Package com.gpudb.protocol

Class RawUpdateRecordsRequest.Options

    • Field Detail

      • GLOBAL_EXPRESSION

        public static final String GLOBAL_EXPRESSION
        An optional global expression to reduce the search space of the predicates listed in expressions. The default value is ''.
        See Also:
        Constant Field Values

      • BYPASS_SAFETY_CHECKS

        public static final String BYPASS_SAFETY_CHECKS
        When set to TRUE, all predicates are available for primary key updates. Keep in mind that it is possible to destroy data in this case, since a single predicate may match multiple objects (potentially all of records of a table), and then updating all of those records to have the same primary key will, due to the primary key uniqueness constraints, effectively delete all but one of those updated records. Supported values: The default value is FALSE.
        See Also:
        Constant Field Values

      • UPDATE_ON_EXISTING_PK

        public static final String UPDATE_ON_EXISTING_PK
        Specifies the record collision policy for updating a table with a primary key. There are two ways that a record collision can occur.

        The first is an "update collision", which happens when the update changes the value of the updated record's primary key, and that new primary key already exists as the primary key of another record in the table.

        The second is an "insert collision", which occurs when a given filter in expressions finds no records to update, and the alternate insert record given in recordsToInsert (or recordsToInsertStr) contains a primary key matching that of an existing record in the table.

        If UPDATE_ON_EXISTING_PK is set to TRUE, "update collisions" will result in the existing record collided into being removed and the record updated with values specified in newValuesMaps taking its place; "insert collisions" will result in the collided-into record being updated with the values in recordsToInsert / recordsToInsertStr (if given).

        If set to FALSE, the existing collided-into record will remain unchanged, while the update will be rejected and the error handled as determined by IGNORE_EXISTING_PK. If the specified table does not have a primary key, then this option has no effect. Supported values:

        • TRUE: Overwrite the collided-into record when updating a record's primary key or inserting an alternate record causes a primary key collision between the record being updated/inserted and another existing record in the table
        • FALSE: Reject updates which cause primary key collisions between the record being updated/inserted and an existing record in the table
        The default value is FALSE.
        See Also:
        Constant Field Values

      • IGNORE_EXISTING_PK

        public static final String IGNORE_EXISTING_PK
        Specifies the record collision error-suppression policy for updating a table with a primary key, only used when primary key record collisions are rejected (UPDATE_ON_EXISTING_PK is FALSE). If set to TRUE, any record update that is rejected for resulting in a primary key collision with an existing table record will be ignored with no error generated. If FALSE, the rejection of any update for resulting in a primary key collision will cause an error to be reported. If the specified table does not have a primary key or if UPDATE_ON_EXISTING_PK is TRUE, then this option has no effect. Supported values:
        • TRUE: Ignore updates that result in primary key collisions with existing records
        • FALSE: Treat as errors any updates that result in primary key collisions with existing records
        The default value is FALSE.
        See Also:
        Constant Field Values

      • UPDATE_PARTITION

        public static final String UPDATE_PARTITION
        Force qualifying records to be deleted and reinserted so their partition membership will be reevaluated. Supported values: The default value is FALSE.
        See Also:
        Constant Field Values

      • TRUNCATE_STRINGS

        public static final String TRUNCATE_STRINGS
        If set to TRUE, any strings which are too long for their charN string fields will be truncated to fit. Supported values: The default value is FALSE.
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        Constant Field Values

      • USE_EXPRESSIONS_IN_NEW_VALUES_MAPS

        public static final String USE_EXPRESSIONS_IN_NEW_VALUES_MAPS
        When set to TRUE, all new values in newValuesMaps are considered as expression values. When set to FALSE, all new values in newValuesMaps are considered as constants. NOTE: When TRUE, string constants will need to be quoted to avoid being evaluated as expressions. Supported values: The default value is FALSE.
        See Also:
        Constant Field Values