abhishekagarwal87 commented on a change in pull request #10350:
URL: https://github.com/apache/druid/pull/10350#discussion_r486103951
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File path: docs/querying/sql.md
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@@ -561,6 +561,8 @@ The [DataSketches
extension](../development/extensions-core/datasketches-extensi
|`COALESCE(value1, value2, ...)`|Returns the first value that is neither NULL
nor empty string.|
|`NVL(expr,expr-for-null)`|Returns 'expr-for-null' if 'expr' is null (or empty
string for string type).|
|`BLOOM_FILTER_TEST(<expr>, <serialized-filter>)`|Returns true if the value is
contained in a Base64-serialized bloom filter. See the [Bloom filter
extension](../development/extensions-core/bloom-filter.html) documentation for
additional details.|
+|`CONTAINS_STR(<expr>, str)`|Returns true if the `str` is a substring of
`expr`.|
+|`ICONTAINS_STR(<expr>, str)`|Returns true if the `str` is a substring of
`expr`. The match is case-insensitive.|
Review comment:
These are really good points and it's my bad to not put my reasonings in
the description earlier. The description has more details but in short,
- `contains` is a standard operator in calcite, built with non-string input
types.
- The function names are different for case insensitive flavour, to not
overload the function signature and follow standard MySQL convention
(`like`/`ilike`)
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