Revert "Mm 30807 granular data retention scaffold (#16891)" (#17437)

This reverts commit 3ea75332e7.

store/sqlstore/store.go

@@ -42,17 +42,13 @@ import (
 type migrationDirection string
 
 const (
-	IndexTypeFullText                 = "full_text"
-	IndexTypeFullTextFunc             = "full_text_func"
-	IndexTypeDefault                  = "default"
-	PGDupTableErrorCode               = "42P07"      // see https://github.com/lib/pq/blob/master/error.go#L268
-	MySQLDupTableErrorCode            = uint16(1050) // see https://dev.mysql.com/doc/mysql-errors/5.7/en/server-error-reference.html#error_er_table_exists_error
-	PGForeignKeyViolationErrorCode    = "23503"
-	MySQLForeignKeyViolationErrorCode = 1452
-	PGDuplicateObjectErrorCode        = "42710"
-	MySQLDuplicateObjectErrorCode     = 1022
-	DBPingAttempts                    = 18
-	DBPingTimeoutSecs                 = 10
+	IndexTypeFullText      = "full_text"
+	IndexTypeFullTextFunc  = "full_text_func"
+	IndexTypeDefault       = "default"
+	PGDupTableErrorCode    = "42P07"      // see https://github.com/lib/pq/blob/master/error.go#L268
+	MySQLDupTableErrorCode = uint16(1050) // see https://dev.mysql.com/doc/mysql-errors/5.7/en/server-error-reference.html#error_er_table_exists_error
+	DBPingAttempts         = 18
+	DBPingTimeoutSecs      = 10
 	// This is a numerical version string by postgres. The format is
 	// 2 characters for major, minor, and patch version prior to 10.
 	// After 10, it's major and minor only.
@@ -100,7 +96,6 @@ type SqlStoreStores struct {
 	team                 store.TeamStore
 	channel              store.ChannelStore
 	post                 store.PostStore
-	retentionPolicy      store.RetentionPolicyStore
 	thread               store.ThreadStore
 	user                 store.UserStore
 	bot                  store.BotStore
@@ -189,7 +184,6 @@ func New(settings model.SqlSettings, metrics einterfaces.MetricsInterface) *SqlS
 	store.stores.team = newSqlTeamStore(store)
 	store.stores.channel = newSqlChannelStore(store, metrics)
 	store.stores.post = newSqlPostStore(store, metrics)
-	store.stores.retentionPolicy = newSqlRetentionPolicyStore(store, metrics)
 	store.stores.user = newSqlUserStore(store, metrics)
 	store.stores.bot = newSqlBotStore(store, metrics)
 	store.stores.audit = newSqlAuditStore(store)
@@ -243,7 +237,6 @@ func New(settings model.SqlSettings, metrics einterfaces.MetricsInterface) *SqlS
 
 	store.stores.channel.(*SqlChannelStore).createIndexesIfNotExists()
 	store.stores.post.(*SqlPostStore).createIndexesIfNotExists()
-	store.stores.retentionPolicy.(*SqlRetentionPolicyStore).createIndexesIfNotExists()
 	store.stores.thread.(*SqlThreadStore).createIndexesIfNotExists()
 	store.stores.user.(*SqlUserStore).createIndexesIfNotExists()
 	store.stores.bot.(*SqlBotStore).createIndexesIfNotExists()
@@ -1084,30 +1077,6 @@ func (ss *SqlStore) createIndexIfNotExists(indexName string, tableName string, c
 	return true
 }
 
-func (ss *SqlStore) CreateForeignKeyIfNotExists(
-	tableName, columnName, refTableName, refColumnName string,
-	onDeleteCascade bool,
-) (err error) {
-	deleteClause := ""
-	if onDeleteCascade {
-		deleteClause = "ON DELETE CASCADE"
-	}
-	constraintName := "FK_" + tableName + "_" + refTableName
-	sQuery := `
-	ALTER TABLE ` + tableName + `
-	ADD CONSTRAINT ` + constraintName + `
-	FOREIGN KEY (` + columnName + `) REFERENCES ` + refTableName + ` (` + refColumnName + `)
-	` + deleteClause + `;`
-	_, err = ss.GetMaster().ExecNoTimeout(sQuery)
-	if IsConstraintAlreadyExistsError(err) {
-		err = nil
-	}
-	if err != nil {
-		mlog.Warn("Could not create foreign key: " + err.Error())
-	}
-	return
-}
-
 func (ss *SqlStore) RemoveIndexIfExists(indexName string, tableName string) bool {
 
 	if ss.DriverName() == model.DATABASE_DRIVER_POSTGRES {
@@ -1153,20 +1122,6 @@ func (ss *SqlStore) RemoveIndexIfExists(indexName string, tableName string) bool
 	return true
 }
 
-func IsConstraintAlreadyExistsError(err error) bool {
-	switch dbErr := err.(type) {
-	case *pq.Error:
-		if dbErr.Code == PGDuplicateObjectErrorCode {
-			return true
-		}
-	case *mysql.MySQLError:
-		if dbErr.Number == MySQLDuplicateObjectErrorCode {
-			return true
-		}
-	}
-	return false
-}
-
 func IsUniqueConstraintError(err error, indexName []string) bool {
 	unique := false
 	if pqErr, ok := err.(*pq.Error); ok && pqErr.Code == "23505" {
@@ -1243,10 +1198,6 @@ func (ss *SqlStore) Post() store.PostStore {
 	return ss.stores.post
 }
 
-func (ss *SqlStore) RetentionPolicy() store.RetentionPolicyStore {
-	return ss.stores.retentionPolicy
-}
-
 func (ss *SqlStore) User() store.UserStore {
 	return ss.stores.user
 }