strongduanmu commented on a change in pull request #16261:
URL: https://github.com/apache/shardingsphere/pull/16261#discussion_r831821050
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File path:
shardingsphere-sql-parser/shardingsphere-sql-parser-dialect/shardingsphere-sql-parser-mysql/src/main/java/org/apache/shardingsphere/sql/parser/mysql/visitor/statement/impl/MySQLDDLStatementSQLVisitor.java
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@@ -333,6 +333,11 @@ public ASTNode visitAlterList(final AlterListContext ctx) {
result.getValue().add(new
DropConstraintDefinitionSegment(ctx.getStart().getStartIndex(),
ctx.getStop().getStopIndex(), constraintSegment));
} else if (null == alterTableDrop.KEY() && null ==
alterTableDrop.keyOrIndex()) {
result.getValue().add(generateDropColumnDefinitionSegment(alterTableDrop));
+ } else if (null != alterTableDrop.keyOrIndex()) {
+ IndexSegment indexSegment = (IndexSegment)
visit(alterTableDrop.indexName());
+ ConstraintSegment constraintSegment = new
ConstraintSegment(alterTableDrop.indexName().getStart().getStartIndex(),
alterTableDrop.indexName().getStop().getStopIndex(),
+ indexSegment.getIdentifier());
+ result.getValue().add(new
DropConstraintDefinitionSegment(ctx.getStart().getStartIndex(),
ctx.getStop().getStopIndex(), constraintSegment));
Review comment:
@ICannerxy Why parse drop index segment into
DropConstraintDefinitionSegment?
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