to_bitmap function only support string param only，add to_bitmap() function with int type, this can avoid convert int type to string and then convert string to int
From now, we don't support type derivation for array function's arguments.
So that the cases below will return wrong values or even cause be core.
mysql> select array_union([1],[10000000]);
+----------------------------------------+
| array_union(ARRAY(1), ARRAY(10000000)) |
+----------------------------------------+
| [1, -128] |
+----------------------------------------+
1 row in set (0.03 sec)
mysql> select array_union([NULL],[1]);
ERROR 1105 (HY000): RpcException, msg: io.grpc.StatusRuntimeException: UNAVAILABLE: Network closed for unknown reason
mysql> select array_union([],[1]);
ERROR 1105 (HY000): RpcException, msg: io.grpc.StatusRuntimeException: UNAVAILABLE: Network closed for unknown reason
This commit make a small fix to derivate the argument types of the array function
1、 For null type in arguments, cast the null type to boolean type, because null type should not be seen in be.
2、For different types in arguments, cast all arguments type to their compatible type.
This pr is used to expand the supported data type for array_min/array_max function.
Before the change , the array_min/array_max function can't support the date/datetime type.
After the change, array_min/array_max function can support the date/datetime type.
Co-authored-by: hucheng01 <hucheng01@baidu.com>
There will be personal info in doris_be --version, like this:
doris-0.0.0-trunk RELEASE (build git://hk-dev01/mnt/disk2/ygl/code/github/apache-doris/be/../@8b7d928af26318f71098f1be2ab03ed83b1955fd)
Built on Wed, 12 Oct 2022 18:36:44 CST by ygl@hk-dev01
Since we always not need this info, commit id is enough, I remove these redundant info, the new result is like this:
doris-0.0.0-trunk RELEASE (build git://hk-dev01@8b7d928)
Built on Thu, 13 Oct 2022 15:03:01 CST by hk-dev01
This pr did these things:
1. Change the nullable mode of 'from_unixtime' and 'parse_url' from DEPEND_ON_ARGUMENT to ALWAYS_NULLABLE, which nullable configuration was missing previously.
2. Add some new interfaces for origin NullableMode. This change inspired by the grammar of scala's mix-in trait, It help us to quickly understand the traits of function without read the lengthy procedural code and save the work to write some template code, like `class Substring extends ScalarFunction implements ImplicitCastInputTypes, PropagateNullable`. These are the interfaces:
- PropagateNullable: equals to NullableMode.DEPEND_ON_ARGUMENT
- AlwaysNullable: equals to NullableMode.ALWAYS_NULLABLE
- AlwaysNotNullable: equals to NullableMode.ALWAYS_NOT_NULLABLE
- others ComputeNullable: equals to NullableMode.CUSTOM
3. Add `GenerateScalarFunction` to generate nereids-style function code from legacy functions, but not actual generate any new function class yet, because the function's trait is not ready for use. I need add some traits for the legacy function's CompareMode and NonDeterministic, this thought is the same as ComputeNullable.
