JSONB is not automatically decoded

[mosquito]

JSONB column is not automatically decoded.

Workaround for me is:

async def set_json_charset(connection): await connection.set_type_codec( 'jsonb', encoder=lambda x: x, decoder=ujson.loads, schema='pg_catalog' ) await Pool("postgresql://127.0.0.1/template0", init=set_json_charset)

[elprans]

Not decoding JSON data automatically is by design.

[mosquito]

IMHO is't so strange. Jsonb fields serializes automatically while inserts but select returns string.

[elprans]

Jsonb fields serializes automatically

It doesn't:

import asyncio import asyncpg import json async def test(): conn = await asyncpg.connect() try: await conn.execute('CREATE TABLE tab(a jsonb);') await conn.execute('INSERT INTO tab(a) VALUES($1)', {'foo': 'bar'}) print(json.dumps(dict(await conn.fetchrow('SELECT * FROM tab')))) finally: await conn.execute('DROP TABLE tab') await conn.close() if __name__ == '__main__': loop = asyncio.get_event_loop() loop.run_until_complete(test())

 File "asyncpg/protocol/codecs/json.pyx", line 13, in asyncpg.protocol.protocol.jsonb_encode as_pg_string_and_size(settings, obj, &str, &size) File "asyncpg/protocol/codecs/text.pyx", line 12, in asyncpg.protocol.protocol.as_pg_string_and_size raise TypeError('expected str, got {}'.format(type(obj).__name__)) TypeError: expected str, got dict 

[mosquito]

hmmm... ok. My mistake. asyncpgsa serializes it. Thank you.