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Refactor and add a comment to schema initialisation code #13309

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merged 2 commits into from
Jun 14, 2023
Merged

Refactor and add a comment to schema initialisation code #13309

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49eef85
feat: refactor and add a comment
GuptaManan100 Jun 13, 2023
25101bb
feat: address review comments
GuptaManan100 Jun 14, 2023
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6 changes: 5 additions & 1 deletion go/vt/sidecardb/sidecardb.go
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Original file line number Diff line number Diff line change
Expand Up @@ -368,7 +368,11 @@ func (si *schemaInit) setCurrentDatabase(dbName string) error {
func (si *schemaInit) getCurrentSchema(tableName string) (string, error) {
var currentTableSchema string

rs, err := si.exec(si.ctx, sqlparser.BuildParsedQuery(showCreateTableQuery, GetIdentifier(), sqlparser.String(sqlparser.NewIdentifierCS(tableName))).Query, 1, false)
// We escape the tableName because it can be a keyword.
// Converting the tableName to a case-sensitive identifier and converting back to a string using the
// sqlparser package, ensures that the table name is escaped with backticks if required.
escapedTableName := sqlparser.String(sqlparser.NewIdentifierCS(tableName))
rs, err := si.exec(si.ctx, sqlparser.BuildParsedQuery(showCreateTableQuery, GetIdentifier(), escapedTableName).Query, 1, false)
if err != nil {
if sqlErr, ok := err.(*mysql.SQLError); ok && sqlErr.Number() == mysql.ERNoSuchTable {
// table does not exist in the sidecar database
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