sql/
parser.rs

1// Copyright 2023 Greptime Team
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15use std::str::FromStr;
16
17use chrono::{DateTime, Utc};
18use snafu::{OptionExt, ResultExt};
19use sqlparser::ast::{Ident, Query, Value};
20use sqlparser::dialect::Dialect;
21use sqlparser::keywords::Keyword;
22use sqlparser::parser::{Parser, ParserError, ParserOptions};
23use sqlparser::tokenizer::{Token, TokenWithSpan};
24
25use crate::ast::{Expr, ObjectName};
26use crate::error::{self, InvalidSqlSnafu, Result, SyntaxSnafu};
27use crate::parsers::tql_parser;
28use crate::statements::kill::Kill;
29use crate::statements::statement::Statement;
30use crate::statements::transform_statements;
31
32pub const FLOW: &str = "FLOW";
33
34/// SQL Parser options.
35#[derive(Clone, Debug, Default)]
36pub struct ParseOptions {
37    /// If set, TQL parameter expressions containing `now()` will be evaluated
38    /// against this scheduled time instead of wall-clock time.
39    pub scheduled_time: Option<DateTime<Utc>>,
40}
41
42/// GrepTime SQL parser context, a simple wrapper for Datafusion SQL parser.
43pub struct ParserContext<'a> {
44    pub(crate) parser: Parser<'a>,
45    pub(crate) sql: &'a str,
46    /// Optional scheduled time for `now()` evaluation in TQL parameters.
47    pub(crate) scheduled_time: Option<DateTime<Utc>>,
48}
49
50impl ParserContext<'_> {
51    /// Construct a new ParserContext.
52    pub fn new<'a>(dialect: &'a dyn Dialect, sql: &'a str) -> Result<ParserContext<'a>> {
53        let parser = Parser::new(dialect)
54            .with_options(ParserOptions::new().with_trailing_commas(true))
55            .try_with_sql(sql)
56            .context(SyntaxSnafu)?;
57
58        Ok(ParserContext {
59            parser,
60            sql,
61            scheduled_time: None,
62        })
63    }
64
65    /// Parses parser context to Query.
66    pub fn parser_query(&mut self) -> Result<Box<Query>> {
67        self.parser.parse_query().context(SyntaxSnafu)
68    }
69
70    /// Parses SQL with given dialect
71    pub fn create_with_dialect(
72        sql: &str,
73        dialect: &dyn Dialect,
74        opts: ParseOptions,
75    ) -> Result<Vec<Statement>> {
76        let mut stmts: Vec<Statement> = Vec::new();
77
78        let mut parser_ctx = ParserContext::new(dialect, sql)?;
79        parser_ctx.scheduled_time = opts.scheduled_time;
80
81        let mut expecting_statement_delimiter = false;
82        loop {
83            // ignore empty statements (between successive statement delimiters)
84            while parser_ctx.parser.consume_token(&Token::SemiColon) {
85                expecting_statement_delimiter = false;
86            }
87
88            if parser_ctx.parser.peek_token() == Token::EOF {
89                break;
90            }
91            if expecting_statement_delimiter {
92                return parser_ctx.unsupported(parser_ctx.peek_token_as_string());
93            }
94
95            let statement = parser_ctx.parse_statement()?;
96            stmts.push(statement);
97            expecting_statement_delimiter = true;
98        }
99
100        transform_statements(&mut stmts)?;
101
102        Ok(stmts)
103    }
104
105    pub fn parse_table_name(sql: &str, dialect: &dyn Dialect) -> Result<ObjectName> {
106        let parser = Parser::new(dialect)
107            .with_options(ParserOptions::new().with_trailing_commas(true))
108            .try_with_sql(sql)
109            .context(SyntaxSnafu)?;
110        ParserContext {
111            parser,
112            sql,
113            scheduled_time: None,
114        }
115        .intern_parse_table_name()
116    }
117
118    pub(crate) fn intern_parse_table_name(&mut self) -> Result<ObjectName> {
119        let raw_table_name =
120            self.parser
121                .parse_object_name(false)
122                .context(error::UnexpectedSnafu {
123                    expected: "a table name",
124                    actual: self.parser.peek_token().to_string(),
125                })?;
126        Self::canonicalize_object_name(raw_table_name)
127    }
128
129    pub fn parse_function(sql: &str, dialect: &dyn Dialect) -> Result<Expr> {
130        let mut parser = Parser::new(dialect)
131            .with_options(ParserOptions::new().with_trailing_commas(true))
132            .try_with_sql(sql)
133            .context(SyntaxSnafu)?;
134
135        let function_name = parser.parse_identifier().context(SyntaxSnafu)?;
136        parser
137            .parse_function(vec![function_name].into())
138            .context(SyntaxSnafu)
139    }
140
141    /// Parses parser context to a set of statements.
