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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
//! Test SQL syntax, specific to [sqlparser::dialect::OracleDialect].
#[cfg(test)]
use pretty_assertions::assert_eq;
use sqlparser::{
ast::{
BinaryOperator, Expr, Ident, Insert, ObjectName, Query, QuoteDelimitedString, SetExpr,
Statement, TableAliasWithoutColumns, TableObject, Value, ValueWithSpan,
},
dialect::OracleDialect,
parser::ParserError,
tokenizer::Span,
};
use test_utils::{all_dialects_where, expr_from_projection, number, TestedDialects};
mod test_utils;
fn oracle() -> TestedDialects {
TestedDialects::new(vec![Box::new(OracleDialect)])
}
/// Convenience constructor for [QuoteDelimitedstring].
fn quote_delimited_string(
start_quote: char,
value: &'static str,
end_quote: char,
) -> QuoteDelimitedString {
QuoteDelimitedString {
start_quote,
value: value.into(),
end_quote,
}
}
/// Oracle: `||` has a lower precedence than `*` and `/`
#[test]
fn muldiv_have_higher_precedence_than_strconcat() {
// ............... A .. B ...... C .. D ...........
let sql = "SELECT 3 / 5 || 'asdf' || 7 * 9 FROM dual";
let select = oracle().verified_only_select(sql);
assert_eq!(1, select.projection.len());
assert_eq!(
expr_from_projection(&select.projection[0]),
// (C || D)
&Expr::BinaryOp {
// (A || B)
left: Box::new(Expr::BinaryOp {
// A
left: Box::new(Expr::BinaryOp {
left: Box::new(Expr::Value(number("3").into())),
op: BinaryOperator::Divide,
right: Box::new(Expr::Value(number("5").into())),
}),
op: BinaryOperator::StringConcat,
right: Box::new(Expr::Value(ValueWithSpan {
value: Value::SingleQuotedString("asdf".into()),
span: Span::empty(),
})),
}),
op: BinaryOperator::StringConcat,
// D
right: Box::new(Expr::BinaryOp {
left: Box::new(Expr::Value(number("7").into())),
op: BinaryOperator::Multiply,
right: Box::new(Expr::Value(number("9").into())),
}),
}
);
}
/// Oracle: `+`, `-`, and `||` have the same precedence and parse from left-to-right
#[test]
fn plusminus_have_same_precedence_as_strconcat() {
// ................ A .. B .... C .. D ............
let sql = "SELECT 3 + 5 || '.3' || 7 - 9 FROM dual";
let select = oracle().verified_only_select(sql);
assert_eq!(1, select.projection.len());
assert_eq!(
expr_from_projection(&select.projection[0]),
// D
&Expr::BinaryOp {
left: Box::new(Expr::BinaryOp {
// B
left: Box::new(Expr::BinaryOp {
// A
left: Box::new(Expr::BinaryOp {
left: Box::new(Expr::Value(number("3").into())),
op: BinaryOperator::Plus,
right: Box::new(Expr::Value(number("5").into())),
}),
op: BinaryOperator::StringConcat,
right: Box::new(Expr::Value(ValueWithSpan {
value: Value::SingleQuotedString(".3".into()),
span: Span::empty(),
})),
}),
op: BinaryOperator::StringConcat,
right: Box::new(Expr::Value(number("7").into())),
}),
op: BinaryOperator::Minus,
right: Box::new(Expr::Value(number("9").into()))
}
);
}
#[test]
fn parse_quote_delimited_string() {
let dialect = all_dialects_where(|d| d.supports_quote_delimited_string());
let sql = "SELECT Q'.abc.', \
Q'Xab'cX', \
Q'|abc'''|', \
Q'{abc}d}', \
Q'[]abc[]', \
Q'<a'bc>', \
Q'<<<a'bc>', \
Q'('abc'('abc)', \
Q'(abc'def))', \
Q'(abc'def)))' \
FROM dual";
let select = dialect.verified_only_select(sql);
assert_eq!(10, select.projection.len());
assert_eq!(
&Expr::Value(
Value::QuoteDelimitedStringLiteral(quote_delimited_string('.', "abc", '.'))
