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Constraints

  • If an out-of-bounds error occurs during numeric calculation, OmniData throws an out-of-bounds exception.
  • When comparing character strings, ensure that constants are enclosed in single quotation marks. Example: select * from table where char = '123'
  • The decimal (38,38) data type is not supported.
  • The timestamp data type is not supported. It is processed in the native calculation approach.
  • Operator pushdown is unavailable for transaction tables, which are processed in the native calculation approach.
  • Operator pushdown is unavailable for bucket tables, which are processed in the native calculation approach.
  • Ensure that the ANALYZE information of a data table is the latest. Otherwise, the pushdown selectivity is inaccurate.
Parent topic: Feature Overview