142    pub fn parse_statement(&mut self) -> Result<Statement> {
143        match self.parser.peek_token().token {
144            Token::Word(w) => match w.keyword {
145                Keyword::CREATE => {
146                    let _ = self.parser.next_token();
147                    self.parse_create()
148                }
149
150                Keyword::EXPLAIN => {
151                    let _ = self.parser.next_token();
152                    self.parse_explain()
153                }
154
155                Keyword::SHOW => {
156                    let _ = self.parser.next_token();
157                    self.parse_show()
158                }
159
160                Keyword::DELETE => self.parse_delete(),
161
162                Keyword::DESCRIBE | Keyword::DESC => {
163                    let _ = self.parser.next_token();
164                    self.parse_describe()
165                }
166
167                Keyword::INSERT => self.parse_insert(),
168
169                Keyword::REPLACE => self.parse_replace(),
170
171                Keyword::SELECT | Keyword::VALUES => self.parse_query(),
172
173                Keyword::WITH => self.parse_with_tql(),
174
175                Keyword::ALTER => self.parse_alter(),
176
177                Keyword::DROP => self.parse_drop(),
178
179                Keyword::COPY => self.parse_copy(),
180
181                Keyword::TRUNCATE => self.parse_truncate(),
182
183                Keyword::COMMENT => self.parse_comment(),
184
185                Keyword::SET => self.parse_set_variables(),
186
187                Keyword::ADMIN => self.parse_admin_command(),
188
189                Keyword::NoKeyword
190                    if w.quote_style.is_none() && w.value.to_uppercase() == tql_parser::TQL =>
191                {
192                    self.parse_tql(false)
193                }
194
195                Keyword::NoKeyword
196                    if w.quote_style.is_none() && w.value.eq_ignore_ascii_case("UNDROP") =>
197                {
198                    self.parse_undrop_table()
199                }
200
201                Keyword::DECLARE => self.parse_declare_cursor(),
202
203                Keyword::FETCH => self.parse_fetch_cursor(),
204
205                Keyword::CLOSE => self.parse_close_cursor(),
206
207                Keyword::USE => {
208                    let _ = self.parser.next_token();
209
210                    let database_name = self.parser.parse_identifier().with_context(|_| {
211                        error::UnexpectedSnafu {
212                            expected: "a database name",
213                            actual: self.peek_token_as_string(),
214                        }
215                    })?;
216                    Ok(Statement::Use(
217                        Self::canonicalize_identifier(database_name).value,
218                    ))
219                }
220
221                Keyword::KILL => {
222                    let _ = self.parser.next_token();
223                    let kill = if self.parser.parse_keyword(Keyword::QUERY) {
224                        // MySQL KILL QUERY <connection id> statements
225                        let connection_id_exp =
226                            self.parser.parse_number_value().with_context(|_| {
227                                error::UnexpectedSnafu {
228                                    expected: "MySQL numeric connection id",
229                                    actual: self.peek_token_as_string(),
230                                }
231                            })?;
232                        let Value::Number(s, _) = connection_id_exp.value else {
233                            return error::UnexpectedTokenSnafu {
234                                expected: "MySQL numeric connection id",
235                                actual: connection_id_exp.to_string(),
236                            }
237                            .fail();
238                        };
239
240                        let connection_id = u32::from_str(&s).map_err(|_| {
241                            error::UnexpectedTokenSnafu {
242                                expected: "MySQL numeric connection id",
243                                actual: s,
244                            }
245                            .build()
246                        })?;
247                        Kill::ConnectionId(connection_id)
248                    } else {
249                        let process_id_ident =
250                            self.parser.parse_literal_string().with_context(|_| {
251                                error::UnexpectedSnafu {
252                                    expected: "process id string literal",
253                                    actual: self.peek_token_as_string(),
254                                }
255                            })?;
256                        Kill::ProcessId(process_id_ident)
257                    };
258
259                    Ok(Statement::Kill(kill))
260                }
261
262                _ => self.unsupported(self.peek_token_as_string()),
263            },
264            Token::LParen => self.parse_query(),
265            unexpected => self.unsupported(unexpected.to_string()),
266        }
267    }
268
269    /// Parses MySQL style 'PREPARE stmt_name FROM stmt' into a (stmt_name, stmt) tuple.
