sql_fun_sqlast/sem/
create_seq.rs

1use crate::{
2    sem::{AlterSequence, AstAndContextPair},
3    syn::Opt,
4};
5
6use super::{AnalysisError, FullName, ParseContext, SemAst, alter_table::AlterObjSubCommand};
7
8/// analyzed [`crate::syn::CreateSeqStmt`]
9#[derive(Debug, Clone)]
10pub struct CreateSequence {
11    name: FullName,
12    alter_statements: Vec<AlterSequence>,
13    owner: Option<String>,
14}
15
16impl CreateSequence {
17    /// create instance
18    #[must_use]
19    pub fn new(name: &FullName) -> Self {
20        Self {
21            name: name.clone(),
22            alter_statements: Default::default(),
23            owner: Default::default(),
24        }
25    }
26
27    /// get sequence name
28    #[must_use]
29    pub fn name(&self) -> &FullName {
30        &self.name
31    }
32
33    /// apply `alter sequence`
34    pub fn apply_alter(&mut self, alter_seq: &AlterSequence) -> Result<(), AnalysisError> {
35        self.alter_statements.push(alter_seq.clone());
36
37        for cmd in alter_seq.commands() {
38            match cmd {
39                AlterObjSubCommand::ChangeOwner(s) => self.owner = Some(s.clone()),
40                AlterObjSubCommand::SetColumnDefault(_column_name, _sem_scalar_expr) => todo!(),
41                AlterObjSubCommand::AddConstraint(_constraint) => todo!(),
42                AlterObjSubCommand::ClusterOn(_) => todo!(),
43            }
44        }
45        Ok(())
46    }
47}
48
49/// analyze [`crate::syn::CreateSeqStmt`]
50pub fn analyze_create_seq<TParseContext>(
51    context: TParseContext,
52    _parent_schema: &Option<String>,
53    syn: crate::syn::CreateSeqStmt,
54) -> Result<AstAndContextPair<TParseContext>, AnalysisError>
55where
56    TParseContext: ParseContext,
57{
58    let Some(name) = syn.get_sequence().as_inner() else {
59        AnalysisError::raise_unexpected_none("create_seq.sequence")?
60    };
61
62    let create_sequence = CreateSequence::new(&FullName::try_from(name)?);
63    let context = context.apply_create_sequence(&create_sequence)?;
64    Ok(AstAndContextPair::new(
65        SemAst::CreateSequence(create_sequence),
66        context,
67    ))
68}
sql_fun_sqlast/sem/create_seq.rs

sql_fun_sqlast/sem/
create_seq.rs
