suneet-s commented on a change in pull request #10350:
URL: https://github.com/apache/druid/pull/10350#discussion_r486066973
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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:
The PR description says the functions are called `contains` and
`icontains`, but it looks like this patch uses the names with `_str` appended.
Was there any reason you chose these names instead of others?
I couldn't find an equivalent query in postgresql, and when I googled for a
contains operator: Oracle and SQL server appear to have one -
https://docs.oracle.com/cd/B28359_01/text.111/b28303/query.htm#g1016054 and
https://docs.microsoft.com/en-us/sql/t-sql/queries/contains-transact-sql?view=sql-server-2017.
Also, was there any reasoning behind having 2 functions instead of 1 with a
parameter to ignore the case? I don't think I have a strong preference either
way yet, just curious
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