def test_multi_clause_case(self):
self.assert_parsed_select(
'SELECT CASE WHEN x = 4 THEN 16 WHEN x = 5 THEN 25 END',
tq_ast.Select(
[
tq_ast.SelectField(
tq_ast.CaseExpression([
tq_ast.CaseClause(
tq_ast.BinaryOperator('=',
tq_ast.ColumnId('x'),
tq_ast.Literal(4)),
tq_ast.Literal(16)
),
tq_ast.CaseClause(
tq_ast.BinaryOperator('=',
tq_ast.ColumnId('x'),
tq_ast.Literal(5)),
tq_ast.Literal(25)
),
]),
None
)
],
None, None, None, None, None, None
)
)
def test_multi_part_join(self):
self.assert_parsed_select(
'SELECT t1.foo, t2.bar, t3.baz '
'FROM table1 t1 LEFT OUTER JOIN EACH table2 t2 ON t1.id = t2.id '
'JOIN table3 t3 ON t3.id = t1.id',
tq_ast.Select(
[
tq_ast.SelectField(tq_ast.ColumnId('t1.foo'), None, None),
tq_ast.SelectField(tq_ast.ColumnId('t2.bar'), None, None),
tq_ast.SelectField(tq_ast.ColumnId('t3.baz'), None, None)
],
tq_ast.Join(tq_ast.TableId('table1', 't1'), [
tq_ast.PartialJoin(
tq_ast.TableId('table2', 't2'),
tq_ast.JoinType.LEFT_OUTER,
tq_ast.BinaryOperator('=', tq_ast.ColumnId('t1.id'),
tq_ast.ColumnId('t2.id')),
),
tq_ast.PartialJoin(
tq_ast.TableId('table3', 't3'),
tq_ast.JoinType.INNER,
tq_ast.BinaryOperator('=', tq_ast.ColumnId('t3.id'),
tq_ast.ColumnId('t1.id')),
),
]), None, None, None, None, None, None))
def test_parens(self):
self.assert_parsed_select(
'SELECT 2 + (3 * 4)',
tq_ast.Select([
tq_ast.SelectField(
tq_ast.BinaryOperator(
'+', literal(2),
tq_ast.BinaryOperator('*', literal(3), literal(4))),
None)
], None, None, None, None, None, None))
def test_where(self):
self.assert_parsed_select(
'SELECT foo + 2 FROM bar WHERE foo > 3',
tq_ast.Select([
tq_ast.SelectField(
tq_ast.BinaryOperator('+', tq_ast.ColumnId('foo'),
tq_ast.Literal(2)), None)
], tq_ast.TableId('bar', None),
tq_ast.BinaryOperator('>', tq_ast.ColumnId('foo'),
tq_ast.Literal(3)), None, None,
None, None))
def test_arithmetic_operator_parsing(self):
self.assert_parsed_select(
'SELECT 1 * 2 + 3 / 4',
tq_ast.Select([
tq_ast.SelectField(
tq_ast.BinaryOperator(
'+', tq_ast.BinaryOperator('*', literal(1),
literal(2)),
tq_ast.BinaryOperator('/', literal(3), literal(4))),
None)
], None, None, None, None, None, None))
def test_operator_precedence(self):
self.assert_parsed_select(
'SELECT 2 + 3 * 4 + 5',
tq_ast.Select([
tq_ast.SelectField(
tq_ast.BinaryOperator(
'+',
tq_ast.BinaryOperator(
'+', literal(2),
tq_ast.BinaryOperator('*',
literal(3), literal(4))),
literal(5)), None)
], None, None, None, None, None, None))
def test_left_outer_join(self):
self.assert_parsed_select(
'SELECT t1.foo, t2.bar '
'FROM table1 t1 LEFT OUTER JOIN EACH table2 t2 ON t1.id = t2.id',
tq_ast.Select([
tq_ast.SelectField(tq_ast.ColumnId('t1.foo'), None),
tq_ast.SelectField(tq_ast.ColumnId('t2.bar'), None)],
tq_ast.Join(
tq_ast.TableId('table1', 't1'),
tq_ast.TableId('table2', 't2'),
tq_ast.BinaryOperator(
'=',
tq_ast.ColumnId('t1.id'),
tq_ast.ColumnId('t2.id')
),
is_left_outer=True
),
None,
None,
None,
None,
None
)
)
self.assert_parsed_select(
'SELECT t1.foo, t2.bar '
'FROM table1 t1 LEFT JOIN table2 t2 ON t1.id = t2.id',