270    pub fn parse_mysql_prepare_stmt(sql: &str, dialect: &dyn Dialect) -> Result<(String, String)> {
271        ParserContext::new(dialect, sql)?.parse_mysql_prepare()
272    }
273
274    /// Parses MySQL style 'EXECUTE stmt_name USING param_list' into a stmt_name string and a list of parameters.
275    pub fn parse_mysql_execute_stmt(
276        sql: &str,
277        dialect: &dyn Dialect,
278    ) -> Result<(String, Vec<Expr>)> {
279        ParserContext::new(dialect, sql)?.parse_mysql_execute()
280    }
281
282    /// Parses MySQL style 'DEALLOCATE stmt_name' into a stmt_name string.
283    pub fn parse_mysql_deallocate_stmt(sql: &str, dialect: &dyn Dialect) -> Result<String> {
284        ParserContext::new(dialect, sql)?.parse_deallocate()
285    }
286
287    /// Raises an "unsupported statement" error.
288    pub fn unsupported<T>(&self, keyword: String) -> Result<T> {
289        error::UnsupportedSnafu { keyword }.fail()
290    }
291
292    // Report unexpected token
293    pub(crate) fn expected<T>(&self, expected: &str, found: TokenWithSpan) -> Result<T> {
294        Err(ParserError::ParserError(format!(
295            "Expected {expected}, found: {found}",
296        )))
297        .context(SyntaxSnafu)
298    }
299
300    pub fn matches_keyword(&mut self, expected: Keyword) -> bool {
301        match self.parser.peek_token().token {
302            Token::Word(w) => w.keyword == expected,
303            _ => false,
304        }
305    }
306
307    pub fn consume_token(&mut self, expected: &str) -> bool {
308        if self.peek_token_as_string().to_uppercase() == *expected.to_uppercase() {
309            let _ = self.parser.next_token();
310            true
311        } else {
312            false
313        }
314    }
315
316    #[inline]
317    pub(crate) fn peek_token_as_string(&self) -> String {
318        self.parser.peek_token().to_string()
319    }
320
321    /// Canonicalize the identifier to lowercase if it's not quoted.
322    pub fn canonicalize_identifier(ident: Ident) -> Ident {
323        if ident.quote_style.is_some() {
324            ident
325        } else {
326            Ident::new(ident.value.to_lowercase())
327        }
328    }
329
330    /// Like [canonicalize_identifier] but for [ObjectName].
331    pub(crate) fn canonicalize_object_name(object_name: ObjectName) -> Result<ObjectName> {
332        object_name
333            .0
334            .into_iter()
335            .map(|x| {
336                x.as_ident()
337                    .cloned()
338                    .map(Self::canonicalize_identifier)
339                    .with_context(|| InvalidSqlSnafu {
340                        msg: format!("not an ident: '{x}'"),
341                    })
342            })
343            .collect::<Result<Vec<_>>>()
344            .map(Into::into)
345    }
346
347    /// Simply a shortcut for sqlparser's same name method `parse_object_name`,
348    /// but with constant argument "false".
349    /// Because the argument is always "false" for us (it's introduced by BigQuery),
350    /// we don't want to write it again and again.
