from tests.dialects.test_dialect import Validator class TestDatabricks(Validator): dialect = "databricks" def test_databricks(self): self.validate_identity("CREATE TABLE t (c STRUCT)") self.validate_identity("CREATE TABLE my_table TBLPROPERTIES (a.b=15)") self.validate_identity("CREATE TABLE my_table TBLPROPERTIES ('a.b'=15)") self.validate_identity("SELECT CAST('11 23:4:0' AS INTERVAL DAY TO HOUR)") self.validate_identity("SELECT CAST('11 23:4:0' AS INTERVAL DAY TO MINUTE)") self.validate_identity("SELECT CAST('11 23:4:0' AS INTERVAL DAY TO SECOND)") self.validate_identity("SELECT CAST('23:00:00' AS INTERVAL HOUR TO MINUTE)") self.validate_identity("SELECT CAST('23:00:00' AS INTERVAL HOUR TO SECOND)") self.validate_identity("SELECT CAST('23:00:00' AS INTERVAL MINUTE TO SECOND)") self.validate_identity("CREATE TABLE target SHALLOW CLONE source") self.validate_identity("INSERT INTO a REPLACE WHERE cond VALUES (1), (2)") self.validate_identity("SELECT c1 : price") self.validate_identity("CREATE FUNCTION a.b(x INT) RETURNS INT RETURN x + 1") self.validate_identity("CREATE FUNCTION a AS b") self.validate_identity("SELECT ${x} FROM ${y} WHERE ${z} > 1") self.validate_identity("CREATE TABLE foo (x DATE GENERATED ALWAYS AS (CAST(y AS DATE)))") self.validate_identity( "SELECT * FROM sales UNPIVOT INCLUDE NULLS (sales FOR quarter IN (q1 AS `Jan-Mar`))" ) self.validate_identity( "SELECT * FROM sales UNPIVOT EXCLUDE NULLS (sales FOR quarter IN (q1 AS `Jan-Mar`))" ) self.validate_all( "CREATE TABLE foo (x INT GENERATED ALWAYS AS (YEAR(y)))", write={ "databricks": "CREATE TABLE foo (x INT GENERATED ALWAYS AS (YEAR(TO_DATE(y))))", "tsql": "CREATE TABLE foo (x AS YEAR(CAST(y AS DATE)))", }, ) self.validate_all( "CREATE TABLE t1 AS (SELECT c FROM t2)", read={ "teradata": "CREATE TABLE t1 AS (SELECT c FROM t2) WITH DATA", }, ) # https://docs.databricks.com/sql/language-manual/functions/colonsign.html def test_json(self): self.validate_identity("""SELECT c1 : price FROM VALUES ('{ "price": 5 }') AS T(c1)""") self.validate_all( """SELECT c1:['price'] FROM VALUES('{ "price": 5 }') AS T(c1)""", write={ "databricks": """SELECT c1 : ARRAY('price') FROM VALUES ('{ "price": 5 }') AS T(c1)""", }, ) self.validate_all( """SELECT c1:item[1].price FROM VALUES('{ "item": [ { "model" : "basic", "price" : 6.12 }, { "model" : "medium", "price" : 9.24 } ] }') AS T(c1)""", write={ "databricks": """SELECT c1 : item[1].price FROM VALUES ('{ "item": [ { "model" : "basic", "price" : 6.12 }, { "model" : "medium", "price" : 9.24 } ] }') AS T(c1)""", }, ) self.validate_all( """SELECT c1:item[*].price FROM VALUES('{ "item": [ { "model" : "basic", "price" : 6.12 }, { "model" : "medium", "price" : 9.24 } ] }') AS T(c1)""", write={ "databricks": """SELECT c1 : item[*].price FROM VALUES ('{ "item": [ { "model" : "basic", "price" : 6.12 }, { "model" : "medium", "price" : 9.24 } ] }') AS T(c1)""", }, ) self.validate_all( """SELECT from_json(c1:item[*].price, 'ARRAY')[0] FROM VALUES('{ "item": [ { "model" : "basic", "price" : 6.12 }, { "model" : "medium", "price" : 9.24 } ] }') AS T(c1)""", write={ "databricks": """SELECT FROM_JSON(c1 : item[*].price, 'ARRAY')[0] FROM VALUES ('{ "item": [ { "model" : "basic", "price" : 6.12 }, { "model" : "medium", "price" : 9.24 } ] }') AS T(c1)""", }, ) self.validate_all( """SELECT inline(from_json(c1:item[*], 'ARRAY>')) FROM VALUES('{ "item": [ { "model" : "basic", "price" : 6.12 }, { "model" : "medium", "price" : 9.24 } ] }') AS T(c1)""", write={ "databricks": """SELECT INLINE(FROM_JSON(c1 : item[*], 'ARRAY>')) FROM VALUES ('{ "item": [ { "model" : "basic", "price" : 6.12 }, { "model" : "medium", "price" : 