tq_ast.Select([
tq_ast.SelectField(tq_ast.ColumnId('t1.foo'), None),
tq_ast.SelectField(tq_ast.ColumnId('t2.bar'), None)],
tq_ast.Join(
tq_ast.TableId('table1', 't1'),
tq_ast.TableId('table2', 't2'),
tq_ast.BinaryOperator(
'=',
tq_ast.ColumnId('t1.id'),
tq_ast.ColumnId('t2.id')
),
is_left_outer=True
),
None,
None,
None,
None,
None
)
)
def test_select_comparison(self):
self.assert_parsed_select(
'SELECT foo = bar FROM baz',
tq_ast.Select([
tq_ast.SelectField(
tq_ast.BinaryOperator('=', tq_ast.ColumnId('foo'),
tq_ast.ColumnId('bar')), None)
], tq_ast.TableId('baz', None), None, None, None, None, None))
def test_join_each(self):
self.assert_parsed_select(
'SELECT 0 FROM table1 t1 JOIN EACH table2 t2 ON t1.foo = t2.bar',
tq_ast.Select([tq_ast.SelectField(tq_ast.Literal(0), None)],
tq_ast.Join(tq_ast.TableId('table1', 't1'),
tq_ast.TableId('table2', 't2'),
tq_ast.BinaryOperator(
'=', tq_ast.ColumnId('t1.foo'),
tq_ast.ColumnId('t2.bar')),
is_left_outer=False), None, None, None,
None, None))
def test_multiple_select(self):
self.assert_parsed_select(
'SELECT a AS foo, b bar, a + 1 baz FROM test_table',
tq_ast.Select([
tq_ast.SelectField(tq_ast.ColumnId('a'), 'foo'),
tq_ast.SelectField(tq_ast.ColumnId('b'), 'bar'),
tq_ast.SelectField(
tq_ast.BinaryOperator('+', tq_ast.ColumnId('a'),
tq_ast.Literal(1)), 'baz')
], tq_ast.TableId('test_table', None), None, None, None, None,
None))
def test_operator_precedence(self):
self.assert_parsed_select(
'SELECT 2 + 3 * 4 + 5',
tq_ast.Select([
tq_ast.SelectField(
tq_ast.BinaryOperator(
'+',
tq_ast.BinaryOperator(
'+', literal(2),
tq_ast.BinaryOperator('*',
literal(3), literal(4))),
literal(5)), None, None)
], None, None, None, None, None, None, None))
self.assert_parsed_select(
'SELECT FALSE OR "xyz" CONTAINS "y"',
tq_ast.Select([
tq_ast.SelectField(
tq_ast.BinaryOperator(
'or', literal(False),
tq_ast.BinaryOperator('contains', literal('xyz'),
literal('y'))), None, None)
], None, None, None, None, None, None, None))
def p_expression_binary(p):
"""expression : expression PLUS expression
| expression MINUS expression
| expression STAR expression
| expression DIVIDED_BY expression
| expression MOD expression
| expression EQUALS expression
| expression NOT_EQUAL expression
| expression GREATER_THAN expression
| expression LESS_THAN expression
| expression GREATER_THAN_OR_EQUAL expression
| expression LESS_THAN_OR_EQUAL expression
| expression AND expression
| expression OR expression
"""
p[0] = tq_ast.BinaryOperator(p[2], p[1], p[3])
def test_join(self):
self.assert_parsed_select(
'SELECT t1.foo, t2.bar '
'FROM table1 t1 JOIN table2 t2 ON t1.id = t2.id',
tq_ast.Select(
[
tq_ast.SelectField(tq_ast.ColumnId('t1.foo'), None, None),
tq_ast.SelectField(tq_ast.ColumnId('t2.bar'), None, None)
],
tq_ast.Join(tq_ast.TableId('table1', 't1'), [
tq_ast.PartialJoin(
tq_ast.TableId('table2', 't2'),
tq_ast.JoinType.INNER,
tq_ast.BinaryOperator('=', tq_ast.ColumnId('t1.id'),
tq_ast.ColumnId('t2.id')),
),
]), None, None, None, None, None, None))
