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Upgrade sqlparser-rs to 0.51.0, support new interval logic from sqlparse-rs #12222

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merged 9 commits into from
Sep 15, 2024
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Merged

Upgrade sqlparser-rs to 0.51.0, support new interval logic from sqlparse-rs #12222

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179be76
support new interval logic from sqlparse-rs
samuelcolvin Aug 28, 2024
edf318b
uprev sqlparser-rs branch
samuelcolvin Aug 29, 2024
ab88318
Merge branch 'main' into sqlparse-interval
samuelcolvin Sep 12, 2024
6bba073
use sqlparser 51
samuelcolvin Sep 12, 2024
268d478
better extract logic and interval testing
samuelcolvin Sep 12, 2024
8fe6a2f
revert unnecessary changes
samuelcolvin Sep 12, 2024
5ad18e0
revert unnecessary changes, more
samuelcolvin Sep 12, 2024
e7ed21e
cleanup
samuelcolvin Sep 12, 2024
ce3425a
fix last failing test :fingerscrossed:
samuelcolvin Sep 12, 2024
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3 changes: 2 additions & 1 deletion Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -134,7 +134,8 @@ rand = "0.8"
regex = "1.8"
rstest = "0.22.0"
serde_json = "1"
sqlparser = { version = "0.50.0", features = ["visitor"] }
#sqlparser = { version = "0.50.0", features = ["visitor"] }
sqlparser = { git = "https://github.com/samuelcolvin/sqlparser-rs", rev = "31a19f7", features = ["visitor"] }
tempfile = "3"
thiserror = "1.0.44"
tokio = { version = "1.36", features = ["macros", "rt", "sync"] }
Expand Down
6 changes: 2 additions & 4 deletions datafusion-cli/Cargo.lock
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4 changes: 1 addition & 3 deletions datafusion/sql/src/expr/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -197,9 +197,7 @@ impl<'a, S: ContextProvider> SqlToRel<'a, S> {
}

SQLExpr::Array(arr) => self.sql_array_literal(arr.elem, schema),
SQLExpr::Interval(interval) => {
self.sql_interval_to_expr(false, interval, schema, planner_context)
}
SQLExpr::Interval(interval) => self.sql_interval_to_expr(false, interval),
SQLExpr::Identifier(id) => {
self.sql_identifier_to_expr(id, schema, planner_context)
}
Expand Down
2 changes: 1 addition & 1 deletion datafusion/sql/src/expr/unary_op.rs
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Expand Up @@ -43,7 +43,7 @@ impl<'a, S: ContextProvider> SqlToRel<'a, S> {
self.parse_sql_number(&n, true)
}
SQLExpr::Interval(interval) => {
self.sql_interval_to_expr(true, interval, schema, planner_context)
self.sql_interval_to_expr(true, interval)
}
// not a literal, apply negative operator on expression
_ => Ok(Expr::Negative(Box::new(self.sql_expr_to_logical_expr(
Expand Down
195 changes: 72 additions & 123 deletions datafusion/sql/src/expr/value.rs
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Expand Up @@ -26,7 +26,7 @@ use datafusion_expr::expr::{BinaryExpr, Placeholder};
use datafusion_expr::planner::PlannerResult;
use datafusion_expr::{lit, Expr, Operator};
use log::debug;
use sqlparser::ast::{BinaryOperator, Expr as SQLExpr, Interval, Value};
use sqlparser::ast::{BinaryOperator, Expr as SQLExpr, Interval, UnaryOperator, Value};
use sqlparser::parser::ParserError::ParserError;
use std::borrow::Cow;

Expand Down Expand Up @@ -168,12 +168,11 @@ impl<'a, S: ContextProvider> SqlToRel<'a, S> {

/// Convert a SQL interval expression to a DataFusion logical plan
/// expression
#[allow(clippy::only_used_in_recursion)]
pub(super) fn sql_interval_to_expr(
&self,
negative: bool,
interval: Interval,
schema: &DFSchema,
planner_context: &mut PlannerContext,
) -> Result<Expr> {
if interval.leading_precision.is_some() {
return not_impl_err!(
Expand All @@ -196,127 +195,42 @@ impl<'a, S: ContextProvider> SqlToRel<'a, S> {
);
}

