feat: implement wildcard select ilike

Author: HiranmayaGundu

src/ast/mod.rs

@@ -40,8 +40,8 @@ pub use self::ddl::{
 pub use self::operator::{BinaryOperator, UnaryOperator};
 pub use self::query::{
     ConnectBy, Cte, CteAsMaterialized, Distinct, ExceptSelectItem, ExcludeSelectItem, Fetch,
-    ForClause, ForJson, ForXml, GroupByExpr, IdentWithAlias, Join, JoinConstraint, JoinOperator,
-    JsonTableColumn, JsonTableColumnErrorHandling, LateralView, LockClause, LockType,
+    ForClause, ForJson, ForXml, GroupByExpr, IdentWithAlias, IlikeSelectItem, Join, JoinConstraint,
+    JoinOperator, JsonTableColumn, JsonTableColumnErrorHandling, LateralView, LockClause, LockType,
     NamedWindowDefinition, NonBlock, Offset, OffsetRows, OrderByExpr, Query, RenameSelectItem,
     ReplaceSelectElement, ReplaceSelectItem, Select, SelectInto, SelectItem, SetExpr, SetOperator,
     SetQuantifier, Table, TableAlias, TableFactor, TableVersion, TableWithJoins, Top, TopQuantity,

src/ast/query.rs

@@ -477,6 +477,9 @@ impl fmt::Display for IdentWithAlias {
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 #[cfg_attr(feature = "visitor", derive(Visit, VisitMut))]
 pub struct WildcardAdditionalOptions {
+    /// `[ILIKE...]`.
+    /// Snowflake syntax: <https://docs.snowflake.com/en/sql-reference/sql/select>
+    pub opt_ilike: Option<IlikeSelectItem>,
     /// `[EXCLUDE...]`.
     pub opt_exclude: Option<ExcludeSelectItem>,
     /// `[EXCEPT...]`.
@@ -492,6 +495,9 @@ pub struct WildcardAdditionalOptions {
 
 impl fmt::Display for WildcardAdditionalOptions {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        if let Some(ilike) = &self.opt_ilike {
+            write!(f, " {ilike}")?;
+        }
         if let Some(exclude) = &self.opt_exclude {
             write!(f, " {exclude}")?;
         }
@@ -508,6 +514,25 @@ impl fmt::Display for WildcardAdditionalOptions {
     }
 }
 
+/// Snowflake `ILIKE` information.
+///
+/// # Syntax
+/// ```plaintext
+/// ILIKE <value>
+/// ```
+#[derive(Debug, Clone, PartialEq, PartialOrd, Eq, Ord, Hash)]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "visitor", derive(Visit, VisitMut))]
+pub struct IlikeSelectItem {
+    pub pattern: Expr,
+}
+
+impl fmt::Display for IlikeSelectItem {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "ILIKE {}", self.pattern)?;
+        Ok(())
+    }
+}
 /// Snowflake `EXCLUDE` information.
 ///
 /// # Syntax

src/parser/mod.rs

@@ -8775,9 +8775,14 @@ impl<'a> Parser<'a> {
     pub fn parse_wildcard_additional_options(
         &mut self,
     ) -> Result<WildcardAdditionalOptions, ParserError> {
+        let opt_ilike = if dialect_of!(self is GenericDialect | SnowflakeDialect) {
+            self.parse_optional_select_item_ilike()?
+        } else {
+            None
+        };
         let opt_exclude = if dialect_of!(self is GenericDialect | DuckDbDialect | SnowflakeDialect)
         {
-            self.parse_optional_select_item_exclude()?
+            self.parse_optional_select_item_exclude(opt_ilike.is_some())?
         } else {
             None
         };
@@ -8801,20 +8806,39 @@ impl<'a> Parser<'a> {
         };
 
         Ok(WildcardAdditionalOptions {
+            opt_ilike,
             opt_exclude,
             opt_except,
             opt_rename,
             opt_replace,
         })
     }
 
+    pub fn parse_optional_select_item_ilike(
+        &mut self,
+    ) -> Result<Option<IlikeSelectItem>, ParserError> {
+        let opt_ilike = if self.parse_keyword(Keyword::ILIKE) {
+            let pattern = self.parse_value()?;
+            Some(IlikeSelectItem {
+                pattern: Expr::Value(pattern),
+            })
+        } else {
+            None
+        };
+        Ok(opt_ilike)
+    }
+
     /// Parse an [`Exclude`](ExcludeSelectItem) information for wildcard select items.
     ///
     /// If it is not possible to parse it, will return an option.
     pub fn parse_optional_select_item_exclude(
         &mut self,
+        opt_ilike: bool,
     ) -> Result<Option<ExcludeSelectItem>, ParserError> {
         let opt_exclude = if self.parse_keyword(Keyword::EXCLUDE) {
+            if opt_ilike {
+                return Err(ParserError::ParserError("Unexpected EXCLUDE".to_string()));
+            }
             if self.consume_token(&Token::LParen) {
                 let columns =
                     self.parse_comma_separated(|parser| parser.parse_identifier(false))?;

tests/sqlparser_common.rs

@@ -6560,6 +6560,7 @@ fn lateral_function() {
         distinct: None,
         top: None,
         projection: vec![SelectItem::Wildcard(WildcardAdditionalOptions {
+            opt_ilike: None,
             opt_exclude: None,
             opt_except: None,
             opt_rename: None,

tests/sqlparser_duckdb.rs

@@ -148,6 +148,7 @@ fn test_select_union_by_name() {
                 distinct: None,
                 top: None,
                 projection: vec![SelectItem::Wildcard(WildcardAdditionalOptions {
+                    opt_ilike: None,
                     opt_exclude: None,
                     opt_except: None,
                     opt_rename: None,
@@ -183,6 +184,7 @@ fn test_select_union_by_name() {
                 distinct: None,
                 top: None,
                 projection: vec![SelectItem::Wildcard(WildcardAdditionalOptions {
+                    opt_ilike: None,
                     opt_exclude: None,
                     opt_except: None,
                     opt_rename: None,

tests/sqlparser_snowflake.rs

@@ -1615,3 +1615,24 @@ fn test_select_wildcard_with_replace() {
     });
     assert_eq!(expected, select.projection[0]);
 }
+
+#[test]
+fn test_select_wildcard_with_ilike() {
+    let select = snowflake_and_generic().verified_only_select(r#"SELECT * ILIKE '%id%' FROM tbl"#);
+    let expected = SelectItem::Wildcard(WildcardAdditionalOptions {
+        opt_ilike: Some(IlikeSelectItem {
+            pattern: Expr::Value(Value::SingleQuotedString("%id%".to_owned())),
+        }),
+        ..Default::default()
+    });
+    assert_eq!(expected, select.projection[0]);
+}
+
+#[test]
+fn test_select_wildcard_with_ilike_replace() {
+    let res = snowflake().parse_sql_statements(r#"SELECT * ILIKE '%id%' EXCLUDE col FROM tbl"#);
+    assert_eq!(
+        res.unwrap_err().to_string(),
+        "sql parser error: Unexpected EXCLUDE"
+    );
+}