Update the vstream doc in v17.0 (#1410)

* Update the vstream doc in v17.0 to reflect vitessio/vitess#11886 Signed-off-by: yoheimuta <[email protected]> * Update content/en/docs/17.0/reference/vreplication/vstream.md Co-authored-by: Matt Lord <[email protected]> Signed-off-by: yohei yoshimuta <[email protected]> * Update content/en/docs/17.0/reference/vreplication/vstream.md Co-authored-by: Matt Lord <[email protected]> Signed-off-by: yohei yoshimuta <[email protected]> * Update content/en/docs/17.0/reference/vreplication/vstream.md Co-authored-by: Matt Lord <[email protected]> Signed-off-by: yohei yoshimuta <[email protected]> * Update content/en/docs/17.0/reference/vreplication/vstream.md Co-authored-by: Matt Lord <[email protected]> Signed-off-by: yohei yoshimuta <[email protected]> * Update content/en/docs/17.0/reference/vreplication/vstream.md Co-authored-by: Matt Lord <[email protected]> Signed-off-by: yohei yoshimuta <[email protected]> * Remove the unused forward slash at the end of Match value Signed-off-by: yoheimuta <[email protected]> * Add an empty line between the sections Signed-off-by: yoheimuta <[email protected]> --------- Signed-off-by: yoheimuta <[email protected]> Signed-off-by: yohei yoshimuta <[email protected]> Co-authored-by: Matt Lord <[email protected]>
vitessio · Mar 16, 2023 · 8fb5ea9 · 8fb5ea9
1 parent 83e8d2a
commit 8fb5ea9
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diff --git a/content/en/docs/17.0/reference/vreplication/vstream.md b/content/en/docs/17.0/reference/vreplication/vstream.md
@@ -73,6 +73,9 @@ The keyspace, shard, and GTID position list to start streaming from. If no `Shar
 then a [table copy phase](https://github.com/vitessio/vitess/issues/6277) will be initiated for the tables matched
 by the provided [filter](#filter) on the given shard.
 
+If the `ShardGtid.Shard` value is omitted, this means that all shards in the keyspace specified in the `ShardGtid.Keyspace` value are included. 
+Additionally, if the `ShardGtid.Keyspace` value has a `/` prefix, you can use regular expressions such as `/.*` to include all keyspaces.
+
 #### Filter
 
 **Type** [Filter](https://pkg.go.dev/vitess.io/vitess/go/vt/proto/binlogdata#Filter)\
@@ -197,6 +200,56 @@ for {
     ...
 ```
 
+</br>
+
+#### Copy All Tables From All Shards in the `ks` Keyspace
+
+Below is a snippet in Go that demonstrates how to copy from all shards by omitting `ShardGtid.Shard`:
+
+```go
+vgtid := &binlogdatapb.VGtid{
+  ShardGtids: []*binlogdatapb.ShardGtid{{
+    Keyspace: "ks",
+    Gtid: "",
+  }},
+}
+filter := &binlogdatapb.Filter{
+  Rules: []*binlogdatapb.Rule{{
+    Match: "/.*",
+  }},
+}
+flags := &vtgatepb.VStreamFlags{}
+reader, err := gconn.VStream(ctx, topodatapb.TabletType_PRIMARY, vgtid, filter, flags)
+```
+
+</br>
+
+#### Copy All Tables From All Shards in All Keyspaces
+
+Below is a snippet in Go that demonstrates how to copy from all keyspaces by specifying `/.*` as the value for  `ShardGtid.Keyspace`:
+
+```go
+vgtid := &binlogdatapb.VGtid{
+  ShardGtids: []*binlogdatapb.ShardGtid{{
+    Keyspace: "/.*",
+    Gtid: "",
+  }},
+}
+filter := &binlogdatapb.Filter{
+  Rules: []*binlogdatapb.Rule{{
+    Match: "/.*",
+  }},
+}
+flags := &vtgatepb.VStreamFlags{}
+reader, err := gconn.VStream(ctx, topodatapb.TabletType_PRIMARY, vgtid, filter, flags)
+```
+
+</br>
+{{< warning >}}
+Copying from all keyspaces can generate a significant amount of load and potentially impact production traffic.
+Therefore, please exercise caution when using regular expressions in production.
+{{< /warning >}}
+
 ## Debugging
 
 There is also an SQL interface that can be used for testing and debugging from a `vtgate`. Here's an example: