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add support for SAVEPOINT statement (#438)

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Poonai 2022-03-13 12:59:26 +05:30 • committed by GitHub
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commit 12a3e97ef3
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src/parser.rs
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@ -179,6 +179,7 @@ impl<'a> Parser<'a> {
// standard `START TRANSACTION` statement. It is supported
// by at least PostgreSQL and MySQL.
Keyword::BEGIN => Ok(self.parse_begin()?),
Keyword::SAVEPOINT => Ok(self.parse_savepoint()?),
Keyword::COMMIT => Ok(self.parse_commit()?),
Keyword::ROLLBACK => Ok(self.parse_rollback()?),
Keyword::ASSERT => Ok(self.parse_assert()?),
@ -367,6 +368,11 @@ impl<'a> Parser<'a> {
Ok(Statement::Assert { condition, message })
}
pub fn parse_savepoint(&mut self) -> Result<Statement, ParserError> {
let name = self.parse_identifier()?;
Ok(Statement::Savepoint { name })
}
/// Parse an expression prefix
pub fn parse_prefix(&mut self) -> Result<Expr, ParserError> {
// PostgreSQL allows any string literal to be preceded by a type name, indicating that the