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Fix alter table index descending #2387

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Merged
manticore-projects merged 1 commit into from
Feb 24, 2026
+13 −0
Merged

Fix alter table index descending #2387

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2 changes: 2 additions & 0 deletions src/main/jjtree/net/sf/jsqlparser/parser/JSqlParserCC.jjt
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Original file line number Diff line number Diff line change
Expand Up @@ -8731,11 +8731,13 @@ String AList():
String ColumnsNamesListItem():
{
Token tk = null;
Token sortDirection = null;
String item = null;
}
{
( item = RelObjectName() )
[ LOOKAHEAD(2) "(" tk = <S_LONG> ")" { item = item + "(" + tk.image + ")"; } ]
[ (sortDirection = <K_ASC> | sortDirection = <K_DESC>) { item = item + " " + sortDirection.image; } ]
{
return item;
}
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11 changes: 11 additions & 0 deletions src/test/java/net/sf/jsqlparser/statement/alter/AlterTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -572,6 +572,17 @@ public void testAlterTableIndex586() throws Exception {
+ "USING BTREE, ALGORITHM = INPLACE", result.toString());
}

@Test
public void testAlterTableDropAndAddUniqueIndexWithAscendingColumns() throws Exception {
Statement result =
CCJSqlParserUtil.parse("ALTER TABLE `wxp_dm`.`xqgl_req_report` "
+ "DROP INDEX `index_name`, "
+ "ADD UNIQUE INDEX `index_name`(`report_name` ASC) USING BTREE");
assertEquals("ALTER TABLE `wxp_dm`.`xqgl_req_report` DROP INDEX `index_name`, "
+ "ADD UNIQUE INDEX `index_name` (`report_name` ASC) USING BTREE",
result.toString());
}

@Test
public void testIssue259() throws JSQLParserException {
assertSqlCanBeParsedAndDeparsed(
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