysql.LONGTEXT)
+            batch_op.alter_column(
+                'select_sql', existing_type=sa.Text, type_=mysql.LONGTEXT)
+            batch_op.alter_column(
+                'executed_sql', existing_type=sa.Text, type_=mysql.LONGTEXT)
+
+
+def downgrade():
+    bind = op.get_bind()
+    if isinstance(bind.dialect, MySQLDialect):
+        with op.batch_alter_table('query') as batch_op:
+            batch_op.alter_column(
+                'sql', existing_type=mysql.LONGTEXT, type_=sa.Text)
+            batch_op.alter_column(
+                'select_sql', existing_type=mysql.LONGTEXT, type_=sa.Text)
+            batch_op.alter_column(
+                'executed_sql', existing_type=mysql.LONGTEXT, type_=sa.Text)