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[MINOR][DOCS] Clarify docs on default fractional numeric literals in SQL #45027

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[MINOR][DOCS] Clarify docs on default fractional numeric literals in SQL #45027

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document defalult fractional literals
nchammas Feb 5, 2024
de52df5
remove the new bullets
nchammas Feb 5, 2024
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27 changes: 21 additions & 6 deletions docs/sql-ref-literals.md
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Expand Up @@ -275,15 +275,30 @@ E [ + | - ] digit [ ... ]

Case insensitive, indicates `DECIMAL`, with the total number of digits as precision and the number of digits to right of decimal point as scale.

* **default (no postfix, no exponent)**

Indicates `DECIMAL`, same as the `BD` postfix.

* **default (no postfix, with exponent)**

Indicates `DOUBLE`, same as the `D` postfix.

#### Fractional Literals Examples

```sql
SELECT 12.578 AS col;
+------+
| col|
+------+
|12.578|
+------+
SELECT 12.578 AS col, TYPEOF(12.578) AS type;
+------+------------+
| col| type|
+------+------------+
|12.578|decimal(5,3)|
+------+------------+

SELECT 12.578E0 AS col, TYPEOF(12.578E0) AS type;
+------+------+
| col| type|
+------+------+
|12.578|double|
+------+------+

SELECT -0.1234567 AS col;
+----------+
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