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test_run = require('test_run').new()
---
...
engine = test_run:get_cfg('engine')
---
...
_ = box.space._session_settings:update('sql_default_engine', {{'=', 2, engine}})
---
...
-- box.cfg()
-- create space
box.execute("CREATE TABLE t3(id INT, a text, b TEXT, PRIMARY KEY(id))")
---
- row_count: 1
...
-- Seed entries
box.execute("INSERT INTO t3 VALUES(1, 'abc',NULL)");
---
- row_count: 1
...
box.execute("INSERT INTO t3 VALUES(2, NULL,'xyz')");
---
- row_count: 1
...
-- Select must return properly decoded `NULL`
box.execute("SELECT * FROM t3")
---
- metadata:
- name: ID
type: integer
- name: A
type: string
- name: B
type: string
rows:
- [1, 'abc', null]
- [2, null, 'xyz']
...
-- Cleanup
box.execute("DROP TABLE t3")
---
- row_count: 1
...
-- Debug
-- require("console").start()
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