Support INSERT DEFAULT VALUES in MERGE

nene · Jan 8, 2024 · d041bfc · d041bfc
1 parent ab1dc04
commit d041bfc
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Showing 3 changed files with 18 additions and 10 deletions.
diff --git a/src/cst/Merge.ts b/src/cst/Merge.ts
@@ -1,7 +1,7 @@
 import { Alias } from "./Alias";
 import { BaseNode, Keyword } from "./Base";
 import { Expr, Identifier, ListExpr, ParenExpr, EntityName } from "./Expr";
-import { ValuesClause } from "./Insert";
+import { DefaultValues, ValuesClause } from "./Insert";
 import { SelectStmt, WithClause } from "./Select";
 import { SetClause } from "./Update";
 
@@ -82,9 +82,10 @@ export interface MergeActionInsert extends BaseNode {
  type: "merge_action_insert";
  insertKw: Keyword<"INSERT">;
  columns?: ParenExpr<ListExpr<Identifier>>;
- values: ValuesClause | MergeActionInsertRowClause;
+ values: ValuesClause | DefaultValues | MergeActionInsertRowClause;
 }
 
+// BigQuery
 export interface MergeActionInsertRowClause extends BaseNode {
  type: "merge_action_insert_row_clause";
  rowKw: Keyword<"ROW">;

diff --git a/src/parser.pegjs b/src/parser.pegjs
@@ -1732,14 +1732,15 @@ merge_action_update
  }
 
 merge_action_insert
- = insertKw:(INSERT __) columns:(paren$list$column __)? values:(values_clause / merge_action_insert_row_clause) {
- return loc({
- type: "merge_action_insert",
- insertKw: read(insertKw),
- columns: read(columns),
- values,
- });
- }
+ = insertKw:(INSERT __) columns:(paren$list$column __)?
+ values:(values_clause / default_values / merge_action_insert_row_clause) {
+ return loc({
+ type: "merge_action_insert",
+ insertKw: read(insertKw),
+ columns: read(columns),
+ values,
+ });
+ }
 
 merge_action_insert_row_clause
  = rowKw:ROW &bigquery {

diff --git a/test/dml/merge.test.ts b/test/dml/merge.test.ts
@@ -101,6 +101,12 @@ describe("merge into", () => {
  );
  });
 
+ dialect("postgresql", () => {
+ it("supports INSERT DEFAULT VALUES", () => {
+ testWc("MERGE INTO foo USING bar ON x=y WHEN NOT MATCHED THEN INSERT DEFAULT VALUES");
+ });
+ });
+
  dialect("bigquery", () => {
  it("supports INSERT ROW", () => {
  testWc("MERGE INTO foo USING bar ON x=y WHEN NOT MATCHED THEN INSERT ROW");