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Allow to use the TABLE keyword in DESC|DESCRIBE|EXPLAIN TABLE statement (#1351)

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hulk 2024-07-30 05:16:29 +08:00 • committed by GitHub
parent 547d82f07d
commit 7fdb2ec5d1
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3 changed files with 42 additions and 12 deletions
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9
src/ast/mod.rs
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@ -2699,6 +2699,11 @@ pub enum Statement {
describe_alias: DescribeAlias,
/// Hive style `FORMATTED | EXTENDED`
hive_format: Option<HiveDescribeFormat>,
/// Snowflake and ClickHouse support `DESC|DESCRIBE TABLE <table_name>` syntax
///
/// [Snowflake](https://docs.snowflake.com/en/sql-reference/sql/desc-table.html)
/// [ClickHouse](https://clickhouse.com/docs/en/sql-reference/statements/describe-table)
has_table_keyword: bool,
/// Table name
#[cfg_attr(feature = "visitor", visit(with = "visit_relation"))]
table_name: ObjectName,
@ -2872,6 +2877,7 @@ impl fmt::Display for Statement {
Statement::ExplainTable {
describe_alias,
hive_format,
has_table_keyword,
table_name,
} => {
write!(f, "{describe_alias} ")?;
@ -2879,6 +2885,9 @@ impl fmt::Display for Statement {
if let Some(format) = hive_format {
write!(f, "{} ", format)?;
}
if *has_table_keyword {
write!(f, "TABLE ")?;
}
write!(f, "{table_name}")
}

3
src/parser/mod.rs
View file

@ -7972,10 +7972,13 @@ impl<'a> Parser<'a> {
_ => {}
}
// only allow to use TABLE keyword for DESC|DESCRIBE statement
let has_table_keyword = self.parse_keyword(Keyword::TABLE);
let table_name = self.parse_object_name(false)?;
Ok(Statement::ExplainTable {
describe_alias,
hive_format,
has_table_keyword,
table_name,
})
}