datafusion-sqlparse/tests/sqlparser_postgres.rs

#![warn(clippy::all)]
//! Test SQL syntax specific to PostgreSQL. The parser based on the
//! generic dialect is also tested (on the inputs it can handle).

use sqlparser::dialect::{GenericSqlDialect, PostgreSqlDialect};
use sqlparser::sqlast::*;
use sqlparser::test_utils::*;

#[test]
fn parse_create_table_with_defaults() {
    let sql = "CREATE TABLE public.customer (
            customer_id integer DEFAULT nextval(public.customer_customer_id_seq) NOT NULL,
            store_id smallint NOT NULL,
            first_name character varying(45) NOT NULL,
            last_name character varying(45) NOT NULL,
            email character varying(50),
            address_id smallint NOT NULL,
            activebool boolean DEFAULT true NOT NULL,
            create_date date DEFAULT now()::text NOT NULL,
            last_update timestamp without time zone DEFAULT now() NOT NULL,
            active integer NOT NULL)";
    match pg_and_generic().one_statement_parses_to(sql, "") {
        SQLStatement::SQLCreateTable {
            name,
            columns,
            constraints,
            external: false,
            file_format: None,
            location: None,
        } => {
            assert_eq!("public.customer", name.to_string());
            assert_eq!(10, columns.len());
            assert!(constraints.is_empty());

            let c_name = &columns[0];
            assert_eq!("customer_id", c_name.name);
            assert_eq!(SQLType::Int, c_name.data_type);
            assert_eq!(false, c_name.allow_null);

            let c_lat = &columns[1];
            assert_eq!("store_id", c_lat.name);
            assert_eq!(SQLType::SmallInt, c_lat.data_type);
            assert_eq!(false, c_lat.allow_null);

            let c_lng = &columns[2];
            assert_eq!("first_name", c_lng.name);
            assert_eq!(SQLType::Varchar(Some(45)), c_lng.data_type);
            assert_eq!(false, c_lng.allow_null);
        }
        _ => unreachable!(),
    }
}

#[test]
fn parse_create_table_from_pg_dump() {
    let sql = "CREATE TABLE public.customer (
            customer_id integer DEFAULT nextval('public.customer_customer_id_seq'::regclass) NOT NULL,
            store_id smallint NOT NULL,
            first_name character varying(45) NOT NULL,
            last_name character varying(45) NOT NULL,
            info text[],
            address_id smallint NOT NULL,
            activebool boolean DEFAULT true NOT NULL,
            create_date date DEFAULT now()::date NOT NULL,
            create_date1 date DEFAULT 'now'::text::date NOT NULL,
            last_update timestamp without time zone DEFAULT now(),
            release_year public.year,
            active integer
        )";
    match pg().one_statement_parses_to(sql, "") {
        SQLStatement::SQLCreateTable {
            name,
            columns,
            constraints,
            external: false,
            file_format: None,
            location: None,
        } => {
            assert_eq!("public.customer", name.to_string());
            assert!(constraints.is_empty());

            let c_customer_id = &columns[0];
            assert_eq!("customer_id", c_customer_id.name);
            assert_eq!(SQLType::Int, c_customer_id.data_type);
            assert_eq!(false, c_customer_id.allow_null);

            let c_store_id = &columns[1];
            assert_eq!("store_id", c_store_id.name);
            assert_eq!(SQLType::SmallInt, c_store_id.data_type);
            assert_eq!(false, c_store_id.allow_null);

            let c_first_name = &columns[2];
            assert_eq!("first_name", c_first_name.name);
            assert_eq!(SQLType::Varchar(Some(45)), c_first_name.data_type);
            assert_eq!(false, c_first_name.allow_null);

            let c_create_date1 = &columns[8];
            assert_eq!(
                Some(ASTNode::SQLCast {
                    expr: Box::new(ASTNode::SQLCast {
                        expr: Box::new(ASTNode::SQLValue(Value::SingleQuotedString(
                            "now".to_string()
                        ))),
                        data_type: SQLType::Text
                    }),
                    data_type: SQLType::Date
                }),
                c_create_date1.default
            );

            let c_release_year = &columns[10];
            assert_eq!(
                SQLType::Custom(SQLObjectName(vec![
                    "public".to_string(),
                    "year".to_string()
                ])),
                c_release_year.data_type
            );
        }
        _ => unreachable!(),
    }
}