351    pub(crate) fn parse_object_name(&mut self) -> std::result::Result<ObjectName, ParserError> {
352        self.parser.parse_object_name(false)
353    }
354}
355
356#[cfg(test)]
357mod tests {
358
359    use datatypes::prelude::ConcreteDataType;
360    use sqlparser::dialect::MySqlDialect;
361
362    use super::*;
363    use crate::dialect::GreptimeDbDialect;
364    use crate::statements::create::CreateTable;
365    use crate::statements::sql_data_type_to_concrete_data_type;
366
367    fn test_timestamp_precision(sql: &str, expected_type: ConcreteDataType) {
368        match ParserContext::create_with_dialect(
369            sql,
370            &GreptimeDbDialect {},
371            ParseOptions::default(),
372        )
373        .unwrap()
374        .pop()
375        .unwrap()
376        {
377            Statement::CreateTable(CreateTable { columns, .. }) => {
378                let ts_col = columns.first().unwrap();
379                assert_eq!(
380                    expected_type,
381                    sql_data_type_to_concrete_data_type(ts_col.data_type()).unwrap()
382                );
383            }
384            _ => unreachable!(),
385        }
386    }
387
388    #[test]
389    pub fn test_create_table_with_precision() {
390        test_timestamp_precision(
391            "create table demo (ts timestamp time index, cnt int);",
392            ConcreteDataType::timestamp_millisecond_datatype(),
393        );
394        test_timestamp_precision(
395            "create table demo (ts timestamp(0) time index, cnt int);",
396            ConcreteDataType::timestamp_second_datatype(),
397        );
398        test_timestamp_precision(
399            "create table demo (ts timestamp(3) time index, cnt int);",
400            ConcreteDataType::timestamp_millisecond_datatype(),
401        );
402        test_timestamp_precision(
403            "create table demo (ts timestamp(6) time index, cnt int);",
404            ConcreteDataType::timestamp_microsecond_datatype(),
405        );
406        test_timestamp_precision(
407            "create table demo (ts timestamp(9) time index, cnt int);",
408            ConcreteDataType::timestamp_nanosecond_datatype(),
409        );
410    }
411
412    #[test]
413    #[should_panic]
414    pub fn test_create_table_with_invalid_precision() {
415        test_timestamp_precision(
416            "create table demo (ts timestamp(1) time index, cnt int);",
417            ConcreteDataType::timestamp_millisecond_datatype(),
418        );
419    }
420
421    #[test]
422    pub fn test_parse_table_name() {
423        let table_name = "a.b.c";
424
425        let object_name =
426            ParserContext::parse_table_name(table_name, &GreptimeDbDialect {}).unwrap();
427
428        assert_eq!(object_name.0.len(), 3);
429        assert_eq!(object_name.to_string(), table_name);
430
431        let table_name = "a.b";
432
433        let object_name =
434            ParserContext::parse_table_name(table_name, &GreptimeDbDialect {}).unwrap();
435
436        assert_eq!(object_name.0.len(), 2);
437        assert_eq!(object_name.to_string(), table_name);
438
439        let table_name = "Test.\"public-test\"";
440
441        let object_name =
442            ParserContext::parse_table_name(table_name, &GreptimeDbDialect {}).unwrap();
443
444        assert_eq!(object_name.0.len(), 2);
445        assert_eq!(object_name.to_string(), table_name.to_ascii_lowercase());
446
447        let table_name = "HelloWorld";
448
449        let object_name =
450            ParserContext::parse_table_name(table_name, &GreptimeDbDialect {}).unwrap();
451
452        assert_eq!(object_name.0.len(), 1);
453        assert_eq!(object_name.to_string(), table_name.to_ascii_lowercase());
454    }
455
456    #[test]
457    pub fn test_parse_mysql_prepare_stmt() {
458        let sql = "PREPARE stmt1 FROM 'SELECT * FROM t1 WHERE id = ?';";
459        let (stmt_name, stmt) =
460            ParserContext::parse_mysql_prepare_stmt(sql, &MySqlDialect {}).unwrap();
461        assert_eq!(stmt_name, "stmt1");
462        assert_eq!(stmt, "SELECT * FROM t1 WHERE id = ?");
463
464        let sql = "PREPARE stmt2 FROM \"SELECT * FROM t1 WHERE id = ?\"";
465        let (stmt_name, stmt) =
466            ParserContext::parse_mysql_prepare_stmt(sql, &MySqlDialect {}).unwrap();
467        assert_eq!(stmt_name, "stmt2");
468        assert_eq!(stmt, "SELECT * FROM t1 WHERE id = ?");
469    }
470
471    #[test]
