add: add "IF NOT EXISTS"

TaKO8Ki · TaKO8Ki · commit ef9aec44ad3a · 2020-09-09T19:42:52.000+09:00
diff --git a/diesel_tests/tests/schema_dsl/structures.rs b/diesel_tests/tests/schema_dsl/structures.rs
@@ -84,7 +84,7 @@ where
 {
     fn walk_ast(&self, mut out: AstPass<DB>) -> QueryResult<()> {
         out.unsafe_to_cache_prepared();
-        out.push_sql("CREATE TABLE ");
+        out.push_sql("CREATE TABLE IF NOT EXISTS ");
         out.push_identifier(self.name)?;
         out.push_sql(" (");
         self.columns.walk_ast(out.reborrow())?;

Original file line number	Diff line number	Diff line change
`@@ -84,7 +84,7 @@ where`
`84`	`84`	`{`
`85`	`85`	`fn walk_ast(&self, mut out: AstPass<DB>) -> QueryResult<()> {`
`86`	`86`	`out.unsafe_to_cache_prepared();`
`87`		`- out.push_sql("CREATE TABLE ");`
	`87`	`+ out.push_sql("CREATE TABLE IF NOT EXISTS ");`
`88`	`88`	`out.push_identifier(self.name)?;`
`89`	`89`	`out.push_sql(" (");`
`90`	`90`	`self.columns.walk_ast(out.reborrow())?;`