.with_empty_span()
),
expr_from_projection(&select.projection[0])
);
assert_eq!(
&Expr::Value(
(Value::QuoteDelimitedStringLiteral(quote_delimited_string('X', "ab'c", 'X')))
.with_empty_span()
),
expr_from_projection(&select.projection[1])
);
assert_eq!(
&Expr::Value(
(Value::QuoteDelimitedStringLiteral(quote_delimited_string('|', "abc'''", '|')))
.with_empty_span()
),
expr_from_projection(&select.projection[2])
);
assert_eq!(
&Expr::Value(
(Value::QuoteDelimitedStringLiteral(quote_delimited_string('{', "abc}d", '}')))
.with_empty_span()
),
expr_from_projection(&select.projection[3])
);
assert_eq!(
&Expr::Value(
(Value::QuoteDelimitedStringLiteral(quote_delimited_string('[', "]abc[", ']')))
.with_empty_span()
),
expr_from_projection(&select.projection[4])
);
assert_eq!(
&Expr::Value(
(Value::QuoteDelimitedStringLiteral(quote_delimited_string('<', "a'bc", '>')))
.with_empty_span()
),
expr_from_projection(&select.projection[5])
);
assert_eq!(
&Expr::Value(
(Value::QuoteDelimitedStringLiteral(quote_delimited_string('<', "<<a'bc", '>')))
.with_empty_span()
),
expr_from_projection(&select.projection[6])
);
assert_eq!(
&Expr::Value(
(Value::QuoteDelimitedStringLiteral(quote_delimited_string('(', "'abc'('abc", ')')))
.with_empty_span()
),
expr_from_projection(&select.projection[7])
);
assert_eq!(
&Expr::Value(
(Value::QuoteDelimitedStringLiteral(quote_delimited_string('(', "abc'def)", ')')))
.with_empty_span()
),
expr_from_projection(&select.projection[8])
);
assert_eq!(
&Expr::Value(
(Value::QuoteDelimitedStringLiteral(quote_delimited_string('(', "abc'def))", ')')))
.with_empty_span()
),
expr_from_projection(&select.projection[9])
);
}
#[test]
fn parse_invalid_quote_delimited_strings() {
let dialect = all_dialects_where(|d| d.supports_quote_delimited_string());
// invalid quote delimiter
for q in [' ', '\t', '\r', '\n'] {
assert_eq!(
dialect.parse_sql_statements(&format!("SELECT Q'{q}abc{q}' FROM dual")),
Err(ParserError::TokenizerError(
"Invalid space, tab, newline, or EOF after 'Q'' at Line: 1, Column: 10".into()
)),
"with quote char {q:?}"
);
}
// invalid eof after quote
assert_eq!(
dialect.parse_sql_statements("SELECT Q'"),
Err(ParserError::TokenizerError(
"Invalid space, tab, newline, or EOF after 'Q'' at Line: 1, Column: 10".into()
)),
"with EOF quote char"
);
// unterminated string
assert_eq!(
dialect.parse_sql_statements("SELECT Q'|asdfa...."),
Err(ParserError::TokenizerError(
"Unterminated string literal at Line: 1, Column: 9".into()
)),
"with EOF quote char"
);
}
#[test]
fn parse_quote_delimited_string_lowercase() {
let dialect = all_dialects_where(|d| d.supports_quote_delimited_string());
let sql = "select q'!a'b'c!d!' from dual";
let select = dialect.verified_only_select_with_canonical(sql, "SELECT Q'!a'b'c!d!' FROM dual");
assert_eq!(1, select.projection.len());
assert_eq!(
&Expr::Value(
Value::QuoteDelimitedStringLiteral(quote_delimited_string('!', "a'b'c!d", '!'))
.with_empty_span()
),
expr_from_projection(&select.projection[0])
);
}
#[test]
fn parse_quote_delimited_string_but_is_a_word() {
let dialect = all_dialects_where(|d| d.supports_quote_delimited_string());
let sql = "SELECT q, quux, q.abc FROM dual q";
let select = dialect.verified_only_select(sql);
assert_eq!(3, select.projection.len());
assert_eq!(
&Expr::Identifier(Ident::with_span(Span::empty(), "q")),
expr_from_projection(&select.projection[0])
);
assert_eq!(
&Expr::Identifier(Ident::with_span(Span::empty(), "quux")),
expr_from_projection(&select.projection[1])
);
assert_eq!(
&Expr::CompoundIdentifier(vec![
Ident::with_span(Span::empty(), "q"),
Ident::with_span(Span::empty(), "abc")
]),
expr_from_projection(&select.projection[2])
);
}
#[test]
fn parse_national_quote_delimited_string() {
let dialect = all_dialects_where(|d| d.supports_quote_delimited_string());
let sql = "SELECT NQ'.abc.' FROM dual";
let select = dialect.verified_only_select(sql);
assert_eq!(1, select.projection.len());
assert_eq!(
&Expr::Value(
Value::NationalQuoteDelimitedStringLiteral(quote_delimited_string('.', "abc", '.'))
