create database engine
show database tables:
table1
table2
table3
describe table:
col1	Nullable(String)					
col2	Nullable(Int16)					
col1	Nullable(Int32)					
col2	Nullable(String)					
describe table:
CREATE TABLE SQLite.table1\n(\n    `col1` Nullable(String),\n    `col2` Nullable(Int16)\n)\nENGINE = SQLite
CREATE TABLE SQLite.table2\n(\n    `col1` Nullable(Int32),\n    `col2` Nullable(String)\n)\nENGINE = SQLite
select *:
line1	1
line2	2
line3	3
1	text1
2	text2
3	text3
test NULLs:
\N	1
not a null	2
\N	3
	4
detach
line1	1
line2	2
line3	3
1	text1
2	text2
3	text3
create table engine with table3
CREATE TABLE default.sqlite_table3\n(\n    `col1` String,\n    `col2` Int32\n)\nENGINE = SQLite
	1
not a null	2
	3
	4
test types
CREATE TABLE SQLite.table4\n(\n    `a` Nullable(Int32),\n    `b` Nullable(Int32),\n    `c` Nullable(Int8),\n    `d` Nullable(Int16),\n    `e` Nullable(Int32),\n    `bigint` Nullable(String),\n    `int2` Nullable(String),\n    `int8` Nullable(String)\n)\nENGINE = SQLite
CREATE TABLE SQLite.table5\n(\n    `a` Nullable(String),\n    `b` Nullable(String),\n    `c` Nullable(Float64),\n    `d` Nullable(Float64),\n    `e` Nullable(Float64),\n    `f` Nullable(Float32)\n)\nENGINE = SQLite
test table function
line1	1
line2	2
line3	3