herunkang2018 commented on code in PR #3479:
URL: https://github.com/apache/calcite/pull/3479#discussion_r1376086886
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site/_docs/reference.md:
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@@ -2739,6 +2739,9 @@ BigQuery's type system uses confusingly different names
for types and functions:
| b | FORMAT_TIMESTAMP(string timestamp) | Formats *timestamp*
according to the specified format *string*
| s | GETBIT(value, position) | Equivalent to
`BIT_GET(value, position)`
| b o | GREATEST(expr [, expr ]*) | Returns the greatest of
the expressions
+| h s | HEX(binary) | Converts *binary* into
a hexadecimal varchar. For example, hex(x'6162') returns '6162'
+| h s | HEX(bigint) | Converts *bigint* into
a shortened hexadecimal varchar. For example, hex('17') returns '11'
Review Comment:
The leading zeros will be removed to keep consistent with the behaviour of
Hive and Spark.
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