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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Execution of STRUCT item access doesn't work.","articleBody":"Compilation works:\r\n\r\n```\r\n\u003e\u003e\u003e select([t], t.c.object['object_id']=='x')\r\n\u003csqlalchemy.sql.selectable.Select object at 0x7f120baf18d0\u003e\r\n```\r\n\r\nBut execution doesn't:\r\n\r\n```\r\n\u003e\u003e\u003e conn.execute(select([t], t.c.object['object_id']=='x'))\r\nTraceback (most recent call last):\r\n  File \"/home/jim/.pyenv/versions/3.6.13/lib/python3.6/site-packages/sqlalchemy/sql/compiler.py\", line 2071, in visit_binary\r\n    opstring = OPERATORS[operator_]\r\nKeyError: \u003cfunction json_getitem_op at 0x7f120bfa9d08\u003e\r\n\r\nThe above exception was the direct cause of the following exception:\r\n\r\nTraceback (most recent call last):\r\n...\r\n  File \"/home/jim/.pyenv/versions/3.6.13/lib/python3.6/site-packages/sqlalchemy/util/compat.py\", line 207, in raise_\r\n    raise exception\r\nsqlalchemy.exc.UnsupportedCompilationError: Compiler \u003cpybigquery.sqlalchemy_bigquery.BigQueryCompiler object at 0x7f120baf1a20\u003e can't render element of type \u003cfunction json_getitem_op at 0x7f120bfa9d08\u003e (Background on this error at: https://sqlalche.me/e/14/l7de)\r\n```","author":{"url":"https://github.com/jimfulton","@type":"Person","name":"jimfulton"},"datePublished":"2021-08-24T15:11:36.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/293/python-bigquery-sqlalchemy/issues/293"}