Package gudusoft.gsqlparser.resolver2.metadata

Class BatchMetadataCollector

Object
gudusoft.gsqlparser.resolver2.metadata.BatchMetadataCollector
public class BatchMetadataCollector extends Object
Delta 1: Batch-local DDL metadata collector. Collects table and column metadata from DDL statements (CREATE TABLE, CREATE VIEW) within the same SQL batch and creates a TSQLEnv for use by TSQLResolver2. This enables standalone resolution of SQL batches that contain both DDL and DML, without requiring external metadata from TSQLEnv. Example: 
 CREATE TABLE t(id int, name varchar(10));
 SELECT t.id, t.name FROM t;
The collector will extract table "t" with columns "id" and "name" from the CREATE TABLE statement, making them available for resolution in the SELECT.

  • Constructor Details

    • BatchMetadataCollector

      public BatchMetadataCollector(TStatementList statements, EDbVendor vendor)
      Create a batch metadata collector.
      Parameters:
      statements - The list of SQL statements to process
      vendor - The database vendor

  • Method Details

    • collect

      public TSQLEnv collect()
      Collect metadata from DDL statements and create a TSQLEnv.
      Returns:
      A TSQLEnv containing table/column metadata from DDL statements, or null if no DDL statements were found