472    pub fn test_parse_mysql_execute_stmt() {
473        let sql = "EXECUTE stmt1 USING 1, 'hello';";
474        let (stmt_name, params) =
475            ParserContext::parse_mysql_execute_stmt(sql, &GreptimeDbDialect {}).unwrap();
476        assert_eq!(stmt_name, "stmt1");
477        assert_eq!(params.len(), 2);
478        assert_eq!(params[0].to_string(), "1");
479        assert_eq!(params[1].to_string(), "'hello'");
480
481        let sql = "EXECUTE stmt2;";
482        let (stmt_name, params) =
483            ParserContext::parse_mysql_execute_stmt(sql, &GreptimeDbDialect {}).unwrap();
484        assert_eq!(stmt_name, "stmt2");
485        assert_eq!(params.len(), 0);
486
487        let sql = "EXECUTE stmt3 USING 231, 'hello', \"2003-03-1\", NULL, ;";
488        let (stmt_name, params) =
489            ParserContext::parse_mysql_execute_stmt(sql, &GreptimeDbDialect {}).unwrap();
490        assert_eq!(stmt_name, "stmt3");
491        assert_eq!(params.len(), 4);
492        assert_eq!(params[0].to_string(), "231");
493        assert_eq!(params[1].to_string(), "'hello'");
494        assert_eq!(params[2].to_string(), "\"2003-03-1\"");
495        assert_eq!(params[3].to_string(), "NULL");
496    }
497
498    #[test]
499    pub fn test_parse_mysql_deallocate_stmt() {
500        let sql = "DEALLOCATE stmt1;";
501        let stmt_name = ParserContext::parse_mysql_deallocate_stmt(sql, &MySqlDialect {}).unwrap();
502        assert_eq!(stmt_name, "stmt1");
503
504        let sql = "DEALLOCATE stmt2";
505        let stmt_name = ParserContext::parse_mysql_deallocate_stmt(sql, &MySqlDialect {}).unwrap();
506        assert_eq!(stmt_name, "stmt2");
507    }
508
509    #[test]
510    pub fn test_parse_kill_query_statement() {
511        use crate::statements::kill::Kill;
512
513        // Test MySQL-style KILL QUERY with connection ID
514        let sql = "KILL QUERY 123";
515        let statements =
516            ParserContext::create_with_dialect(sql, &GreptimeDbDialect {}, ParseOptions::default())
517                .unwrap();
518
519        assert_eq!(statements.len(), 1);
520        match &statements[0] {
521            Statement::Kill(Kill::ConnectionId(connection_id)) => {
522                assert_eq!(*connection_id, 123);
523            }
524            _ => panic!("Expected Kill::ConnectionId statement"),
525        }
526
527        // Test with larger connection ID
528        let sql = "KILL QUERY 999999";
529        let statements =
530            ParserContext::create_with_dialect(sql, &GreptimeDbDialect {}, ParseOptions::default())
531                .unwrap();
532
533        assert_eq!(statements.len(), 1);
534        match &statements[0] {
535            Statement::Kill(Kill::ConnectionId(connection_id)) => {
536                assert_eq!(*connection_id, 999999);
537            }
538            _ => panic!("Expected Kill::ConnectionId statement"),
539        }
540    }
541
542    #[test]
543    pub fn test_parse_kill_process_statement() {
544        use crate::statements::kill::Kill;
545
546        // Test KILL with process ID string
547        let sql = "KILL 'process-123'";
548        let statements =
549            ParserContext::create_with_dialect(sql, &GreptimeDbDialect {}, ParseOptions::default())
550                .unwrap();
551
552        assert_eq!(statements.len(), 1);
553        match &statements[0] {
554            Statement::Kill(Kill::ProcessId(process_id)) => {
555                assert_eq!(process_id, "process-123");
556            }
557            _ => panic!("Expected Kill::ProcessId statement"),
558        }
559
560        // Test with double quotes
561        let sql = "KILL \"process-456\"";
562        let statements =
563            ParserContext::create_with_dialect(sql, &GreptimeDbDialect {}, ParseOptions::default())
564                .unwrap();
565
566        assert_eq!(statements.len(), 1);
567        match &statements[0] {
568            Statement::Kill(Kill::ProcessId(process_id)) => {
569                assert_eq!(process_id, "process-456");
570            }
571            _ => panic!("Expected Kill::ProcessId statement"),
572        }
573
574        // Test with UUID-like process ID
575        let sql = "KILL 'f47ac10b-58cc-4372-a567-0e02b2c3d479'";
576        let statements =
577            ParserContext::create_with_dialect(sql, &GreptimeDbDialect {}, ParseOptions::default())
578                .unwrap();
579
580        assert_eq!(statements.len(), 1);
581        match &statements[0] {