#[test]
fn parse_create_table_with_inherit() {
    let sql = "\
               CREATE TABLE bazaar.settings (\
               settings_id uuid PRIMARY KEY DEFAULT uuid_generate_v4() NOT NULL, \
               user_id uuid UNIQUE, \
               value text[], \
               use_metric boolean DEFAULT true\
               )";
    match pg().verified_stmt(sql) {
        SQLStatement::SQLCreateTable {
            name,
            columns,
            constraints,
            external: false,
            file_format: None,
            location: None,
        } => {
            assert_eq!("bazaar.settings", name.to_string());
            assert!(constraints.is_empty());

            let c_name = &columns[0];
            assert_eq!("settings_id", c_name.name);
            assert_eq!(SQLType::Uuid, c_name.data_type);
            assert_eq!(false, c_name.allow_null);
            assert_eq!(true, c_name.is_primary);
            assert_eq!(false, c_name.is_unique);

            let c_name = &columns[1];
            assert_eq!("user_id", c_name.name);
            assert_eq!(SQLType::Uuid, c_name.data_type);
            assert_eq!(true, c_name.allow_null);
            assert_eq!(false, c_name.is_primary);
            assert_eq!(true, c_name.is_unique);
        }
        _ => unreachable!(),
    }
}

#[test]
fn parse_copy_example() {
    let sql = r#"COPY public.actor (actor_id, first_name, last_name, last_update, value) FROM stdin;
1	PENELOPE	GUINESS	2006-02-15 09:34:33 0.11111
2	NICK	WAHLBERG	2006-02-15 09:34:33 0.22222
3	ED	CHASE	2006-02-15 09:34:33 0.312323
4	JENNIFER	DAVIS	2006-02-15 09:34:33 0.3232
5	JOHNNY	LOLLOBRIGIDA	2006-02-15 09:34:33 1.343
6	BETTE	NICHOLSON	2006-02-15 09:34:33 5.0
7	GRACE	MOSTEL	2006-02-15 09:34:33 6.0
8	MATTHEW	JOHANSSON	2006-02-15 09:34:33 7.0
9	JOE	SWANK	2006-02-15 09:34:33 8.0
10	CHRISTIAN	GABLE	2006-02-15 09:34:33 9.1
11	ZERO	CAGE	2006-02-15 09:34:33 10.001
12	KARL	BERRY	2017-11-02 19:15:42.308637+08 11.001
A Fateful Reflection of a Waitress And a Boat who must Discover a Sumo Wrestler in Ancient China
Kwara & Kogi
{"Deleted Scenes","Behind the Scenes"}
'awe':5 'awe-inspir':4 'barbarella':1 'cat':13 'conquer':16 'dog':18 'feminist':10 'inspir':6 'monasteri':21 'must':15 'stori':7 'streetcar':2
PHP	₱ USD $
\N  Some other value
\\."#;
    let ast = pg_and_generic().one_statement_parses_to(sql, "");
    println!("{:#?}", ast);
    //assert_eq!(sql, ast.to_string());
}

fn pg() -> TestedDialects {
    TestedDialects {
        dialects: vec![Box::new(PostgreSqlDialect {})],
    }
}

fn pg_and_generic() -> TestedDialects {
    TestedDialects {
        dialects: vec![
            Box::new(PostgreSqlDialect {}),
            Box::new(GenericSqlDialect {}),
        ],
    }
}