9.24 } ] }') AS T(c1)""", }, ) def test_datediff(self): self.validate_all( "SELECT DATEDIFF(year, 'start', 'end')", write={ "tsql": "SELECT DATEDIFF(year, 'start', 'end')", "databricks": "SELECT DATEDIFF(year, 'start', 'end')", }, ) self.validate_all( "SELECT DATEDIFF(microsecond, 'start', 'end')", write={ "databricks": "SELECT DATEDIFF(microsecond, 'start', 'end')", "postgres": "SELECT CAST(EXTRACT(epoch FROM CAST('end' AS TIMESTAMP) - CAST('start' AS TIMESTAMP)) * 1000000 AS BIGINT)", }, ) self.validate_all( "SELECT DATEDIFF(millisecond, 'start', 'end')", write={ "databricks": "SELECT DATEDIFF(millisecond, 'start', 'end')", "postgres": "SELECT CAST(EXTRACT(epoch FROM CAST('end' AS TIMESTAMP) - CAST('start' AS TIMESTAMP)) * 1000 AS BIGINT)", }, ) self.validate_all( "SELECT DATEDIFF(second, 'start', 'end')", write={ "databricks": "SELECT DATEDIFF(second, 'start', 'end')", "postgres": "SELECT CAST(EXTRACT(epoch FROM CAST('end' AS TIMESTAMP) - CAST('start' AS TIMESTAMP)) AS BIGINT)", }, ) self.validate_all( "SELECT DATEDIFF(minute, 'start', 'end')", write={ "databricks": "SELECT DATEDIFF(minute, 'start', 'end')", "postgres": "SELECT CAST(EXTRACT(epoch FROM CAST('end' AS TIMESTAMP) - CAST('start' AS TIMESTAMP)) / 60 AS BIGINT)", }, ) self.validate_all( "SELECT DATEDIFF(hour, 'start', 'end')", write={ "databricks": "SELECT DATEDIFF(hour, 'start', 'end')", "postgres": "SELECT CAST(EXTRACT(epoch FROM CAST('end' AS TIMESTAMP) - CAST('start' AS TIMESTAMP)) / 3600 AS BIGINT)", }, ) self.validate_all( "SELECT DATEDIFF(day, 'start', 'end')", write={ "databricks": "SELECT DATEDIFF(day, 'start', 'end')", "postgres": "SELECT CAST(EXTRACT(epoch FROM CAST('end' AS TIMESTAMP) - CAST('start' AS TIMESTAMP)) / 86400 AS BIGINT)", }, ) self.validate_all( "SELECT DATEDIFF(week, 'start', 'end')", write={ "databricks": "SELECT DATEDIFF(week, 'start', 'end')", "postgres": "SELECT CAST(EXTRACT(days FROM (CAST('end' AS TIMESTAMP) - CAST('start' AS TIMESTAMP))) / 7 AS BIGINT)", }, ) self.validate_all( "SELECT DATEDIFF(month, 'start', 'end')", write={ "databricks": "SELECT DATEDIFF(month, 'start', 'end')", "postgres": "SELECT CAST(EXTRACT(year FROM AGE(CAST('end' AS TIMESTAMP), CAST('start' AS TIMESTAMP))) * 12 + EXTRACT(month FROM AGE(CAST('end' AS TIMESTAMP), CAST('start' AS TIMESTAMP))) AS BIGINT)", }, ) self.validate_all( "SELECT DATEDIFF(quarter, 'start', 'end')", write={ "databricks": "SELECT DATEDIFF(quarter, 'start', 'end')", "postgres": "SELECT CAST(EXTRACT(year FROM AGE(CAST('end' AS TIMESTAMP), CAST('start' AS TIMESTAMP))) * 4 + EXTRACT(month FROM AGE(CAST('end' AS TIMESTAMP), CAST('start' AS TIMESTAMP))) / 3 AS BIGINT)", }, ) self.validate_all( "SELECT DATEDIFF(year, 'start', 'end')", write={ "databricks": "SELECT DATEDIFF(year, 'start', 'end')", "postgres": "SELECT CAST(EXTRACT(year FROM AGE(CAST('end' AS TIMESTAMP), CAST('start' AS TIMESTAMP))) AS BIGINT)", }, ) def test_add_date(self): self.validate_all( "SELECT DATEADD(year, 1, '2020-01-01')", write={ "tsql": "SELECT DATEADD(year, 1, '2020-01-01')", "databricks": "SELECT DATEADD(year, 1, '2020-01-01')", }, ) self.validate_all( "SELECT DATEDIFF('end', 'start')", write={"databricks": "SELECT DATEDIFF(DAY, 'start', 'end')"}, ) self.validate_all( "SELECT DATE_ADD('2020-01-01', 1)", write={ "tsql": "SELECT DATEADD(DAY, 1, '2020-01-01')", "databricks": "SELECT DATEADD(DAY, 1, '2020-01-01')", }, ) def test_without_as(self): self.validate_all( "CREATE TABLE x (SELECT 1)", write={ "databricks": "CREATE TABLE x AS (SELECT 1)", }, ) self.validate_all( "WITH x (select 1) SELECT * FROM x", write={ "databricks": "WITH x AS (SELECT 1) SELECT * FROM x", }, )