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Release docs: Add vreplication related entries to the v20 summary #16259

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16 changes: 16 additions & 0 deletions changelog/20.0/20.0.0/summary.md
Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,9 @@
- [Delete with Multi Target Support](#delete-multi-target)
- [User Defined Functions Support](#udf-support)
- [Insert Row Alias Support](#insert-row-alias-support)
- **[VReplication](#vreplication)**
- [Multi-tenant Imports](#multi-tenant)
- [VDiff Support For OnlineDDL Migrations](#vdiff-online-ddl)
- **[Query Timeout](#query-timeout)**
- **[Flag changes](#flag-changes)**
- [`pprof-http` default change](#pprof-http-default)
Expand Down Expand Up @@ -335,6 +338,19 @@ The new flag `--querylog-sample-rate float` adds support for sampling queries ba

The new flag `--tablet-filter-tags StringMap` adds support to VTGate for filtering tablets by tablet tag key/values, specified as comma-separated list of key:values. The tags of a tablet are defined by the VTTablet flag `--init_tags`, which is also defined as a comma-separated list of key:values.

### <a id="vreplication"/>VReplication

#### <a id="multi-tenant"/> Multi-tenant Imports

Support for multi-tenant imports has been added to `MoveTables`. If you have a multi-tenant architecture where each
tenant has their own database, you can import the tenants using multiple `MoveTables` workfows, one per tenant.
Each import is initiated with the new `--tenant-id` flag. The column name (and data type) need to be specified in
the VSchema of the target keyspace.
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Just a side note that we should add something in the docs that includes an example usage of the flag:

--tenant-id string                   (EXPERIMENTAL: Multi-tenant migrations only) The tenant ID to use for the MoveTables workflow into a multi-tenant keyspace.

As it's not entirely clear in the flag output that this is supposed to be a column reference from the vschema. Perhaps best to just document that in the flag's help output directly.


#### <a id="vdiff-online-ddl"/> VDiff support for OnlineDDL migrations

You can now run `VDiff`s on OnlineDDL schema change migrations, which are not yet cut over.

## <a id="minor-changes"/>Minor Changes

### <a id="new-stats"/>New Stats
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