From 0ed6365778affc354357ac71c8a1eb6e5ef8afac Mon Sep 17 00:00:00 2001 From: ckscks038038 Date: Wed, 26 Mar 2025 02:36:32 -0400 Subject: [PATCH] fix typo --- the-sql-language/index/indexes-and-order-by.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/the-sql-language/index/indexes-and-order-by.md b/the-sql-language/index/indexes-and-order-by.md index 46fb6257..4bd0df0a 100644 --- a/the-sql-language/index/indexes-and-order-by.md +++ b/the-sql-language/index/indexes-and-order-by.md @@ -6,7 +6,7 @@ 預設情況下,B-tree 索引按升羃儲存其項目,最後為空。這樣産生的索引是 x 欄位上索引的正向掃描,產生的輸出滿足 ORDER BY x(或者更詳細,ORDER BY x ASC NULLS LAST)。也可以向後掃描,產生滿足 ORDER BY x DESC 的輸出(或者更詳細地說,ORDER BY x DESC NULLS FIRST,因為 NULLS FIRST 是ORDER BY DESC 的預設值)。 -您可以透過在建笠索引時包含選項 ASC,DESC,NULLS FIRST 或 NULLS LAST來調整 B-tree 索引的順序;例如: +您可以透過在建立索引時包含選項 ASC,DESC,NULLS FIRST 或 NULLS LAST來調整 B-tree 索引的順序;例如: ``` CREATE INDEX test2_info_nulls_low ON test2 (info NULLS FIRST);