Package gudusoft.gsqlparser.ext.calcite.catalog

Interface Column

All Known Implementing Classes:
SimpleCatalog.SimpleColumn
public interface Column
Represents a column in a database table.

This is a standalone version that can be used independently of Apache Calcite.

  • Method Details

    • getName

      String getName()
      Returns the name of the column.
      Returns:
      Column name

    • getTypeName

      String getTypeName()
      Returns the SQL type name of the column (e.g., "VARCHAR", "INTEGER", "DECIMAL").
      Returns:
      SQL type name

    • getOrdinalPosition

      int getOrdinalPosition()
      Returns the ordinal position of the column in the table (1-based).
      Returns:
      Ordinal position

    • isNullable

      boolean isNullable()
      Returns whether the column allows NULL values.
      Returns:
      true if nullable, false otherwise

    • getSize

      @Nullable Integer getSize()
      Returns the column size (e.g., VARCHAR length, INTEGER precision).
      Returns:
      Column size, or null if not applicable

    • getDecimalDigits

      @Nullable Integer getDecimalDigits()
      Returns the number of decimal digits (for numeric types).
      Returns:
      Decimal digits, or null if not applicable

    • getDefaultValue

      @Nullable String getDefaultValue()
      Returns the default value of the column.
      Returns:
      Default value, or null if none

    • getComment

      @Nullable String getComment()
      Returns the comment or description of the column.
      Returns:
      Column comment, or null if none