// Only handle string exprs for now
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It is great to remove all this stuff from the sql planner (as it is now in the parser)

let value = match *interval.value {
SQLExpr::Value(
Value::SingleQuotedString(s) | Value::DoubleQuotedString(s),
) => {
if negative {
format!("-{s}")
} else {
s
}
}
// Support expressions like `interval '1 month' + date/timestamp`.
// Such expressions are parsed like this by sqlparser-rs
//
// Interval
// BinaryOp
// Value(StringLiteral)
// Cast
// Value(StringLiteral)
//
// This code rewrites them to the following:
//
// BinaryOp
// Interval
// Value(StringLiteral)
// Cast
// Value(StringLiteral)
SQLExpr::BinaryOp { left, op, right } => {
let df_op = match op {
BinaryOperator::Plus => Operator::Plus,
BinaryOperator::Minus => Operator::Minus,
BinaryOperator::Eq => Operator::Eq,
BinaryOperator::NotEq => Operator::NotEq,
BinaryOperator::Gt => Operator::Gt,
BinaryOperator::GtEq => Operator::GtEq,
BinaryOperator::Lt => Operator::Lt,
BinaryOperator::LtEq => Operator::LtEq,
_ => {
return not_impl_err!("Unsupported interval operator: {op:?}");
}
};
match (
interval.leading_field.as_ref(),
left.as_ref(),
right.as_ref(),
) {
(_, _, SQLExpr::Value(_)) => {
let left_expr = self.sql_interval_to_expr(
negative,
Interval {
value: left,
leading_field: interval.leading_field.clone(),
leading_precision: None,
last_field: None,
fractional_seconds_precision: None,
},
schema,
planner_context,
)?;
let right_expr = self.sql_interval_to_expr(
false,
Interval {
value: right,
leading_field: interval.leading_field,
leading_precision: None,
last_field: None,
fractional_seconds_precision: None,
},
schema,
planner_context,
)?;
return Ok(Expr::BinaryExpr(BinaryExpr::new(
Box::new(left_expr),
df_op,
Box::new(right_expr),
)));
}
// In this case, the left node is part of the interval
// expr and the right node is an independent expr.
//
// Leading field is not supported when the right operand
// is not a value.
(None, _, _) => {
let left_expr = self.sql_interval_to_expr(
negative,
Interval {
value: left,
leading_field: None,
leading_precision: None,
last_field: None,
fractional_seconds_precision: None,
},
schema,
planner_context,
)?;
let right_expr = self.sql_expr_to_logical_expr(
*right,
schema,
planner_context,
)?;
return Ok(Expr::BinaryExpr(BinaryExpr::new(
Box::new(left_expr),
df_op,
Box::new(right_expr),
)));
}
_ => {
let value = SQLExpr::BinaryOp { left, op, right };
return not_impl_err!(
"Unsupported interval argument. Expected string literal, got: {value:?}"
);
}
if let SQLExpr::BinaryOp { left, op, right } = *interval.value {
let df_op = match op {
BinaryOperator::Plus => Operator::Plus,
BinaryOperator::Minus => Operator::Minus,
_ => {
return not_impl_err!("Unsupported interval operator: {op:?}");
}
}
_ => {
return not_impl_err!(
"Unsupported interval argument. Expected string literal, got: {:?}",
interval.value
);
}
};
};
let left_expr = self.sql_interval_to_expr(
negative,
Interval {
value: left,
leading_field: interval.leading_field.clone(),
leading_precision: None,
last_field: None,
fractional_seconds_precision: None,
},
)?;
let right_expr = self.sql_interval_to_expr(
false,
Interval {
value: right,
leading_field: interval.leading_field,
leading_precision: None,
last_field: None,
fractional_seconds_precision: None,
},
)?;
return Ok(Expr::BinaryExpr(BinaryExpr::new(
Box::new(left_expr),
df_op,
Box::new(right_expr),
)));
}

let value = interval_literal(*interval.value, negative)?;

let value = if has_units(&value) {
// If the interval already contains a unit
Expand All @@ -343,6 +257,41 @@ impl<'a, S: ContextProvider> SqlToRel<'a, S> {
}
}

fn interval_literal(interval_value: SQLExpr, negative: bool) -> Result<String> {
let s = match interval_value {
SQLExpr::Value(Value::SingleQuotedString(s) | Value::DoubleQuotedString(s)) => s,
SQLExpr::Value(Value::Number(ref v, long)) => {
if long {
return not_impl_err!(
"Unsupported interval argument. Long number not supported: {interval_value:?}"
);
} else {
v.to_string()
}
}
SQLExpr::UnaryOp { op, expr } => {
let negative = match op {
UnaryOperator::Minus => !negative,
UnaryOperator::Plus => negative,
_ => {
return not_impl_err!(
"Unsupported SQL unary operator in interval {op:?}"
);
}
};
interval_literal(*expr, negative)?
}
_ => {
return not_impl_err!("Unsupported interval argument. Expected string literal or number, got: {interval_value:?}");
}
};
if negative {
Ok(format!("-{s}"))
} else {
Ok(s)
}
}

