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Allow plain JOIN without turning it into INNER (#1692)

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Michael Victor Zink 2025-01-29 22:15:57 -08:00 • committed by GitHub
parent 784605c913
commit 252fdbab82
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8 changed files with 42 additions and 16 deletions
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31
tests/sqlparser_common.rs
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@ -6457,7 +6457,7 @@ fn parse_implicit_join() {
joins: vec![Join {
relation: table_from_name(ObjectName::from(vec!["t1b".into()])),
global: false,
join_operator: JoinOperator::Inner(JoinConstraint::Natural),
join_operator: JoinOperator::Join(JoinConstraint::Natural),
}],
},
TableWithJoins {
@ -6465,7 +6465,7 @@ fn parse_implicit_join() {
joins: vec![Join {
relation: table_from_name(ObjectName::from(vec!["t2b".into()])),
global: false,
join_operator: JoinOperator::Inner(JoinConstraint::Natural),
join_operator: JoinOperator::Join(JoinConstraint::Natural),
}],
},
],
@ -6523,7 +6523,7 @@ fn parse_joins_on() {
"t2",
table_alias("foo"),
false,
JoinOperator::Inner,
JoinOperator::Join,
)]
);
one_statement_parses_to(
@ -6533,7 +6533,7 @@ fn parse_joins_on() {
// Test parsing of different join operators
assert_eq!(
only(&verified_only_select("SELECT * FROM t1 JOIN t2 ON c1 = c2").from).joins,
vec![join_with_constraint("t2", None, false, JoinOperator::Inner)]
vec![join_with_constraint("t2", None, false, JoinOperator::Join)]
);
assert_eq!(
only(&verified_only_select("SELECT * FROM t1 LEFT JOIN t2 ON c1 = c2").from).joins,
@ -6650,7 +6650,7 @@ fn parse_joins_using() {
vec![join_with_constraint(
"t2",
table_alias("foo"),
JoinOperator::Inner,
JoinOperator::Join,
)]
);
one_statement_parses_to(
@ -6660,6 +6660,10 @@ fn parse_joins_using() {
// Test parsing of different join operators
assert_eq!(
only(&verified_only_select("SELECT * FROM t1 JOIN t2 USING(c1)").from).joins,
vec![join_with_constraint("t2", None, JoinOperator::Join)]
);
assert_eq!(
only(&verified_only_select("SELECT * FROM t1 INNER JOIN t2 USING(c1)").from).joins,
vec![join_with_constraint("t2", None, JoinOperator::Inner)]
);
assert_eq!(
@ -6722,9 +6726,14 @@ fn parse_natural_join() {
}
}
// if not specified, inner join as default
// unspecified join
assert_eq!(
only(&verified_only_select("SELECT * FROM t1 NATURAL JOIN t2").from).joins,
vec![natural_join(JoinOperator::Join, None)]
);
// inner join explicitly
assert_eq!(
only(&verified_only_select("SELECT * FROM t1 NATURAL INNER JOIN t2").from).joins,
vec![natural_join(JoinOperator::Inner, None)]
);
// left join explicitly
@ -6748,7 +6757,7 @@ fn parse_natural_join() {
// natural join another table with alias
assert_eq!(
only(&verified_only_select("SELECT * FROM t1 NATURAL JOIN t2 AS t3").from).joins,
vec![natural_join(JoinOperator::Inner, table_alias("t3"))]
vec![natural_join(JoinOperator::Join, table_alias("t3"))]
);
let sql = "SELECT * FROM t1 natural";
@ -6816,8 +6825,12 @@ fn parse_join_nesting() {
#[test]
fn parse_join_syntax_variants() {
one_statement_parses_to(
"SELECT c1 FROM t1 INNER JOIN t2 USING(c1)",
"SELECT c1 FROM t1 JOIN t2 USING(c1)",
"SELECT c1 FROM t1 JOIN t2 USING(c1)",
);
one_statement_parses_to(
"SELECT c1 FROM t1 INNER JOIN t2 USING(c1)",
"SELECT c1 FROM t1 INNER JOIN t2 USING(c1)",
);
one_statement_parses_to(
"SELECT c1 FROM t1 LEFT OUTER JOIN t2 USING(c1)",
@ -6981,7 +6994,7 @@ fn parse_derived_tables() {
joins: vec![Join {
relation: table_from_name(ObjectName::from(vec!["t2".into()])),
global: false,
join_operator: JoinOperator::Inner(JoinConstraint::Natural),
join_operator: JoinOperator::Join(JoinConstraint::Natural),
}],
}),
alias: None,