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new 6e3d47bfde6 Update query-optimizer.md (#1244)
6e3d47bfde6 is described below
commit 6e3d47bfde6e23c41f41fc62fa95a13cad0284a2
Author: morrySnow <101034200+morrys...@users.noreply.github.com>
AuthorDate: Fri Nov 1 23:53:26 2024 +0800
Update query-optimizer.md (#1244)
# Versions
- [ ] dev
- [ ] 3.0
- [x] 2.1
- [ ] 2.0
# Languages
- [ ] Chinese
- [x] English
---
versioned_docs/version-2.1/query-acceleration/query-optimizer.md | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/versioned_docs/version-2.1/query-acceleration/query-optimizer.md
b/versioned_docs/version-2.1/query-acceleration/query-optimizer.md
index 61aee3e4160..b43df07cdf6 100644
--- a/versioned_docs/version-2.1/query-acceleration/query-optimizer.md
+++ b/versioned_docs/version-2.1/query-acceleration/query-optimizer.md
@@ -62,10 +62,10 @@ The execution process of the optimizer is divided into the
following steps:
## Session Variables
-**1. Set Planning Timeout** **`enable_nereids_timeout_second`**
+**1. Set Planning Timeout** **`nereids_timeout_second`**
- This variable is used to set the maximum allowed time for query planning.
When the planning time exceeds this set value, query planning will be
terminated, and an error message will be returned. During the process of
planning query statements, the system obtains read locks for all tables
involved in the SQL, primarily to maintain cluster stability and prevent
excessive resource occupation and lock conflicts caused by excessively long
planning times.
- Default value: 30s
-- Applicable scenarios: When queries involve a large number of external tables
or particularly complex query statements, this value can be appropriately
increased to ensure that queries can proceed normally.
\ No newline at end of file
+- Applicable scenarios: When queries involve a large number of external tables
or particularly complex query statements, this value can be appropriately
increased to ensure that queries can proceed normally.
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