bbeaudreault

package vitessutil

import (
	"fmt"

	"encoding/json"
	"time"

	"github.com/pkg/errors"
	jww "github.com/spf13/jwalterweatherman"

bbeaudreault

func validateSubquerySamePlan(node sqlparser.SQLNode, outer *engine.Route, vschema VSchema) bool {
	samePlan := true
	inSubQuery := false

	_ = sqlparser.Walk(func(node sqlparser.SQLNode) (kontinue bool, err error) {
		if _, ok := node.(*sqlparser.Subquery); ok {
			inSubQuery = true
			return true, nil
		}

bbeaudreault

From bc5de4ffd41b7dbb88a51ad255af6b617e9282f8 Mon Sep 17 00:00:00 2001
From: Bryan Beaudreault <bbeaudreault@hubspot.com>
Date: Thu, 6 May 2021 10:39:05 -0400
Subject: [PATCH] Cache costs so we don't waste so much time recomputing things
 that havent changed

---
 .../master/balancer/BaseLoadBalancer.java     | 22 +++++++
 .../balancer/StochasticLoadBalancer.java      | 65 ++++++++++++-------
 .../balancer/TestStochasticLoadBalancer.java  |  2 +-

bbeaudreault

@Test
public void testMergeEmptyWithMetaCache() throws Throwable {
    TableName tableName = TableName.valueOf("MergeEmpty");
    byte[] family = Bytes.toBytes("CF");
    TableDescriptor td = TableDescriptorBuilder.newBuilder(tableName)
      .setColumnFamily(ColumnFamilyDescriptorBuilder.of(family)).build();
    TEST_UTIL.getAdmin().createTable(td, new byte[][] { Bytes.toBytes(2), Bytes.toBytes(5) });
    TEST_UTIL.waitTableAvailable(tableName);
    TEST_UTIL.waitUntilNoRegionsInTransition();
    RegionInfo regionA = null;