.with_empty_span()
),
expr_from_projection(&select.projection[0])
);
}
#[test]
fn parse_national_quote_delimited_string_lowercase() {
let dialect = all_dialects_where(|d| d.supports_quote_delimited_string());
for prefix in ["nq", "Nq", "nQ", "NQ"] {
let select = dialect.verified_only_select_with_canonical(
&format!("select {prefix}'!a'b'c!d!' from dual"),
"SELECT NQ'!a'b'c!d!' FROM dual",
);
assert_eq!(1, select.projection.len());
assert_eq!(
&Expr::Value(
Value::NationalQuoteDelimitedStringLiteral(quote_delimited_string(
'!', "a'b'c!d", '!'
))
.with_empty_span()
),
expr_from_projection(&select.projection[0])
);
}
}
#[test]
fn parse_national_quote_delimited_string_but_is_a_word() {
let dialect = all_dialects_where(|d| d.supports_quote_delimited_string());
let sql = "SELECT nq, nqoo, nq.abc FROM dual q";
let select = dialect.verified_only_select(sql);
assert_eq!(3, select.projection.len());
assert_eq!(
&Expr::Identifier(Ident::with_span(Span::empty(), "nq")),
expr_from_projection(&select.projection[0])
);
assert_eq!(
&Expr::Identifier(Ident::with_span(Span::empty(), "nqoo")),
expr_from_projection(&select.projection[1])
);
assert_eq!(
&Expr::CompoundIdentifier(vec![
Ident::with_span(Span::empty(), "nq"),
Ident::with_span(Span::empty(), "abc")
]),
expr_from_projection(&select.projection[2])
);
}
#[test]
fn test_optimizer_hints() {
let oracle_dialect = oracle();
// selects: all `/*+...*/` comments are collected as hints
let select = oracle_dialect.verified_only_select_with_canonical(
"SELECT /*+one two three*/ /*+four five six*/ 1 FROM dual",
"SELECT /*+one two three*/ /*+four five six*/ 1 FROM dual",
);
assert_eq!(select.optimizer_hints.len(), 2);
assert_eq!(select.optimizer_hints[0].text, "one two three");
assert_eq!(select.optimizer_hints[0].prefix, "");
assert_eq!(select.optimizer_hints[1].text, "four five six");
// regular comments are skipped, hints after them are still collected
let select = oracle_dialect.verified_only_select_with_canonical(
"SELECT /*one two three*/ /*+four five six*/ 1 FROM dual",
"SELECT /*+four five six*/ 1 FROM dual",
);
assert_eq!(select.optimizer_hints.len(), 1);
assert_eq!(select.optimizer_hints[0].text, "four five six");
let select = oracle_dialect.verified_only_select_with_canonical(
"SELECT --+ one two three /* asdf */\n 1 FROM dual",
"SELECT --+ one two three /* asdf */\n 1 FROM dual",
);
assert_eq!(select.optimizer_hints.len(), 1);
assert_eq!(
select.optimizer_hints[0].text,
" one two three /* asdf */\n"
);
assert_eq!(select.optimizer_hints[0].prefix, "");
// inserts
oracle_dialect.verified_stmt("INSERT /*+ append */ INTO t1 SELECT * FROM all_objects");
// updates
oracle_dialect.verified_stmt("UPDATE /*+ DISABLE_PARALLEL_DML */ table_name SET column1 = 1");
// deletes
oracle_dialect.verified_stmt("DELETE --+ ENABLE_PARALLEL_DML\n FROM table_name");
// merges
oracle_dialect.verified_stmt(
"MERGE /*+ CLUSTERING */ INTO people_target pt \
USING people_source ps \
ON (pt.person_id = ps.person_id) \
WHEN NOT MATCHED THEN INSERT \
(pt.person_id, pt.first_name, pt.last_name, pt.title) \
VALUES (ps.person_id, ps.first_name, ps.last_name, ps.title)",
);
// single-line prefixed hint (Oracle supports `--` without trailing whitespace)
let select = oracle_dialect.verified_only_select_with_canonical(
"SELECT --abc+ text\n 1 FROM dual",
"SELECT --abc+ text\n 1 FROM dual",
);
assert_eq!(select.optimizer_hints.len(), 1);
assert_eq!(select.optimizer_hints[0].prefix, "abc");
assert_eq!(select.optimizer_hints[0].text, " text\n");
}
#[test]
fn test_connect_by() {
let oracle_dialect = oracle();
