Databend Dev Blog

Databend [1]  aimed to be an open source  elastic  and  reliable  cloud warehouse, it offers blazing fast query and combines elasticity, simplicity, low cost of the cloud, built to make the Data Cloud easy. Big changes Below is a list of some major changes that we don't want you to miss. Features • support user defined function  by  @lianghanzhen [2] • support user defined function ( #3655 [3] ) • alter function feature ( #3670 [4] ) • support expression as definition ( #3684 [5] ) • add new planner framework  by  @leiysky [6]  ( #2983 [7] ) • add more strings functions • CHAR  by  @BlackSmith96 [8]  ( #3552 [9] , merging in  #3644 [10]  by  @sundy-li [11] ) Improvement • add new ArrayBuilder & Improve merge result  by  @Veeupup [12]  ( #3665 [13] ) • add DataTypeAndNullable  by  @zhang2014 [14]  ( #3658 [15] ) • support append columns in create table as select  by...

Databend [1]  aimed to be an open source  elastic  and  reliable  cloud warehouse, it offers blazing fast query and combines elasticity, simplicity, low cost of the cloud, built to make the Data Cloud easy. Big changes Below is a list of some major changes that we don't want you to miss. Features • meta support multi-tenant  by  @ariesdevil [2] . ( #3790 [3] ) • support USE TENANT 'tenant_id'  by  @BohuTANG [4] . ( #3793 [5] ) • add priv check  by  @flaneur2020 [6] . ( #3710 [7] ) Improvement • range filter support multi-column expression  by  @zhyass [8] . ( #3835 [9] • refine transaction impl  by  @ariesdevil [10] . ( #3837 [11] ) • add storage configs to system.configs  by  @lianghanzhen [12] . ( #3822 [13] ) • split the apply_cmd function to sub functions  by  @lichuang [14] . ( #3831 [15] ) • refine cache  by  @dantengsky [16] . ( #3798 [17] ) • improve for expression monotonici...

Databend [1]  aimed to be an open source  elastic  and  reliable  cloud warehouse, it offers blazing fast query and combines elasticity, simplicity, low cost of the cloud, built to make the Data Cloud easy. Big changes Below is a list of some major changes that we don't want you to miss. Features • add proxy mode access check  by  @BohuTANG [2] . ( #3776 [3] ) • add basic tokio-console support  by  @PsiACE [4] . ( #3739 [5] ) • add generate command for bendctl  by  @kevinw66 [6] . ( #3732 [7] ) Improvement • add more metrics to query_log  by  @dantengsky [8] . ( #3773 [9] ) • make parquet reader works with only one stream reader  by  @dantengsky [10] . ( #3757 [11] ) • fuse metadata cache  by  @Veeupup [12] . ( #3761 [13] ) • UDF refinement  by  @lianghanzhen [14] . ( #3743 [15] ) • cli up improvement  by  @sundy-li [16] . ( #3699 [17] ) • replace arrow flight with gRPC  by...