sql/parsers/
execute_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 snafu::ResultExt;
16use sqlparser::ast::Expr;
17use sqlparser::keywords::Keyword;
18use sqlparser::parser::Parser;
19
20use crate::error::{Result, SyntaxSnafu};
21use crate::parser::ParserContext;
22
23impl ParserContext<'_> {
24    /// Parses MySQL style 'EXECUTE stmt_name USING param_list' into a stmt_name string and a list of parameters.
25    /// Only use for MySQL. for PostgreSQL, use `sqlparser::parser::Parser::parse_execute` instead.
26    pub(crate) fn parse_mysql_execute(&mut self) -> Result<(String, Vec<Expr>)> {
27        self.parser
28            .expect_keyword(Keyword::EXECUTE)
29            .context(SyntaxSnafu)?;
30        let stmt_name = self.parser.parse_identifier().context(SyntaxSnafu)?;
31        if self.parser.parse_keyword(Keyword::USING) {
32            let param_list = self
33                .parser
34                .parse_comma_separated(Parser::parse_expr)
35                .context(SyntaxSnafu)?;
36            Ok((stmt_name.value, param_list))
37        } else {
38            Ok((stmt_name.value, vec![]))
39        }
40    }
41}
sql/parsers/execute_parser.rs

sql/parsers/
execute_parser.rs
