executor: fix data race for chunk resource channel in index merge join (#18266)
executor: fix data race for chunk resource channel in index merge join (#18266)


ngaut/tidb,kyle-wang/tidb,ngaut/tidb,kyle-wang/tidb,coocood/tidb,kyle-wang/tidb,ngaut/tidb,EvilMcJerkface/tidb,c4pt0r/tidb,EvilMcJerkface/tidb,c4pt0r/tidb,c4pt0r/tidb,c4pt0r/tidb,pingcap/tidb,pingcap/tidb,ngaut/tidb,kyle-wang/tidb,XuHuaiyu/tidb,XuHuaiyu/tidb,pingcap/tidb,coocood/tidb,pingcap/tidb,pingcap/tidb,ngaut/tidb,kyle-wang/tidb,pingcap/tidb,ngaut/tidb,c4pt0r/tidb,kyle-wang/tidb,c4pt0r/tidb