Build the filter condition AST expression for mo_columns, as follows: account_id = current_id or (account_id = 0 and attr_databse in mo_catalog and att_relname not in other tables).

Build the filter condition AST expression for mo_database, as follows: account_id = cur_accountId or (account_id = 0 and datname in ('mo_catalog')).

Build the filter condition AST expression for mo_tables, as follows: account_id = cur_account_id or (account_id = 0 and (relname in ('mo_tables','mo_database','mo_columns') or relkind = 'cluster')).

BuildUniqueKeyBatch used in test to validate serialWithCompacted(), compactSingleIndexCol() and compactPrimaryCol().

build the clusterBy key's vector of the cluster table according to the composite column name, and append the result vector to batch cbName: column name of composite column.

build the vector of the composite key, and append the result vector to batch ckeyName: column name of composite column keyParts: parts of the composite column.

IsValidNameForPartitionTable the name forms the partition table does not have the partitionDelimiter.

MakeNameOfPartitionTable !!!NOTE!!! With assumption: the partition name and the table name does not have partitionDelimiter.

SplitNameOfPartitionTable splits the partition table name into partition name and origin table name.

TableIsClusterTable check the table type is cluster table.