Function writeDropSchemaObjects

backend/plugin/schema/pg/metadata_migration.go:1488–1516

(out *strings.Builder, schemaName string, schemaMeta *storepb.SchemaMetadata)

}

func writeDropSchemaObjects(out *strings.Builder, schemaName string, schemaMeta *storepb.SchemaMetadata) error {
	if schemaMeta == nil {
		return nil
	}
	diff := buildDropSchemaObjectsDiff(schemaName, schemaMeta)
	if err := writeDropTableTriggers(out, diff); err != nil {
		return err
	}
	if err := writeDropTableForeignKeysForTableDrops(out, diff); err != nil {
		return err
	}
	if err := writeDropDependentObjects(out, diff); err != nil {
		return err
	}
	for _, sequenceDiff := range diff.SequenceChanges {
		if isSequenceOwnedByDroppedTable(diff, sequenceDiff.SchemaName, sequenceDiff.OldSequence) {
			continue
		}
		if err := writeSequenceDiff(out, sequenceDiff); err != nil {
			return err
		}
	}
	for _, enumDiff := range diff.EnumTypeChanges {
		if err := writeEnumTypeDiff(out, enumDiff); err != nil {
			return err
		}
	}
	return nil
}

func buildDropSchemaObjectsDiff(schemaName string, schemaMeta *storepb.SchemaMetadata) *schema.MetadataDiff {
	diff := &schema.MetadataDiff{}