// SplitQuery is the stub for TabletServer.SplitQuery RPC
func (conn *gRPCQueryClient) SplitQuery(ctx context.Context, query querytypes.BoundQuery, splitColumn string, splitCount int64) (queries []querytypes.QuerySplit, err error) {
conn.mu.RLock()
defer conn.mu.RUnlock()
if conn.cc == nil {
err = tabletconn.ConnClosed
return
}
q, err := querytypes.BoundQueryToProto3(query.Sql, query.BindVariables)
if err != nil {
return nil, tabletconn.TabletErrorFromGRPC(err)
}
req := &querypb.SplitQueryRequest{
Target: conn.target,
EffectiveCallerId: callerid.EffectiveCallerIDFromContext(ctx),
ImmediateCallerId: callerid.ImmediateCallerIDFromContext(ctx),
Query: q,
SplitColumn: splitColumn,
SplitCount: splitCount,
SessionId: conn.sessionID,
}
sqr, err := conn.c.SplitQuery(ctx, req)
if err != nil {
return nil, tabletconn.TabletErrorFromGRPC(err)
}
split, err := querytypes.Proto3ToQuerySplits(sqr.Queries)
if err != nil {
return nil, tabletconn.TabletErrorFromGRPC(err)
}
return split, nil
}
// SplitQuery is the stub for TabletServer.SplitQuery RPC
// TODO(erez): Remove this method and rename SplitQueryV2 to SplitQuery once
// the migration to SplitQuery V2 is done.
func (conn *gRPCQueryClient) SplitQuery(ctx context.Context, target *querypb.Target, query querytypes.BoundQuery, splitColumn string, splitCount int64) (queries []querytypes.QuerySplit, err error) {
conn.mu.RLock()
defer conn.mu.RUnlock()
if conn.cc == nil {
err = tabletconn.ConnClosed
return
}
q, err := querytypes.BoundQueryToProto3(query.Sql, query.BindVariables)
if err != nil {
return nil, tabletconn.TabletErrorFromGRPC(err)
}
req := &querypb.SplitQueryRequest{
Target: target,
EffectiveCallerId: callerid.EffectiveCallerIDFromContext(ctx),
ImmediateCallerId: callerid.ImmediateCallerIDFromContext(ctx),
Query: q,
SplitColumn: []string{splitColumn},
SplitCount: splitCount,
NumRowsPerQueryPart: 0,
Algorithm: querypb.SplitQueryRequest_EQUAL_SPLITS,
UseSplitQueryV2: false,
}
sqr, err := conn.c.SplitQuery(ctx, req)
if err != nil {
return nil, tabletconn.TabletErrorFromGRPC(err)
}
split, err := querytypes.Proto3ToQuerySplits(sqr.Queries)
if err != nil {
return nil, tabletconn.TabletErrorFromGRPC(err)
}
return split, nil
}