oracle_dialect.verified_only_select(
"SELECT last_name AS \"Employee\", CONNECT_BY_ISCYCLE AS \"Cycle\", \
LEVEL, \
SYS_CONNECT_BY_PATH(last_name, '/') AS \"Path\" \
FROM employees \
WHERE level <= 3 AND department_id = 80 \
START WITH last_name = 'King' \
CONNECT BY NOCYCLE PRIOR employee_id = manager_id AND LEVEL <= 4 \
ORDER BY \"Employee\", \"Cycle\", LEVEL, \"Path\"",
);
// CONNECT_BY_ROOT
oracle_dialect.verified_only_select(
"SELECT last_name AS \"Employee\", CONNECT_BY_ROOT last_name AS \"Manager\", \
LEVEL - 1 AS \"Pathlen\", SYS_CONNECT_BY_PATH(last_name, '/') AS \"Path\" \
FROM employees \
WHERE LEVEL > 1 AND department_id = 110 \
CONNECT BY PRIOR employee_id = manager_id \
ORDER BY \"Employee\", \"Manager\", \"Pathlen\", \"Path\"",
);
}
#[test]
fn test_insert_with_table_alias() {
let oracle_dialect = oracle();
fn verify_table_name_with_alias(stmt: &Statement, exp_table_name: &str, exp_table_alias: &str) {
assert!(matches!(stmt,
Statement::Insert(Insert {
table: TableObject::TableName(table_name),
table_alias: Some(TableAliasWithoutColumns {
explicit: false,
alias: Ident {
value: table_alias,
quote_style: None,
span: _
}
}),
..
})
if table_alias == exp_table_alias
&& table_name == &ObjectName::from(vec![Ident {
value: exp_table_name.into(),
quote_style: None,
span: Span::empty(),
}])
));
}
let stmt = oracle_dialect.verified_stmt(
"INSERT INTO foo_t t \
SELECT 1, 2, 3 FROM dual",
);
verify_table_name_with_alias(&stmt, "foo_t", "t");
let stmt = oracle_dialect.verified_stmt(
"INSERT INTO foo_t asdf (a, b, c) \
SELECT 1, 2, 3 FROM dual",
);
verify_table_name_with_alias(&stmt, "foo_t", "asdf");
let stmt = oracle_dialect.verified_stmt(
"INSERT INTO foo_t t (a, b, c) \
VALUES (1, 2, 3)",
);
verify_table_name_with_alias(&stmt, "foo_t", "t");
let stmt = oracle_dialect.verified_stmt(
"INSERT INTO foo_t t \
VALUES (1, 2, 3)",
);
verify_table_name_with_alias(&stmt, "foo_t", "t");
let stmt =
oracle_dialect.verified_stmt("INSERT INTO foo_t t (t.id, t.val) SELECT 1, 2 FROM dual");
verify_table_name_with_alias(&stmt, "foo_t", "t");
if let Statement::Insert(Insert { columns, .. }) = stmt {
assert_eq!(
vec![
ObjectName::from(vec![Ident::new("t"), Ident::new("id")]),
ObjectName::from(vec![Ident::new("t"), Ident::new("val")])
],
columns
);
} else {
panic!("not an insert statement");
};
}
#[test]
fn test_insert_without_alias() {
let oracle_dialect = oracle();
// check DEFAULT
let sql = "INSERT INTO t default SELECT 'a' FROM dual";
assert_eq!(
oracle_dialect.parse_sql_statements(sql),
Err(ParserError::ParserError(
"Expected: SELECT, VALUES, or a subquery in the query body, found: default".into()
))
);
// check SELECT
let sql = "INSERT INTO t SELECT 'a' FROM dual";
let stmt = oracle_dialect.verified_stmt(sql);
assert!(matches!(
&stmt,
Statement::Insert(Insert {
table_alias: None,
source: Some(source),
..
})
if matches!(&**source, Query { body, .. } if matches!(&**body, SetExpr::Select(_)))));
// check WITH
let sql = "INSERT INTO dual WITH w AS (SELECT 1 AS y FROM dual) SELECT y FROM w";
let stmt = oracle_dialect.verified_stmt(sql);
assert!(matches!(
&stmt,
Statement::Insert(Insert {
table_alias: None,
source: Some(source),
..
})
if matches!(&**source, Query { body, .. } if matches!(&**body, SetExpr::Select(_)))));
// check VALUES
let sql = "INSERT INTO t VALUES (1)";
let stmt = oracle_dialect.verified_stmt(sql);
assert!(matches!(
stmt,
Statement::Insert(Insert {
table_alias: None,
source: Some(source),
..
})
if matches!(&*source, Query { body, .. } if matches!(&**body, SetExpr::Values(_)))
));
}
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