582            Statement::Kill(Kill::ProcessId(process_id)) => {
583                assert_eq!(process_id, "f47ac10b-58cc-4372-a567-0e02b2c3d479");
584            }
585            _ => panic!("Expected Kill::ProcessId statement"),
586        }
587    }
588
589    #[test]
590    pub fn test_parse_kill_statement_errors() {
591        // Test KILL QUERY without connection ID
592        let sql = "KILL QUERY";
593        let result =
594            ParserContext::create_with_dialect(sql, &GreptimeDbDialect {}, ParseOptions::default());
595        assert!(result.is_err());
596
597        // Test KILL QUERY with non-numeric connection ID
598        let sql = "KILL QUERY 'not-a-number'";
599        let result =
600            ParserContext::create_with_dialect(sql, &GreptimeDbDialect {}, ParseOptions::default());
601        assert!(result.is_err());
602
603        // Test KILL without any argument
604        let sql = "KILL";
605        let result =
606            ParserContext::create_with_dialect(sql, &GreptimeDbDialect {}, ParseOptions::default());
607        assert!(result.is_err());
608
609        // Test KILL QUERY with connection ID that's too large for u32
610        let sql = "KILL QUERY 4294967296"; // u32::MAX + 1
611        let result =
612            ParserContext::create_with_dialect(sql, &GreptimeDbDialect {}, ParseOptions::default());
613        assert!(result.is_err());
614    }
615
616    #[test]
617    pub fn test_parse_kill_statement_edge_cases() {
618        use crate::statements::kill::Kill;
619
620        // Test KILL QUERY with zero connection ID
621        let sql = "KILL QUERY 0";
622        let statements =
623            ParserContext::create_with_dialect(sql, &GreptimeDbDialect {}, ParseOptions::default())
624                .unwrap();
625
626        assert_eq!(statements.len(), 1);
627        match &statements[0] {
628            Statement::Kill(Kill::ConnectionId(connection_id)) => {
629                assert_eq!(*connection_id, 0);
630            }
631            _ => panic!("Expected Kill::ConnectionId statement"),
632        }
633
634        // Test KILL QUERY with maximum u32 value
635        let sql = "KILL QUERY 4294967295"; // u32::MAX
636        let statements =
637            ParserContext::create_with_dialect(sql, &GreptimeDbDialect {}, ParseOptions::default())
638                .unwrap();
639
640        assert_eq!(statements.len(), 1);
641        match &statements[0] {
642            Statement::Kill(Kill::ConnectionId(connection_id)) => {
643                assert_eq!(*connection_id, 4294967295);
644            }
645            _ => panic!("Expected Kill::ConnectionId statement"),
646        }
647
648        // Test KILL with empty string process ID
649        let sql = "KILL ''";
650        let statements =
651            ParserContext::create_with_dialect(sql, &GreptimeDbDialect {}, ParseOptions::default())
652                .unwrap();
653
654        assert_eq!(statements.len(), 1);
655        match &statements[0] {
656            Statement::Kill(Kill::ProcessId(process_id)) => {
657                assert_eq!(process_id, "");
658            }
659            _ => panic!("Expected Kill::ProcessId statement"),
660        }
661    }
662
663    #[test]
664    pub fn test_parse_kill_statement_case_insensitive() {
665        use crate::statements::kill::Kill;
666
667        // Test lowercase
668        let sql = "kill query 123";
669        let statements =
670            ParserContext::create_with_dialect(sql, &GreptimeDbDialect {}, ParseOptions::default())
671                .unwrap();
672
673        assert_eq!(statements.len(), 1);
674        match &statements[0] {
675            Statement::Kill(Kill::ConnectionId(connection_id)) => {
676                assert_eq!(*connection_id, 123);
677            }
678            _ => panic!("Expected Kill::ConnectionId statement"),
679        }
680
681        // Test mixed case
682        let sql = "Kill Query 456";
683        let statements =
684            ParserContext::create_with_dialect(sql, &GreptimeDbDialect {}, ParseOptions::default())
685                .unwrap();
686
687        assert_eq!(statements.len(), 1);
688        match &statements[0] {
689            Statement::Kill(Kill::ConnectionId(connection_id)) => {
690                assert_eq!(*connection_id, 456);
691            }
692            _ => panic!("Expected Kill::ConnectionId statement"),
693        }
694    }
695}
sql/parser.rs

sql/
parser.rs
