mirror of
https://github.com/apache/datafusion-sqlparser-rs.git
synced 2025-07-14 12:05:00 +00:00
b1cbc55128
The Ident type was previously an alias for a String. Turn it into a full fledged struct, so that the parser can preserve the distinction between identifier value and quote style already made by the tokenizer's Word structure.
110 lines
3.6 KiB
Rust
110 lines
3.6 KiB
Rust
// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#![warn(clippy::all)]
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//! Test SQL syntax specific to MySQL. The parser based on the generic dialect
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//! is also tested (on the inputs it can handle).
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use sqlparser::ast::*;
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use sqlparser::dialect::{GenericDialect, MySqlDialect};
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use sqlparser::test_utils::*;
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#[test]
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fn parse_identifiers() {
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mysql().verified_stmt("SELECT $a$, àà");
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}
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#[test]
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fn parse_show_columns() {
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let table_name = ObjectName(vec![Ident::new("mytable")]);
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assert_eq!(
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mysql_and_generic().verified_stmt("SHOW COLUMNS FROM mytable"),
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Statement::ShowColumns {
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extended: false,
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full: false,
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table_name: table_name.clone(),
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filter: None,
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}
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);
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assert_eq!(
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mysql_and_generic().verified_stmt("SHOW COLUMNS FROM mydb.mytable"),
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Statement::ShowColumns {
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extended: false,
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full: false,
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table_name: ObjectName(vec![Ident::new("mydb"), Ident::new("mytable")]),
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filter: None,
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}
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);
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assert_eq!(
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mysql_and_generic().verified_stmt("SHOW EXTENDED COLUMNS FROM mytable"),
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Statement::ShowColumns {
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extended: true,
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full: false,
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table_name: table_name.clone(),
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filter: None,
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}
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);
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assert_eq!(
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mysql_and_generic().verified_stmt("SHOW FULL COLUMNS FROM mytable"),
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Statement::ShowColumns {
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extended: false,
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full: true,
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table_name: table_name.clone(),
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filter: None,
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}
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);
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assert_eq!(
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mysql_and_generic().verified_stmt("SHOW COLUMNS FROM mytable LIKE 'pattern'"),
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Statement::ShowColumns {
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extended: false,
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full: false,
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table_name: table_name.clone(),
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filter: Some(ShowStatementFilter::Like("pattern".into())),
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}
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);
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assert_eq!(
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mysql_and_generic().verified_stmt("SHOW COLUMNS FROM mytable WHERE 1 = 2"),
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Statement::ShowColumns {
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extended: false,
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full: false,
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table_name: table_name.clone(),
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filter: Some(ShowStatementFilter::Where(
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mysql_and_generic().verified_expr("1 = 2")
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)),
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}
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);
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mysql_and_generic()
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.one_statement_parses_to("SHOW FIELDS FROM mytable", "SHOW COLUMNS FROM mytable");
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mysql_and_generic()
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.one_statement_parses_to("SHOW COLUMNS IN mytable", "SHOW COLUMNS FROM mytable");
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mysql_and_generic()
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.one_statement_parses_to("SHOW FIELDS IN mytable", "SHOW COLUMNS FROM mytable");
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// unhandled things are truly unhandled
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match mysql_and_generic().parse_sql_statements("SHOW COLUMNS FROM mytable FROM mydb") {
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Err(_) => {}
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Ok(val) => panic!("unexpected successful parse: {:?}", val),
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}
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}
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fn mysql() -> TestedDialects {
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TestedDialects {
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dialects: vec![Box::new(MySqlDialect {})],
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}
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}
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fn mysql_and_generic() -> TestedDialects {
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TestedDialects {
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dialects: vec![Box::new(MySqlDialect {}), Box::new(GenericDialect {})],
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}
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}
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