Fixes based on comments

Author: romanoff

src/ast/ddl.rs

@@ -2903,7 +2903,7 @@ pub struct CreateTable {
     pub volatile: bool,
     /// `ICEBERG` clause
     pub iceberg: bool,
-    /// BigQuery `SNAPSHOT` clause
+    /// `SNAPSHOT` clause
     /// <https://cloud.google.com/bigquery/docs/reference/standard-sql/data-definition-language#create_snapshot_table_statement>
     pub snapshot: bool,
     /// Table name

src/ast/helpers/stmt_create_table.rs

@@ -81,7 +81,7 @@ pub struct CreateTableBuilder {
     pub volatile: bool,
     /// Iceberg-specific table flag.
     pub iceberg: bool,
-    /// BigQuery `SNAPSHOT` table flag.
+    /// `SNAPSHOT` table flag.
     pub snapshot: bool,
     /// Whether `DYNAMIC` table option is set.
     pub dynamic: bool,

src/parser/mod.rs

@@ -5099,7 +5099,7 @@ impl<'a> Parser<'a> {
         let persistent = dialect_of!(self is DuckDbDialect)
             && self.parse_one_of_keywords(&[Keyword::PERSISTENT]).is_some();
         let create_view_params = self.parse_create_view_params()?;
-        if self.parse_keywords(&[Keyword::SNAPSHOT, Keyword::TABLE]) {
+        if self.peek_keywords(&[Keyword::SNAPSHOT, Keyword::TABLE]) {
             self.parse_create_snapshot_table().map(Into::into)
         } else if self.parse_keyword(Keyword::TABLE) {
             self.parse_create_table(or_replace, temporary, global, transient)
@@ -6316,10 +6316,11 @@ impl<'a> Parser<'a> {
             .build())
     }
 
-    /// Parse BigQuery `CREATE SNAPSHOT TABLE` statement.
+    /// Parse `CREATE SNAPSHOT TABLE` statement.
     ///
     /// <https://cloud.google.com/bigquery/docs/reference/standard-sql/data-definition-language#create_snapshot_table_statement>
     pub fn parse_create_snapshot_table(&mut self) -> Result<CreateTable, ParserError> {
+        self.expect_keywords(&[Keyword::SNAPSHOT, Keyword::TABLE])?;
         let if_not_exists = self.parse_keywords(&[Keyword::IF, Keyword::NOT, Keyword::EXISTS]);
         let table_name = self.parse_object_name(true)?;
 

tests/sqlparser_bigquery.rs

@@ -2893,7 +2893,7 @@ fn test_alter_schema() {
 
 #[test]
 fn test_create_snapshot_table() {
-    bigquery().verified_stmt("CREATE SNAPSHOT TABLE dataset_id.table1 CLONE dataset_id.table2");
+    bigquery_and_generic().verified_stmt("CREATE SNAPSHOT TABLE dataset_id.table1 CLONE dataset_id.table2");
 
     bigquery().verified_stmt(
         "CREATE SNAPSHOT TABLE IF NOT EXISTS dataset_id.table1 CLONE dataset_id.table2",