LucaCappelletti94 commented on code in PR #2417:
URL:
https://github.com/apache/datafusion-sqlparser-rs/pull/2417#discussion_r4318393335
##########
src/parser/mod.rs:
##########
@@ -18677,6 +18674,102 @@ impl<'a> Parser<'a> {
})
}
+ /// Parse `ALTER DEFAULT PRIVILEGES`, whose keywords are already consumed.
+ ///
+ /// See [PostgreSQL
docs](https://www.postgresql.org/docs/current/sql-alterdefaultprivileges.html).
+ pub fn parse_alter_default_privileges(
+ &mut self,
+ ) -> Result<AlterDefaultPrivileges, ParserError> {
+ // `FOR USER` is a synonym of `FOR ROLE` and is normalised to it.
+ let for_roles = if self.parse_keyword(Keyword::FOR) {
+ self.expect_one_of_keywords(&[Keyword::ROLE, Keyword::USER])?;
+ self.parse_comma_separated(|p| p.parse_identifier())?
+ } else {
+ vec![]
+ };
+
+ let in_schemas = if self.parse_keywords(&[Keyword::IN,
Keyword::SCHEMA]) {
+ self.parse_comma_separated(|p| p.parse_object_name(false))?
+ } else {
+ vec![]
+ };
+
+ let is_grant = if self.parse_keyword(Keyword::GRANT) {
+ true
+ } else if self.parse_keyword(Keyword::REVOKE) {
+ false
+ } else {
+ return self.expected_ref("GRANT or REVOKE", self.peek_token_ref());
+ };
+
+ let grant_option_for =
+ !is_grant && self.parse_keywords(&[Keyword::GRANT,
Keyword::OPTION, Keyword::FOR]);
+ let privileges = self.parse_privileges()?;
+ self.expect_keyword_is(Keyword::ON)?;
+ let object_type = self.parse_default_privileges_object_type()?;
+ self.expect_keyword_is(if is_grant { Keyword::TO } else {
Keyword::FROM })?;
+ let grantees = self.parse_grantees()?;
+
+ let operation = if is_grant {
+ AlterDefaultPrivilegesOperation::Grant {
+ privileges,
+ object_type,
+ grantees,
+ with_grant_option: self.parse_keywords(&[
+ Keyword::WITH,
+ Keyword::GRANT,
+ Keyword::OPTION,
+ ]),
+ }
+ } else {
+ AlterDefaultPrivilegesOperation::Revoke {
+ grant_option_for,
+ privileges,
+ object_type,
+ grantees,
+ cascade: self.parse_cascade_option(),
+ }
+ };
+
+ Ok(AlterDefaultPrivileges {
+ for_roles,
+ in_schemas,
+ operation,
+ })
+ }
+
+ /// Parse `ALL [PRIVILEGES]` or a comma separated privilege list.
+ fn parse_privileges(&mut self) -> Result<Privileges, ParserError> {
+ if self.parse_keyword(Keyword::ALL) {
+ Ok(Privileges::All {
+ with_privileges_keyword:
self.parse_keyword(Keyword::PRIVILEGES),
+ })
+ } else {
+ Ok(Privileges::Actions(self.parse_actions_list()?))
+ }
+ }
+
+ fn parse_default_privileges_object_type(
+ &mut self,
+ ) -> Result<DefaultPrivilegesObjectType, ParserError> {
+ for (keyword, object_type) in [
+ (Keyword::TABLES, DefaultPrivilegesObjectType::Tables),
+ (Keyword::SEQUENCES, DefaultPrivilegesObjectType::Sequences),
+ (Keyword::FUNCTIONS, DefaultPrivilegesObjectType::Functions),
+ (Keyword::ROUTINES, DefaultPrivilegesObjectType::Routines),
+ (Keyword::TYPES, DefaultPrivilegesObjectType::Types),
+ (Keyword::SCHEMAS, DefaultPrivilegesObjectType::Schemas),
Review Comment:
Done
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