// TODO make interval parsing better in arrow-rs / expose `IntervalType`
fn has_units(val: &str) -> bool {
let val = val.to_lowercase();
Expand Down
44 changes: 35 additions & 9 deletions datafusion/sql/tests/cases/plan_to_sql.rs
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Expand Up @@ -30,7 +30,7 @@ use datafusion_sql::unparser::dialect::{
use datafusion_sql::unparser::{expr_to_sql, plan_to_sql, Unparser};

use datafusion_functions::core::planner::CoreFunctionPlanner;
use sqlparser::dialect::{Dialect, GenericDialect, MySqlDialect};
use sqlparser::dialect::{Dialect, GenericDialect, MySqlDialect, PostgreSqlDialect};
use sqlparser::parser::Parser;

use crate::common::{MockContextProvider, MockSessionState};
Expand Down Expand Up @@ -481,11 +481,17 @@ fn test_table_references_in_plan_to_sql() {
assert_eq!(format!("{}", sql), expected_sql)
}

test("catalog.schema.table", "SELECT catalog.\"schema\".\"table\".id, catalog.\"schema\".\"table\".\"value\" FROM catalog.\"schema\".\"table\"");
test("schema.table", "SELECT \"schema\".\"table\".id, \"schema\".\"table\".\"value\" FROM \"schema\".\"table\"");
test(
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this is a driveby (unrelated) cleanup, right? (this is fine I am just verifying my understanding)

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It was necessary to get tests to pass, I assume it came from some other change in sqlparser, I didn't look too hard.

But it's not just cosmetic.

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this mostly changes catalog to "catalog"
a driveby is usage or raw literals (which is a nice thing on its own)

"catalog.schema.table",
r#"SELECT "catalog"."schema"."table".id, "catalog"."schema"."table"."value" FROM "catalog"."schema"."table""#,
);
test(
"schema.table",
r#"SELECT "schema"."table".id, "schema"."table"."value" FROM "schema"."table""#,
);
test(
"table",
"SELECT \"table\".id, \"table\".\"value\" FROM \"table\"",
r#"SELECT "table".id, "table"."value" FROM "table""#,
);
}

Expand All @@ -507,10 +513,10 @@ fn test_table_scan_with_no_projection_in_plan_to_sql() {

test(
"catalog.schema.table",
"SELECT * FROM catalog.\"schema\".\"table\"",
r#"SELECT * FROM "catalog"."schema"."table""#,
);
test("schema.table", "SELECT * FROM \"schema\".\"table\"");
test("table", "SELECT * FROM \"table\"");
test("schema.table", r#"SELECT * FROM "schema"."table""#);
test("table", r#"SELECT * FROM "table""#);
}

#[test]
Expand Down Expand Up @@ -590,8 +596,8 @@ fn test_pretty_roundtrip() -> Result<()> {
Ok(())
}

fn sql_round_trip(query: &str, expect: &str) {
let statement = Parser::new(&GenericDialect {})
fn sql_round_trip(query: &str, expect: &str, dialect: &dyn Dialect) {
let statement = Parser::new(dialect)
.try_with_sql(query)
.unwrap()
.parse_statement()
Expand All @@ -609,16 +615,36 @@ fn sql_round_trip(query: &str, expect: &str) {

#[test]
fn test_interval_lhs_eq() {
sql_round_trip(
"select interval 2 second = interval 2 second",
"SELECT (INTERVAL '0 YEARS 0 MONS 0 DAYS 0 HOURS 0 MINS 2.000000000 SECS' = INTERVAL '0 YEARS 0 MONS 0 DAYS 0 HOURS 0 MINS 2.000000000 SECS')",
&GenericDialect {}
);
}

#[test]
fn test_interval_lhs_eq_pg() {
sql_round_trip(
"select interval '2 seconds' = interval '2 seconds'",
"SELECT (INTERVAL '0 YEARS 0 MONS 0 DAYS 0 HOURS 0 MINS 2.000000000 SECS' = INTERVAL '0 YEARS 0 MONS 0 DAYS 0 HOURS 0 MINS 2.000000000 SECS')",
&PostgreSqlDialect {}
);
}

#[test]
fn test_interval_lhs_lt() {
sql_round_trip(
"select interval 2 second < interval 2 second",
"SELECT (INTERVAL '0 YEARS 0 MONS 0 DAYS 0 HOURS 0 MINS 2.000000000 SECS' < INTERVAL '0 YEARS 0 MONS 0 DAYS 0 HOURS 0 MINS 2.000000000 SECS')",
&GenericDialect {}
);
}

#[test]
fn test_interval_lhs_lt_pg() {
sql_round_trip(
"select interval '2 seconds' < interval '2 seconds'",
"SELECT (INTERVAL '0 YEARS 0 MONS 0 DAYS 0 HOURS 0 MINS 2.000000000 SECS' < INTERVAL '0 YEARS 0 MONS 0 DAYS 0 HOURS 0 MINS 2.000000000 SECS')",
&PostgreSqlDialect {}
);
}
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