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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
-- scalar affinity
box.execute("CREATE TABLE test1 (f1 INT, f2 INT, PRIMARY KEY(f1))")
box.execute("CREATE INDEX test1_index ON test1 (f2)")
-- integer affinity
box.execute("CREATE TABLE test2 (f1 INT, f2 INT, PRIMARY KEY(f1))")
-- Seed entries
box.execute("INSERT INTO test1 VALUES(1, 2)");
box.execute("INSERT INTO test1 VALUES(2, NULL)");
box.execute("INSERT INTO test1 VALUES(3, NULL)");
box.execute("INSERT INTO test1 VALUES(4, 3)");
box.execute("INSERT INTO test2 VALUES(1, 2)");
-- Select must return properly decoded `NULL`
box.execute("SELECT MAX(f1) FROM test1")
box.execute("SELECT MAX(f2) FROM test1")
box.execute("SELECT MAX(f1) FROM test2")
-- Cleanup
box.execute("DROP INDEX test1_index ON test1")
box.execute("DROP TABLE test1")
box.execute("DROP TABLE test2")
-- Debug
-- require("console").start()
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