iffyio commented on code in PR #1970:
URL:
https://github.com/apache/datafusion-sqlparser-rs/pull/1970#discussion_r2249139287
##########
src/parser/mod.rs:
##########
@@ -13828,7 +13840,13 @@ impl<'a> Parser<'a> {
self.expect_token(&Token::LParen)?;
let aggregate_functions =
self.parse_comma_separated(Self::parse_aliased_function_call)?;
self.expect_keyword_is(Keyword::FOR)?;
- let value_column = self.parse_period_separated(|p|
p.parse_identifier())?;
+ let value_column = if self.peek_token_ref().token == Token::LParen {
+ self.parse_parenthesized_compound_identifier_list(Mandatory,
false)?
+ } else {
+ vec![Expr::CompoundIdentifier(
+ self.parse_period_separated(|p| p.parse_identifier())?,
+ )]
+ };
Review Comment:
similar to unpivot can we call parse_expr directly here?
##########
tests/sqlparser_common.rs:
##########
@@ -10922,6 +10925,15 @@ fn parse_pivot_table() {
verified_stmt(sql_without_table_alias).to_string(),
sql_without_table_alias
);
+
+ let sql_with_multiple_value_column = concat!(
+ "SELECT * FROM person ",
+ "PIVOT(SUM(age) AS a, AVG(class) AS c FOR (name, age) IN (('John', 30)
AS c1, ('Mike', 40) AS c2))"
+ );
+ assert_eq!(
+ verified_stmt(sql_with_multiple_value_column).to_string(),
+ sql_with_multiple_value_column
+ );
Review Comment:
hmm this assertion is probably not needed, I think verified_stmt already
does the same assertion
##########
src/ast/query.rs:
##########
@@ -1336,7 +1336,7 @@ pub enum TableFactor {
Pivot {
table: Box<TableFactor>,
aggregate_functions: Vec<ExprWithAlias>, // Function expression
- value_column: Vec<Ident>,
+ value_column: Vec<Expr>, // Expr is a identifier or a
compound identifier
Review Comment:
```suggestion
value_column: Vec<Expr>,
```
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