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add annotation to some examples of type-conversion clause #2398

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Dec 27, 2023
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add annotation to some examples of type-conversion clause #2398

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2 changes: 2 additions & 0 deletions docs-2.0-zh/3.ngql-guide/3.data-types/9.type-conversion.md
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@
## 示例

```ngql
# 将列表拆分，并各自转换为布尔值显示。
nebula> UNWIND [true, false, 'true', 'false', NULL] AS b \
RETURN toBoolean(b) AS b;
+----------+
Expand All @@ -23,6 +24,7 @@ nebula> UNWIND [true, false, 'true', 'false', NULL] AS b \
| __NULL__ |
+----------+

# 将整数或字符串转换为浮点数。
nebula> RETURN toFloat(1), toFloat('1.3'), toFloat('1e3'), toFloat('not a number');
+------------+----------------+----------------+-------------------------+
| toFloat(1) | toFloat("1.3") | toFloat("1e3") | toFloat("not a number") |
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