com.sap.cds.jdbc.postgresql.PostgreSqlStatementResolver

public class PostgreSqlStatementResolver extends GenericStatementResolver

Constructor Details
- PostgreSqlStatementResolver
  
  public PostgreSqlStatementResolver()
Method Details
- upsert
  
  public String upsert(String table, Stream<String> keyColumns, Stream<String> upsertColumns, Stream<String> upsertValues)
  
  PostgreSQL: INSERT INTO with ON CONFLICT DO UPDATE
  ON CONFLICT can be used to specify an alternative action to raising a unique constraint or exclusion constraint violation error. For each individual row proposed for insertion, either the insertion proceeds, or, if an arbiter constraint or index specified by conflict_target is violated, the alternative conflict_action is taken. ON CONFLICT DO UPDATE updates the existing row that conflicts with the row proposed for insertion as its alternative action.
  ON CONFLICT DO UPDATE guarantees an atomic INSERT or UPDATE outcome; provided there is no independent error, one of those two outcomes is guaranteed, even under high concurrency. This is also known as UPSERT — “UPDATE or INSERT”.
  https://www.postgresql.org/docs/current/sql-insert.html#SQL-ON-CONFLICT
- lockMode
  
  public String lockMode(CqnLock.Mode mode)
- timeoutClause
  
  public Optional<String> timeoutClause(int timeoutSeconds)
- deleteAll
  
  public String deleteAll(String tableName)

Class PostgreSqlStatementResolver

Constructor Summary