CatalogV2Util Utility¶

getTableProviderCatalog¶

getTableProviderCatalog(
  provider: SupportsCatalogOptions,
  catalogManager: CatalogManager,
  options: CaseInsensitiveStringMap): TableCatalog

getTableProviderCatalog...FIXME

getTableProviderCatalog is used when:

• DataFrameReader is requested to load (for a data source that is a [SupportsCatalogOptions])

• DataFrameWriter is requested to save (for a data source that is a [SupportsCatalogOptions])

Loading Table¶

loadTable(
  catalog: CatalogPlugin,
  ident: Identifier): Option[Table]

loadTable requests the given CatalogPlugin (as a TableCatalog) to load the table by the Identifier.

loadTable returns the Table if available or None.

loadTable is used when...FIXME

Creating AlterTable Logical Command¶

createAlterTable(
  originalNameParts: Seq[String],
  catalog: CatalogPlugin,
  tableName: Seq[String],
  changes: Seq[TableChange]): AlterTable

createAlterTable converts the CatalogPlugin to a TableCatalog.

createAlterTable creates an AlterTable (with an UnresolvedV2Relation).

createAlterTable is used when:

• ResolveCatalogs and ResolveSessionCatalog logical resolution rules are executed (and resolve AlterTableAddColumnsStatement, AlterTableReplaceColumnsStatement, AlterTableAlterColumnStatement, AlterTableRenameColumnStatement, AlterTableDropColumnsStatement, AlterTableSetPropertiesStatement, AlterTableUnsetPropertiesStatement, AlterTableSetLocationStatement operators)